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Kruskal–Wallis test

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406: 161: 135: 401:{\displaystyle \definecolor {Orange}{rgb}{1,0.5019607843137255,0}\definecolor {ChromeYellow}{rgb}{1,0.6549019607843137,0.011764705882352941}\definecolor {Green}{rgb}{0,0.5019607843137255,0}\definecolor {green}{rgb}{0,0.5019607843137255,0}\definecolor {Blue}{rgb}{0,0,1}\definecolor {Purple}{rgb}{0.5019607843137255,0,0.5019607843137255}H=({\color {Red}N}-1){\frac {\sum _{i=1}^{\color {Orange}g}{\color {ChromeYellow}n_{i}}({\color {Blue}{\bar {r}}_{i\cdot }}-{\color {Purple}{\bar {r}}})^{2}}{\sum _{i=1}^{\color {Orange}g}\sum _{j=1}^{\color {ChromeYellow}n_{i}}({\color {Green}r_{ij}}-{\color {Purple}{\bar {r}}})^{2}}},} 122:
alternative hypothesis is that at least one population median of one group is different from the population median of at least one other group. Otherwise, it is impossible to say, whether the rejection of the null hypothesis comes from the shift in locations or group dispersions. This is the same issue that happens also with the Mann-Whitney test. If the data contains potential outliers, if the population distributions have heavy tails, or if the population distributions are significantly skewed, the Kruskal-Wallis test is more powerful at detecting differences among treatments than
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A large amount of computing resources is required to compute exact probabilities for the Kruskal–Wallis test. Existing software only provides exact probabilities for sample sizes of less than about 30 participants. These software programs rely on the asymptotic approximation for larger sample sizes.
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It is supposed that the treatments significantly affect the response level and then there is an order among the treatments: one tends to give the lowest response, another gives the next lowest response is second, and so forth. Since it is a nonparametric method, the Kruskal–Wallis test does not
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tests using Dunn's test, which (1) properly employs the same rankings as the Kruskal–Wallis test, and (2) properly employs the pooled variance implied by the null hypothesis of the Kruskal–Wallis test in order to determine which of the sample pairs are significantly different. When performing
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of the residuals, unlike the analogous one-way analysis of variance. If the researcher can make the assumptions of an identically shaped and scaled distribution for all groups, except for any difference in medians, then the null hypothesis is that the medians of all groups are equal, and the
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If the statistic is not significant, there is no evidence of stochastic dominance among the samples. However, if the test is significant then at least one sample stochastically dominates another sample. Then, a researcher might use sample contrasts between individual sample pairs, or
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Exact probability values for larger sample sizes are available. Spurrier (2003) published exact probability tables for samples as large as 45 participants. Meyer and Seaman (2006) produced exact probability distributions for samples as large as 105 participants.
487: 126:. On the other hand, if the population distributions are normal or are light-tailed and symmetric, then ANOVA F-test will generally have greater power which is the probability of rejecting the null hypothesis when it indeed should be rejected. 104:
one other sample. The test does not identify where this stochastic dominance occurs or for how many pairs of groups stochastic dominance obtains. For analyzing the specific sample pairs for stochastic dominance, Dunn's test, pairwise
1206:{\displaystyle {\begin{aligned}H&={\frac {12}{N(N+1)}}\sum _{i=1}^{g}n_{i}\left({\bar {r}}_{i\cdot }-{\frac {N+1}{2}}\right)^{2}\\&={\frac {12}{N(N+1)}}\sum _{i=1}^{g}n_{i}{\bar {r}}_{i\cdot }^{2}-\ 3(N+1)\end{aligned}}} 456: 1339: 513: 775: 712: 586: 1481: 949: 937: 2062:
To determine which months differ, post-hoc tests may be performed using a Wilcoxon test for each pair of months, with a Bonferroni (or other) correction for multiple hypothesis testing.
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for testing whether samples originate from the same distribution. It is used for comparing two or more independent samples of equal or different sample sizes. It extends the
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The following example uses data from Chambers et al. on daily readings of ozone for May 1 to September 30, 1973, in New York City. The data are in the R data set
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The post-hoc tests indicate that, after Bonferroni correction for multiple testing, the following differences are significant (adjusted p < 0.05).
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Won Choi, Jae Won Lee, Myung-Hoe Huh, and Seung-Ho Kang (2003). "An Algorithm for Computing the Exact Distribution of the Kruskal–Wallis Test".
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Divine; Norton; Barón; Juarez-Colunga (2018). "The Wilcoxon–Mann–Whitney Procedure Fails as a Test of Medians". The American Statistician.
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Corder, G.W. & Foreman, D.I. (2010). Nonparametric Statistics for Non-statisticians: A Step-by-Step Approach. Hoboken, NJ: Wiley.
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ignoring group membership. Assign any tied values the average of the ranks they would have received had they not been tied.
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Bruin (2006). "FAQ: Why is the Mann-Whitney significant when the medians are equal?". UCLA: Statistical Consulting Group.
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The Kruskal-Wallis test finds a significant difference (p = 6.901e-06) indicating that ozone differs among the 5 months.
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Hart (2001). "Mann-Whitney test is not just a test of medians: differences in spread can be important". BMJ.
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A correction for ties if using the short-cut formula described in the previous point can be made by dividing
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multiple sample contrasts or tests, the Type I error rate tends to become inflated, raising concerns about
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The Kruskal-Wallis test can be implemented in many programming tools and languages. We list here only the
1774:. If a table of the chi-squared probability distribution is available, the critical value of chi-squared, 30: 5257: 4135: 5161: 5103: 5046: 4872: 4765: 4674: 4400: 4284: 4143: 4025: 4017: 3832: 3728: 3706: 3665: 3630: 3597: 3543: 3518: 3473: 3412: 3372: 3174: 2997: 2762: 1438: 110: 5240: 4130: 2368: 1887:
Choi et al. made a review of two methods that had been developed to compute the exact distribution of
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Paper presented at the annual meeting of the American Educational Research Association, San Francisco
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Meyer; Seaman (April 2006). "Expanded tables of critical values for the Kruskal–Wallis H statistic".
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that are tied at a particular value. This correction usually makes little difference in the value of
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Critical value tables and exact probabilities from Meyer and Seaman are available for download at
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Non-parametric method for testing whether samples originate from the same distribution
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Spurrier, J. D. (2003). "On the null distribution of the Kruskal–Wallis statistic".
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Finally, the decision to reject or accept the null hypothesis is made by comparing
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John M. Chambers, William S. Cleveland, Beat Kleiner, and Paul A. Tukey (1983).
2702: 113:, or the more powerful but less well known Conover–Iman test are sometimes used. 5184: 5146: 4829: 4730: 4592: 4405: 4372: 3864: 3781: 3776: 3420: 3377: 3357: 3337: 3327: 3096: 2266: 1602:(obtained from a table or software) for a given significance or alpha level. If 451:{\textstyle \definecolor {Orange}{rgb}{1,0.5019607843137255,0}\color {Orange}g} 4030: 3510: 3210: 3141: 3091: 3066: 2986: 2723: 2631: 2570: 4183: 4035: 3655: 3450: 3362: 3347: 3342: 3307: 2599:. Duxbury advanced series. Pacific Gove, CA: Brooks-Cole; Thomson Learning. 2388:
Kruskal; Wallis (1952). "Use of ranks in one-criterion variance analysis".
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An illustration of how to assign any tied values the average of the rank
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A significant Kruskal–Wallis test indicates that at least one sample
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If the data contain no ties, the denominator of the expression for
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Dunn, Olive Jean (1964). "Multiple comparisons using rank sums".
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Rank all data from all groups together; i.e., rank the data from
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The last formula contains only the squares of the average ranks.
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Berger, Paul D.; Maurer, Robert E.; Celli, Giovana B. (2018).
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to the critical value obtained from the exact distribution of
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Difference between ANOVA and Kruskal–Wallis test with ranks
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Communications in Statistics - Simulation and Computation
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is the number of groupings of different tied ranks, and
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KruskalWallisTest(groups::AbstractVector{<:Real}...)
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is the total number of observations across all groups
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Autoregressive conditional heteroskedasticity (ARCH)
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Nonparametric Statistics for the Behavioral Sciences
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is the rank (among all observations) of observation
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Nonparametrics: Statistical methods based on ranks.
1441:is used to adjust the significance level, that is, 2664:Montgomery, Douglas C.; Runger, George C. (2018). 2597:An introduction to modern nonparametric statistics 2595:Higgins, James J.; Jeffrey Higgins, James (2004). 1899: 1836: 1810: 1762: 1738: 1711: 1681: 1661: 1641: 1614: 1594: 1567: 1544: 1524: 1504: 1475: 1421: 1400: 1380: 1353: 1333: 1231: 1205: 931: 879: 821: 796: 764: 700: 680: 574: 554: 534: 501: 481: 450: 426: 400: 56: 2870:"Math – The Commons Math User Guide - Statistics" 2300:base-package has an implement of this test using 1433:When performing multiple sample comparisons, the 688:is the average rank of all observations in group 2666:Applied statistics and probability for engineers 4416:Multivariate adaptive regression splines (MARS) 2391:Journal of the American Statistical Association 1746:values are small (i.e., less than 5) the exact 2532:Lehmann, E. L., & D'Abrera, H. J. (1975). 2421:Nonparametric Statistics for Non-Statisticians 2971: 2417:Corder, Gregory W.; Foreman, Dale I. (2009). 1916:Test for differences in ozone levels by month 8: 2822:"scipy.stats.kruskal — SciPy v1.11.4 Manual" 2806:: CS1 maint: multiple names: authors list ( 2767:: CS1 maint: multiple names: authors list ( 932:{\displaystyle {\bar {r}}={\tfrac {N+1}{2}}} 2724:http://faculty.virginia.edu/kruskal-wallis/ 2626:. Cham: Springer International Publishing. 2425:. Hoboken: John Wiley & Sons. pp.  5025: 5012: 4929: 4735: 4604: 4579: 4350: 4326: 4054: 3837: 3638: 3625: 3408: 3395: 3034: 3025: 3012: 2978: 2964: 2956: 2894:"Nonparametric tests · HypothesisTests.jl" 2515:(Report). Los Alamos Scientific Laboratory 2454:(Second ed.). New York: McGraw–Hill. 2310:has the implement provided by provided by 1388:is the number of tied values within group 2508:Conover, W. Jay; Iman, Ronald L. (1979). 2503: 2501: 1892: 1823: 1802: 1785: 1779: 1755: 1730: 1724: 1698: 1674: 1654: 1633: 1627: 1607: 1586: 1580: 1560: 1539: 1537: 1517: 1491: 1490: 1488: 1468: 1463: 1449: 1448: 1446: 1437:tends to become inflated. Therefore, the 1414: 1393: 1372: 1366: 1346: 1316: 1301: 1288: 1283: 1270: 1259: 1252: 1244: 1224: 1169: 1161: 1150: 1149: 1142: 1132: 1121: 1090: 1074: 1051: 1039: 1028: 1027: 1014: 1004: 993: 962: 948: 946: 909: 895: 894: 892: 869: 834: 814: 784: 777: 735: 719: 718: 716: 714: 693: 670: 655: 650: 642: 637: 626: 619: 605: 594: 593: 590: 588: 567: 547: 522: 515: 494: 472: 465: 441: 417: 386: 369: 368: 366: 352: 346: 334: 328: 317: 305: 294: 282: 265: 264: 262: 248: 237: 236: 233: 222: 216: 208: 197: 190: 174: 163: 49: 2846:"kruskal.test function - RDocumentation" 1818:, can be found by entering the table at 1430:unless there are a large number of ties. 2380: 1811:{\displaystyle \chi _{\alpha :g-1}^{2}} 1532:is the initial significance level, and 489:is the number of observations in group 4942:Kaplan–Meier estimator (product limit) 2799: 2760: 2473: 2471: 779: 717: 591: 517: 467: 443: 419: 367: 347: 329: 306: 263: 234: 217: 209: 175: 7: 5252: 4952:Accelerated failure time (AFT) model 2510:"On multiple-comparisons procedures" 1512:is the adjusted significance level, 5264: 4547:Analysis of variance (ANOVA, anova) 2784:Graphical Methods for Data Analysis 2691:Journal of Nonparametric Statistics 4642:Cochran–Mantel–Haenszel statistics 3268:Pearson product-moment correlation 25: 1770:can be quite different from this 5263: 5251: 5239: 5226: 5225: 2927:Applied Nonparametric Statistics 1931: 4901:Least-squares spectral analysis 2285:can return the test result and 156:The test statistic is given by 3882:Mean-unbiased minimum-variance 2404:10.1080/01621459.1952.10483441 1847:and looking under the desired 1496: 1454: 1307: 1276: 1196: 1184: 1155: 1111: 1099: 1033: 983: 971: 900: 880:{\displaystyle (N-1)N(N+1)/12} 866: 854: 848: 836: 759: 747: 724: 599: 383: 374: 343: 279: 270: 242: 230: 187: 171: 1: 5195:Geographic information system 4411:Simultaneous equations models 2951:An online version of the test 2552:10.1080/00031305.2017.1305291 4378:Coefficient of determination 3989:Uniformly most powerful test 2703:10.1080/10485250310001634719 1719:degrees of freedom. If some 95:one-way analysis of variance 4947:Proportional hazards models 4891:Spectral density estimation 4873:Vector autoregression (VAR) 4307:Maximum posterior estimator 3539:Randomized controlled trial 2749:(32, number 4): 1029–1040. 1552:is the number of contrasts. 5318: 4707:Multivariate distributions 3127:Average absolute deviation 2450:Siegel; Castellan (1988). 1505:{\displaystyle {\bar {a}}} 772:is the average of all the 427:{\textstyle \color {Red}N} 5221: 5024: 5011: 4695:Structural equation model 4603: 4578: 4349: 4325: 4057: 4031:Score/Lagrange multiplier 3637: 3624: 3446:Sample size determination 3407: 3394: 3024: 3011: 2993: 2921:Daniel, Wayne W. (1990). 2632:10.1007/978-3-319-64583-4 2256:Month 9 vs Months 7 and 8 2253:Month 5 vs Months 7 and 8 5302:Nonparametric statistics 5190:Environmental statistics 4712:Elliptical distributions 4505:Generalized linear model 4434:Simple linear regression 4204:Hodges–Lehmann estimator 3661:Probability distribution 3570:Stochastic approximation 3132:Coefficient of variation 2571:10.1136/bmj.323.7309.391 2269:free software packages: 2064: 1940: 1869:Exact probability tables 1772:chi-squared distribution 1748:probability distribution 1691:chi-squared distribution 102:stochastically dominates 4850:Cross-correlation (XCF) 4458:Non-standard predictors 3892:Lehmann–Scheffé theorem 3565:Adaptive clinical trial 2364:Jonckheere's trend test 1525:{\displaystyle \alpha } 458:is the number of groups 5246:Mathematics portal 5067:Engineering statistics 4975:Nelson–Aalen estimator 4552:Analysis of covariance 4439:Ordinary least squares 4363:Pearson product-moment 3767:Statistical functional 3678:Empirical distribution 3511:Controlled experiments 3240:Frequency distribution 3018:Descriptive statistics 2850:www.rdocumentation.org 2281:package, the function 2103:"bonferroni" 1901: 1838: 1812: 1764: 1740: 1713: 1683: 1663: 1643: 1616: 1596: 1569: 1546: 1545:{\displaystyle \Bbbk } 1526: 1506: 1477: 1423: 1402: 1382: 1355: 1335: 1275: 1233: 1207: 1137: 1009: 933: 881: 823: 798: 766: 702: 682: 649: 576: 556: 536: 503: 483: 452: 428: 402: 342: 312: 215: 139: 76:one-way ANOVA on ranks 58: 35: 5162:Population statistics 5104:System identification 4838:Autocorrelation (ACF) 4766:Exponential smoothing 4680:Discriminant analysis 4675:Canonical correlation 4539:Partition of variance 4401:Regression validation 4245:(Jonckheere–Terpstra) 4144:Likelihood-ratio test 3833:Frequentist inference 3745:Location–scale family 3666:Sampling distribution 3631:Statistical inference 3598:Cross-sectional study 3585:Observational studies 3544:Randomized experiment 3373:Stem-and-leaf display 3175:Central limit theorem 2755:10.1081/SAC-120023876 1902: 1878:Exact distribution of 1839: 1813: 1765: 1741: 1739:{\displaystyle n_{i}} 1714: 1684: 1664: 1644: 1642:{\displaystyle H_{c}} 1617: 1597: 1595:{\displaystyle H_{c}} 1570: 1547: 1527: 1507: 1478: 1424: 1403: 1383: 1356: 1336: 1255: 1234: 1208: 1117: 989: 934: 882: 824: 799: 767: 703: 683: 622: 577: 557: 537: 504: 484: 453: 429: 403: 313: 290: 193: 137: 111:Bonferroni correction 59: 33: 5297:Analysis of variance 5085:Probabilistic design 4670:Principal components 4513:Exponential families 4465:Nonlinear regression 4444:General linear model 4406:Mixed effects models 4396:Errors and residuals 4373:Confounding variable 4275:Bayesian probability 4253:Van der Waerden test 4243:Ordered alternative 4008:Multiple comparisons 3887:Rao–Blackwellization 3850:Estimating equations 3806:Statistical distance 3524:Factorial experiment 3057:Arithmetic-Geometric 2349:Mann–Whitney U tests 2067:pairwise.wilcox.test 1891: 1862:multiple comparisons 1822: 1778: 1754: 1723: 1697: 1673: 1653: 1626: 1606: 1579: 1575:to a critical value 1559: 1536: 1516: 1487: 1445: 1439:Bonferroni procedure 1413: 1392: 1365: 1345: 1243: 1223: 945: 891: 833: 813: 776: 713: 692: 587: 566: 546: 514: 493: 464: 440: 416: 162: 48: 5157:Official statistics 5080:Methods engineering 4761:Seasonal adjustment 4529:Poisson regressions 4449:Bayesian regression 4388:Regression analysis 4368:Partial correlation 4340:Regression analysis 3939:Prediction interval 3934:Likelihood interval 3924:Confidence interval 3916:Interval estimation 3877:Unbiased estimators 3695:Model specification 3575:Up-and-down designs 3263:Partial correlation 3219:Index of dispersion 3137:Interquartile range 2623:Experimental Design 2283:scipy.stats.kruskal 1807: 1293: 1174: 119:normal distribution 40:Kruskal–Wallis test 18:Kruskal-Wallis test 5177:Spatial statistics 5057:Medical statistics 4957:First hitting time 4911:Whittle likelihood 4562:Degrees of freedom 4557:Multivariate ANOVA 4490:Heteroscedasticity 4302:Bayesian estimator 4267:Bayesian inference 4116:Kolmogorov–Smirnov 4001:Randomization test 3971:Testing hypotheses 3944:Tolerance interval 3855:Maximum likelihood 3750:Exponential family 3683:Density estimation 3643:Statistical theory 3603:Natural experiment 3549:Scientific control 3466:Survey methodology 3152:Standard deviation 2874:commons.apache.org 2729:2018-10-17 at the 2369:Mood's Median test 2323:HypothesisTests.jl 1897: 1845:degrees of freedom 1834: 1808: 1781: 1760: 1736: 1709: 1679: 1659: 1639: 1612: 1592: 1565: 1542: 1522: 1502: 1473: 1419: 1398: 1381:{\textstyle t_{i}} 1378: 1351: 1331: 1279: 1229: 1203: 1201: 1148: 929: 927: 877: 819: 794: 793: 762: 745: 730: 698: 678: 614: 572: 552: 532: 531: 499: 479: 478: 448: 447: 424: 423: 398: 380: 361: 340: 310: 276: 257: 228: 213: 179: 140: 54: 36: 5292:Statistical tests 5279: 5278: 5217: 5216: 5213: 5212: 5152:National accounts 5122:Actuarial science 5114:Social statistics 5007: 5006: 5003: 5002: 4999: 4998: 4934:Survival function 4919: 4918: 4781:Granger causality 4622:Contingency table 4597:Survival analysis 4574: 4573: 4570: 4569: 4426:Linear regression 4321: 4320: 4317: 4316: 4292:Credible interval 4261: 4260: 4044: 4043: 3860:Method of moments 3729:Parametric family 3690:Statistical model 3620: 3619: 3616: 3615: 3534:Random assignment 3456:Statistical power 3390: 3389: 3386: 3385: 3235:Contingency table 3205: 3204: 3072:Generalized/power 2675:978-1-119-40036-3 2641:978-3-319-64582-7 2606:978-0-534-38775-4 2325:has the function 1900:{\displaystyle H} 1763:{\displaystyle H} 1682:{\displaystyle H} 1662:{\displaystyle H} 1615:{\displaystyle H} 1568:{\displaystyle H} 1499: 1471: 1457: 1329: 1232:{\displaystyle H} 1180: 1158: 1115: 1067: 1036: 987: 926: 903: 822:{\displaystyle H} 744: 727: 701:{\displaystyle i} 676: 602: 575:{\displaystyle i} 555:{\displaystyle j} 502:{\displaystyle i} 393: 377: 273: 245: 57:{\displaystyle H} 16:(Redirected from 5309: 5267: 5266: 5255: 5254: 5244: 5243: 5229: 5228: 5132:Crime statistics 5026: 5013: 4930: 4896:Fourier analysis 4883:Frequency domain 4863: 4810: 4776:Structural break 4736: 4685:Cluster analysis 4632:Log-linear model 4605: 4580: 4521: 4495:Homoscedasticity 4351: 4327: 4246: 4238: 4230: 4229:(Kruskal–Wallis) 4214: 4199: 4154:Cross validation 4139: 4121:Anderson–Darling 4068: 4055: 4026:Likelihood-ratio 4018:Parametric tests 3996:Permutation test 3979:1- & 2-tails 3870:Minimum distance 3842:Point estimation 3838: 3789:Optimal decision 3740: 3639: 3626: 3608:Quasi-experiment 3558:Adaptive designs 3409: 3396: 3273:Rank correlation 3035: 3026: 3013: 2980: 2973: 2966: 2957: 2940: 2908: 2907: 2905: 2904: 2890: 2884: 2883: 2881: 2880: 2866: 2860: 2859: 2857: 2856: 2842: 2836: 2835: 2833: 2832: 2818: 2812: 2811: 2805: 2797: 2779: 2773: 2772: 2766: 2758: 2740: 2734: 2721: 2713: 2707: 2706: 2686: 2680: 2679: 2661: 2655: 2652: 2646: 2645: 2617: 2611: 2610: 2592: 2586: 2585: 2581: 2575: 2574: 2562: 2556: 2555: 2543: 2537: 2530: 2524: 2523: 2521: 2520: 2514: 2505: 2496: 2495: 2475: 2466: 2465: 2447: 2441: 2440: 2424: 2414: 2408: 2407: 2398:(260): 583–621. 2385: 2328: 2324: 2303: 2291: 2284: 2245: 2242: 2239: 2236: 2233: 2230: 2227: 2224: 2221: 2218: 2215: 2212: 2209: 2206: 2203: 2200: 2197: 2194: 2191: 2188: 2185: 2182: 2179: 2176: 2173: 2170: 2167: 2164: 2161: 2158: 2155: 2152: 2149: 2146: 2143: 2140: 2137: 2134: 2131: 2128: 2125: 2122: 2119: 2116: 2113: 2110: 2107: 2104: 2101: 2098: 2095: 2092: 2089: 2086: 2083: 2080: 2077: 2074: 2071: 2068: 2058: 2055: 2052: 2049: 2046: 2043: 2040: 2037: 2034: 2031: 2028: 2025: 2022: 2019: 2016: 2013: 2010: 2007: 2004: 2001: 1998: 1995: 1992: 1989: 1986: 1983: 1980: 1977: 1974: 1971: 1968: 1965: 1962: 1959: 1956: 1953: 1950: 1947: 1944: 1935: 1927: 1923: 1906: 1904: 1903: 1898: 1883: 1843: 1841: 1840: 1837:{\textstyle g-1} 1835: 1817: 1815: 1814: 1809: 1806: 1801: 1769: 1767: 1766: 1761: 1745: 1743: 1742: 1737: 1735: 1734: 1718: 1716: 1715: 1712:{\textstyle g-1} 1710: 1688: 1686: 1685: 1680: 1668: 1666: 1665: 1660: 1648: 1646: 1645: 1640: 1638: 1637: 1621: 1619: 1618: 1613: 1601: 1599: 1598: 1593: 1591: 1590: 1574: 1572: 1571: 1566: 1551: 1549: 1548: 1543: 1531: 1529: 1528: 1523: 1511: 1509: 1508: 1503: 1501: 1500: 1492: 1482: 1480: 1479: 1474: 1472: 1464: 1459: 1458: 1450: 1428: 1426: 1425: 1420: 1407: 1405: 1404: 1399: 1387: 1385: 1384: 1379: 1377: 1376: 1360: 1358: 1357: 1352: 1340: 1338: 1337: 1332: 1330: 1328: 1321: 1320: 1310: 1306: 1305: 1292: 1287: 1274: 1269: 1253: 1238: 1236: 1235: 1230: 1212: 1210: 1209: 1204: 1202: 1178: 1173: 1168: 1160: 1159: 1151: 1147: 1146: 1136: 1131: 1116: 1114: 1091: 1083: 1079: 1078: 1073: 1069: 1068: 1063: 1052: 1047: 1046: 1038: 1037: 1029: 1019: 1018: 1008: 1003: 988: 986: 963: 938: 936: 935: 930: 928: 922: 911: 905: 904: 896: 886: 884: 883: 878: 873: 828: 826: 825: 820: 803: 801: 800: 795: 792: 791: 771: 769: 768: 763: 746: 737: 731: 729: 728: 720: 707: 705: 704: 699: 687: 685: 684: 679: 677: 675: 674: 665: 664: 663: 662: 648: 647: 646: 636: 620: 615: 613: 612: 604: 603: 595: 581: 579: 578: 573: 561: 559: 558: 553: 541: 539: 538: 533: 530: 529: 508: 506: 505: 500: 488: 486: 485: 480: 477: 476: 457: 455: 454: 449: 433: 431: 430: 425: 407: 405: 404: 399: 394: 392: 391: 390: 381: 379: 378: 370: 362: 360: 359: 341: 339: 338: 327: 311: 304: 288: 287: 286: 277: 275: 274: 266: 258: 256: 255: 247: 246: 238: 229: 227: 226: 214: 207: 191: 180: 152: 146: 83:statistical test 63: 61: 60: 55: 21: 5317: 5316: 5312: 5311: 5310: 5308: 5307: 5306: 5282: 5281: 5280: 5275: 5238: 5209: 5171: 5108: 5094:quality control 5061: 5043:Clinical trials 5020: 4995: 4979: 4967:Hazard function 4961: 4915: 4877: 4861: 4824: 4820:Breusch–Godfrey 4808: 4785: 4725: 4700:Factor analysis 4646: 4627:Graphical model 4599: 4566: 4533: 4519: 4499: 4453: 4420: 4382: 4345: 4344: 4313: 4257: 4244: 4236: 4228: 4212: 4197: 4176:Rank statistics 4170: 4149:Model selection 4137: 4095:Goodness of fit 4089: 4066: 4040: 4012: 3965: 3910: 3899:Median unbiased 3827: 3738: 3671:Order statistic 3633: 3612: 3579: 3553: 3505: 3460: 3403: 3401:Data collection 3382: 3294: 3249: 3223: 3201: 3161: 3113: 3030:Continuous data 3020: 3007: 2989: 2984: 2947: 2937: 2920: 2917: 2915:Further reading 2912: 2911: 2902: 2900: 2892: 2891: 2887: 2878: 2876: 2868: 2867: 2863: 2854: 2852: 2844: 2843: 2839: 2830: 2828: 2820: 2819: 2815: 2798: 2794: 2781: 2780: 2776: 2759: 2742: 2741: 2737: 2731:Wayback Machine 2715: 2714: 2710: 2688: 2687: 2683: 2676: 2663: 2662: 2658: 2653: 2649: 2642: 2619: 2618: 2614: 2607: 2594: 2593: 2589: 2583: 2582: 2578: 2564: 2563: 2559: 2545: 2544: 2540: 2531: 2527: 2518: 2516: 2512: 2507: 2506: 2499: 2492:10.2307/1266041 2477: 2476: 2469: 2462: 2449: 2448: 2444: 2437: 2416: 2415: 2411: 2387: 2386: 2382: 2377: 2354:Bonferroni test 2340: 2329:to compute the 2326: 2322: 2301: 2287: 2282: 2263: 2247: 2246: 2243: 2240: 2237: 2234: 2231: 2228: 2225: 2222: 2219: 2216: 2213: 2210: 2207: 2204: 2201: 2198: 2195: 2192: 2189: 2186: 2183: 2180: 2177: 2174: 2171: 2168: 2165: 2162: 2159: 2156: 2153: 2150: 2147: 2144: 2141: 2138: 2135: 2132: 2129: 2126: 2123: 2120: 2117: 2114: 2111: 2108: 2105: 2102: 2099: 2097:p.adjust.method 2096: 2093: 2090: 2087: 2084: 2081: 2078: 2075: 2072: 2069: 2066: 2060: 2059: 2056: 2053: 2050: 2047: 2044: 2041: 2038: 2035: 2032: 2029: 2026: 2023: 2020: 2017: 2014: 2011: 2008: 2005: 2002: 1999: 1996: 1993: 1990: 1987: 1984: 1981: 1978: 1975: 1972: 1969: 1966: 1963: 1960: 1957: 1954: 1951: 1948: 1945: 1942: 1925: 1921: 1918: 1913: 1889: 1888: 1885: 1879: 1871: 1851:or alpha level. 1820: 1819: 1776: 1775: 1752: 1751: 1726: 1721: 1720: 1695: 1694: 1671: 1670: 1651: 1650: 1629: 1624: 1623: 1622:is bigger than 1604: 1603: 1582: 1577: 1576: 1557: 1556: 1534: 1533: 1514: 1513: 1485: 1484: 1443: 1442: 1411: 1410: 1390: 1389: 1368: 1363: 1362: 1343: 1342: 1312: 1311: 1297: 1254: 1241: 1240: 1221: 1220: 1213: 1200: 1199: 1138: 1095: 1081: 1080: 1053: 1026: 1025: 1021: 1020: 1010: 967: 955: 943: 942: 912: 889: 888: 831: 830: 811: 810: 780: 774: 773: 711: 710: 690: 689: 666: 651: 638: 621: 592: 585: 584: 564: 563: 544: 543: 518: 512: 511: 491: 490: 468: 462: 461: 438: 437: 414: 413: 382: 348: 330: 289: 278: 235: 218: 192: 160: 159: 148: 144: 132: 72:W. Allen Wallis 68:William Kruskal 46: 45: 44:Kruskal–Wallis 28: 23: 22: 15: 12: 11: 5: 5315: 5313: 5305: 5304: 5299: 5294: 5284: 5283: 5277: 5276: 5274: 5273: 5261: 5249: 5235: 5222: 5219: 5218: 5215: 5214: 5211: 5210: 5208: 5207: 5202: 5197: 5192: 5187: 5181: 5179: 5173: 5172: 5170: 5169: 5164: 5159: 5154: 5149: 5144: 5139: 5134: 5129: 5124: 5118: 5116: 5110: 5109: 5107: 5106: 5101: 5096: 5087: 5082: 5077: 5071: 5069: 5063: 5062: 5060: 5059: 5054: 5049: 5040: 5038:Bioinformatics 5034: 5032: 5022: 5021: 5016: 5009: 5008: 5005: 5004: 5001: 5000: 4997: 4996: 4994: 4993: 4987: 4985: 4981: 4980: 4978: 4977: 4971: 4969: 4963: 4962: 4960: 4959: 4954: 4949: 4944: 4938: 4936: 4927: 4921: 4920: 4917: 4916: 4914: 4913: 4908: 4903: 4898: 4893: 4887: 4885: 4879: 4878: 4876: 4875: 4870: 4865: 4857: 4852: 4847: 4846: 4845: 4843:partial (PACF) 4834: 4832: 4826: 4825: 4823: 4822: 4817: 4812: 4804: 4799: 4793: 4791: 4790:Specific tests 4787: 4786: 4784: 4783: 4778: 4773: 4768: 4763: 4758: 4753: 4748: 4742: 4740: 4733: 4727: 4726: 4724: 4723: 4722: 4721: 4720: 4719: 4704: 4703: 4702: 4692: 4690:Classification 4687: 4682: 4677: 4672: 4667: 4662: 4656: 4654: 4648: 4647: 4645: 4644: 4639: 4637:McNemar's test 4634: 4629: 4624: 4619: 4613: 4611: 4601: 4600: 4583: 4576: 4575: 4572: 4571: 4568: 4567: 4565: 4564: 4559: 4554: 4549: 4543: 4541: 4535: 4534: 4532: 4531: 4515: 4509: 4507: 4501: 4500: 4498: 4497: 4492: 4487: 4482: 4477: 4475:Semiparametric 4472: 4467: 4461: 4459: 4455: 4454: 4452: 4451: 4446: 4441: 4436: 4430: 4428: 4422: 4421: 4419: 4418: 4413: 4408: 4403: 4398: 4392: 4390: 4384: 4383: 4381: 4380: 4375: 4370: 4365: 4359: 4357: 4347: 4346: 4343: 4342: 4337: 4331: 4330: 4323: 4322: 4319: 4318: 4315: 4314: 4312: 4311: 4310: 4309: 4299: 4294: 4289: 4288: 4287: 4282: 4271: 4269: 4263: 4262: 4259: 4258: 4256: 4255: 4250: 4249: 4248: 4240: 4232: 4216: 4213:(Mann–Whitney) 4208: 4207: 4206: 4193: 4192: 4191: 4180: 4178: 4172: 4171: 4169: 4168: 4167: 4166: 4161: 4156: 4146: 4141: 4138:(Shapiro–Wilk) 4133: 4128: 4123: 4118: 4113: 4105: 4099: 4097: 4091: 4090: 4088: 4087: 4079: 4070: 4058: 4052: 4050:Specific tests 4046: 4045: 4042: 4041: 4039: 4038: 4033: 4028: 4022: 4020: 4014: 4013: 4011: 4010: 4005: 4004: 4003: 3993: 3992: 3991: 3981: 3975: 3973: 3967: 3966: 3964: 3963: 3962: 3961: 3956: 3946: 3941: 3936: 3931: 3926: 3920: 3918: 3912: 3911: 3909: 3908: 3903: 3902: 3901: 3896: 3895: 3894: 3889: 3874: 3873: 3872: 3867: 3862: 3857: 3846: 3844: 3835: 3829: 3828: 3826: 3825: 3820: 3815: 3814: 3813: 3803: 3798: 3797: 3796: 3786: 3785: 3784: 3779: 3774: 3764: 3759: 3754: 3753: 3752: 3747: 3742: 3726: 3725: 3724: 3719: 3714: 3704: 3703: 3702: 3697: 3687: 3686: 3685: 3675: 3674: 3673: 3663: 3658: 3653: 3647: 3645: 3635: 3634: 3629: 3622: 3621: 3618: 3617: 3614: 3613: 3611: 3610: 3605: 3600: 3595: 3589: 3587: 3581: 3580: 3578: 3577: 3572: 3567: 3561: 3559: 3555: 3554: 3552: 3551: 3546: 3541: 3536: 3531: 3526: 3521: 3515: 3513: 3507: 3506: 3504: 3503: 3501:Standard error 3498: 3493: 3488: 3487: 3486: 3481: 3470: 3468: 3462: 3461: 3459: 3458: 3453: 3448: 3443: 3438: 3433: 3431:Optimal design 3428: 3423: 3417: 3415: 3405: 3404: 3399: 3392: 3391: 3388: 3387: 3384: 3383: 3381: 3380: 3375: 3370: 3365: 3360: 3355: 3350: 3345: 3340: 3335: 3330: 3325: 3320: 3315: 3310: 3304: 3302: 3296: 3295: 3293: 3292: 3287: 3286: 3285: 3280: 3270: 3265: 3259: 3257: 3251: 3250: 3248: 3247: 3242: 3237: 3231: 3229: 3228:Summary tables 3225: 3224: 3222: 3221: 3215: 3213: 3207: 3206: 3203: 3202: 3200: 3199: 3198: 3197: 3192: 3187: 3177: 3171: 3169: 3163: 3162: 3160: 3159: 3154: 3149: 3144: 3139: 3134: 3129: 3123: 3121: 3115: 3114: 3112: 3111: 3106: 3101: 3100: 3099: 3094: 3089: 3084: 3079: 3074: 3069: 3064: 3062:Contraharmonic 3059: 3054: 3043: 3041: 3032: 3022: 3021: 3016: 3009: 3008: 3006: 3005: 3000: 2994: 2991: 2990: 2985: 2983: 2982: 2975: 2968: 2960: 2954: 2953: 2946: 2945:External links 2943: 2942: 2941: 2935: 2916: 2913: 2910: 2909: 2898:juliastats.org 2885: 2861: 2837: 2826:docs.scipy.org 2813: 2792: 2774: 2735: 2708: 2697:(6): 685–691. 2681: 2674: 2656: 2647: 2640: 2612: 2605: 2587: 2576: 2557: 2538: 2525: 2497: 2486:(3): 241–252. 2467: 2460: 2442: 2435: 2409: 2379: 2378: 2376: 2373: 2372: 2371: 2366: 2361: 2356: 2351: 2346: 2339: 2336: 2335: 2334: 2321:, the package 2315: 2312:Apache Commons 2305: 2295: 2262: 2261:Implementation 2259: 2258: 2257: 2254: 2065: 1941: 1917: 1914: 1912: 1909: 1896: 1884: 1876: 1870: 1867: 1866: 1865: 1852: 1833: 1830: 1827: 1805: 1800: 1797: 1794: 1791: 1788: 1784: 1759: 1733: 1729: 1708: 1705: 1702: 1678: 1658: 1636: 1632: 1611: 1589: 1585: 1564: 1553: 1541: 1521: 1498: 1495: 1470: 1467: 1462: 1456: 1453: 1431: 1422:{\textstyle H} 1418: 1401:{\textstyle i} 1397: 1375: 1371: 1354:{\textstyle G} 1350: 1327: 1324: 1319: 1315: 1309: 1304: 1300: 1296: 1291: 1286: 1282: 1278: 1273: 1268: 1265: 1262: 1258: 1251: 1248: 1228: 1217: 1216: 1215: 1198: 1195: 1192: 1189: 1186: 1183: 1177: 1172: 1167: 1164: 1157: 1154: 1145: 1141: 1135: 1130: 1127: 1124: 1120: 1113: 1110: 1107: 1104: 1101: 1098: 1094: 1089: 1086: 1084: 1082: 1077: 1072: 1066: 1062: 1059: 1056: 1050: 1045: 1042: 1035: 1032: 1024: 1017: 1013: 1007: 1002: 999: 996: 992: 985: 982: 979: 976: 973: 970: 966: 961: 958: 956: 954: 951: 950: 925: 921: 918: 915: 908: 902: 899: 876: 872: 868: 865: 862: 859: 856: 853: 850: 847: 844: 841: 838: 818: 807: 806: 805: 790: 787: 783: 761: 758: 755: 752: 749: 743: 740: 734: 726: 723: 708: 697: 673: 669: 661: 658: 654: 645: 641: 635: 632: 629: 625: 618: 611: 608: 601: 598: 582: 571: 551: 528: 525: 521: 509: 498: 475: 471: 459: 446: 435: 422: 410: 409: 397: 389: 385: 376: 373: 365: 358: 355: 351: 345: 337: 333: 326: 323: 320: 316: 309: 303: 300: 297: 293: 285: 281: 272: 269: 261: 254: 251: 244: 241: 232: 225: 221: 212: 206: 203: 200: 196: 189: 186: 183: 178: 173: 170: 167: 154: 131: 128: 80:non-parametric 53: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 5314: 5303: 5300: 5298: 5295: 5293: 5290: 5289: 5287: 5272: 5271: 5262: 5260: 5259: 5250: 5248: 5247: 5242: 5236: 5234: 5233: 5224: 5223: 5220: 5206: 5203: 5201: 5200:Geostatistics 5198: 5196: 5193: 5191: 5188: 5186: 5183: 5182: 5180: 5178: 5174: 5168: 5167:Psychometrics 5165: 5163: 5160: 5158: 5155: 5153: 5150: 5148: 5145: 5143: 5140: 5138: 5135: 5133: 5130: 5128: 5125: 5123: 5120: 5119: 5117: 5115: 5111: 5105: 5102: 5100: 5097: 5095: 5091: 5088: 5086: 5083: 5081: 5078: 5076: 5073: 5072: 5070: 5068: 5064: 5058: 5055: 5053: 5050: 5048: 5044: 5041: 5039: 5036: 5035: 5033: 5031: 5030:Biostatistics 5027: 5023: 5019: 5014: 5010: 4992: 4991:Log-rank test 4989: 4988: 4986: 4982: 4976: 4973: 4972: 4970: 4968: 4964: 4958: 4955: 4953: 4950: 4948: 4945: 4943: 4940: 4939: 4937: 4935: 4931: 4928: 4926: 4922: 4912: 4909: 4907: 4904: 4902: 4899: 4897: 4894: 4892: 4889: 4888: 4886: 4884: 4880: 4874: 4871: 4869: 4866: 4864: 4862:(Box–Jenkins) 4858: 4856: 4853: 4851: 4848: 4844: 4841: 4840: 4839: 4836: 4835: 4833: 4831: 4827: 4821: 4818: 4816: 4815:Durbin–Watson 4813: 4811: 4805: 4803: 4800: 4798: 4797:Dickey–Fuller 4795: 4794: 4792: 4788: 4782: 4779: 4777: 4774: 4772: 4771:Cointegration 4769: 4767: 4764: 4762: 4759: 4757: 4754: 4752: 4749: 4747: 4746:Decomposition 4744: 4743: 4741: 4737: 4734: 4732: 4728: 4718: 4715: 4714: 4713: 4710: 4709: 4708: 4705: 4701: 4698: 4697: 4696: 4693: 4691: 4688: 4686: 4683: 4681: 4678: 4676: 4673: 4671: 4668: 4666: 4663: 4661: 4658: 4657: 4655: 4653: 4649: 4643: 4640: 4638: 4635: 4633: 4630: 4628: 4625: 4623: 4620: 4618: 4617:Cohen's kappa 4615: 4614: 4612: 4610: 4606: 4602: 4598: 4594: 4590: 4586: 4581: 4577: 4563: 4560: 4558: 4555: 4553: 4550: 4548: 4545: 4544: 4542: 4540: 4536: 4530: 4526: 4522: 4516: 4514: 4511: 4510: 4508: 4506: 4502: 4496: 4493: 4491: 4488: 4486: 4483: 4481: 4478: 4476: 4473: 4471: 4470:Nonparametric 4468: 4466: 4463: 4462: 4460: 4456: 4450: 4447: 4445: 4442: 4440: 4437: 4435: 4432: 4431: 4429: 4427: 4423: 4417: 4414: 4412: 4409: 4407: 4404: 4402: 4399: 4397: 4394: 4393: 4391: 4389: 4385: 4379: 4376: 4374: 4371: 4369: 4366: 4364: 4361: 4360: 4358: 4356: 4352: 4348: 4341: 4338: 4336: 4333: 4332: 4328: 4324: 4308: 4305: 4304: 4303: 4300: 4298: 4295: 4293: 4290: 4286: 4283: 4281: 4278: 4277: 4276: 4273: 4272: 4270: 4268: 4264: 4254: 4251: 4247: 4241: 4239: 4233: 4231: 4225: 4224: 4223: 4220: 4219:Nonparametric 4217: 4215: 4209: 4205: 4202: 4201: 4200: 4194: 4190: 4189:Sample median 4187: 4186: 4185: 4182: 4181: 4179: 4177: 4173: 4165: 4162: 4160: 4157: 4155: 4152: 4151: 4150: 4147: 4145: 4142: 4140: 4134: 4132: 4129: 4127: 4124: 4122: 4119: 4117: 4114: 4112: 4110: 4106: 4104: 4101: 4100: 4098: 4096: 4092: 4086: 4084: 4080: 4078: 4076: 4071: 4069: 4064: 4060: 4059: 4056: 4053: 4051: 4047: 4037: 4034: 4032: 4029: 4027: 4024: 4023: 4021: 4019: 4015: 4009: 4006: 4002: 3999: 3998: 3997: 3994: 3990: 3987: 3986: 3985: 3982: 3980: 3977: 3976: 3974: 3972: 3968: 3960: 3957: 3955: 3952: 3951: 3950: 3947: 3945: 3942: 3940: 3937: 3935: 3932: 3930: 3927: 3925: 3922: 3921: 3919: 3917: 3913: 3907: 3904: 3900: 3897: 3893: 3890: 3888: 3885: 3884: 3883: 3880: 3879: 3878: 3875: 3871: 3868: 3866: 3863: 3861: 3858: 3856: 3853: 3852: 3851: 3848: 3847: 3845: 3843: 3839: 3836: 3834: 3830: 3824: 3821: 3819: 3816: 3812: 3809: 3808: 3807: 3804: 3802: 3799: 3795: 3794:loss function 3792: 3791: 3790: 3787: 3783: 3780: 3778: 3775: 3773: 3770: 3769: 3768: 3765: 3763: 3760: 3758: 3755: 3751: 3748: 3746: 3743: 3741: 3735: 3732: 3731: 3730: 3727: 3723: 3720: 3718: 3715: 3713: 3710: 3709: 3708: 3705: 3701: 3698: 3696: 3693: 3692: 3691: 3688: 3684: 3681: 3680: 3679: 3676: 3672: 3669: 3668: 3667: 3664: 3662: 3659: 3657: 3654: 3652: 3649: 3648: 3646: 3644: 3640: 3636: 3632: 3627: 3623: 3609: 3606: 3604: 3601: 3599: 3596: 3594: 3591: 3590: 3588: 3586: 3582: 3576: 3573: 3571: 3568: 3566: 3563: 3562: 3560: 3556: 3550: 3547: 3545: 3542: 3540: 3537: 3535: 3532: 3530: 3527: 3525: 3522: 3520: 3517: 3516: 3514: 3512: 3508: 3502: 3499: 3497: 3496:Questionnaire 3494: 3492: 3489: 3485: 3482: 3480: 3477: 3476: 3475: 3472: 3471: 3469: 3467: 3463: 3457: 3454: 3452: 3449: 3447: 3444: 3442: 3439: 3437: 3434: 3432: 3429: 3427: 3424: 3422: 3419: 3418: 3416: 3414: 3410: 3406: 3402: 3397: 3393: 3379: 3376: 3374: 3371: 3369: 3366: 3364: 3361: 3359: 3356: 3354: 3351: 3349: 3346: 3344: 3341: 3339: 3336: 3334: 3331: 3329: 3326: 3324: 3323:Control chart 3321: 3319: 3316: 3314: 3311: 3309: 3306: 3305: 3303: 3301: 3297: 3291: 3288: 3284: 3281: 3279: 3276: 3275: 3274: 3271: 3269: 3266: 3264: 3261: 3260: 3258: 3256: 3252: 3246: 3243: 3241: 3238: 3236: 3233: 3232: 3230: 3226: 3220: 3217: 3216: 3214: 3212: 3208: 3196: 3193: 3191: 3188: 3186: 3183: 3182: 3181: 3178: 3176: 3173: 3172: 3170: 3168: 3164: 3158: 3155: 3153: 3150: 3148: 3145: 3143: 3140: 3138: 3135: 3133: 3130: 3128: 3125: 3124: 3122: 3120: 3116: 3110: 3107: 3105: 3102: 3098: 3095: 3093: 3090: 3088: 3085: 3083: 3080: 3078: 3075: 3073: 3070: 3068: 3065: 3063: 3060: 3058: 3055: 3053: 3050: 3049: 3048: 3045: 3044: 3042: 3040: 3036: 3033: 3031: 3027: 3023: 3019: 3014: 3010: 3004: 3001: 2999: 2996: 2995: 2992: 2988: 2981: 2976: 2974: 2969: 2967: 2962: 2961: 2958: 2952: 2949: 2948: 2944: 2938: 2936:0-534-91976-6 2932: 2928: 2924: 2919: 2918: 2914: 2899: 2895: 2889: 2886: 2875: 2871: 2865: 2862: 2851: 2847: 2841: 2838: 2827: 2823: 2817: 2814: 2809: 2803: 2795: 2789: 2785: 2778: 2775: 2770: 2764: 2756: 2752: 2748: 2747: 2739: 2736: 2732: 2728: 2725: 2719: 2712: 2709: 2704: 2700: 2696: 2692: 2685: 2682: 2677: 2671: 2667: 2660: 2657: 2651: 2648: 2643: 2637: 2633: 2629: 2625: 2624: 2616: 2613: 2608: 2602: 2598: 2591: 2588: 2580: 2577: 2572: 2568: 2561: 2558: 2553: 2549: 2542: 2539: 2535: 2529: 2526: 2511: 2504: 2502: 2498: 2493: 2489: 2485: 2481: 2480:Technometrics 2474: 2472: 2468: 2463: 2457: 2453: 2446: 2443: 2438: 2436:9780470454619 2432: 2428: 2423: 2422: 2413: 2410: 2405: 2401: 2397: 2393: 2392: 2384: 2381: 2374: 2370: 2367: 2365: 2362: 2360: 2359:Friedman test 2357: 2355: 2352: 2350: 2347: 2345: 2344:One-way ANOVA 2342: 2341: 2337: 2332: 2320: 2316: 2313: 2309: 2306: 2299: 2296: 2293: 2290: 2280: 2276: 2272: 2271: 2270: 2268: 2260: 2255: 2252: 2251: 2250: 2063: 1939: 1936: 1934: 1929: 1915: 1910: 1908: 1894: 1882: 1877: 1875: 1868: 1863: 1858: 1853: 1850: 1846: 1831: 1828: 1825: 1803: 1798: 1795: 1792: 1789: 1786: 1782: 1773: 1757: 1749: 1731: 1727: 1706: 1703: 1700: 1692: 1676: 1656: 1634: 1630: 1609: 1587: 1583: 1562: 1554: 1519: 1493: 1465: 1460: 1451: 1440: 1436: 1432: 1429: 1416: 1395: 1373: 1369: 1348: 1325: 1322: 1317: 1313: 1302: 1298: 1294: 1289: 1284: 1280: 1271: 1266: 1263: 1260: 1256: 1249: 1246: 1226: 1218: 1193: 1190: 1187: 1181: 1175: 1170: 1165: 1162: 1152: 1143: 1139: 1133: 1128: 1125: 1122: 1118: 1108: 1105: 1102: 1096: 1092: 1087: 1085: 1075: 1070: 1064: 1060: 1057: 1054: 1048: 1043: 1040: 1030: 1022: 1015: 1011: 1005: 1000: 997: 994: 990: 980: 977: 974: 968: 964: 959: 957: 952: 941: 940: 923: 919: 916: 913: 906: 897: 874: 870: 863: 860: 857: 851: 845: 842: 839: 816: 808: 788: 785: 781: 756: 753: 750: 741: 738: 732: 721: 709: 695: 671: 667: 659: 656: 652: 643: 639: 633: 630: 627: 623: 616: 609: 606: 596: 583: 569: 549: 526: 523: 519: 510: 496: 473: 469: 460: 444: 436: 420: 412: 411: 395: 387: 371: 363: 356: 353: 349: 335: 331: 324: 321: 318: 314: 307: 301: 298: 295: 291: 283: 267: 259: 252: 249: 239: 223: 219: 210: 204: 201: 198: 194: 184: 181: 176: 168: 165: 158: 157: 155: 151: 142: 141: 136: 129: 127: 125: 120: 114: 112: 108: 103: 98: 96: 92: 90: 87:Mann–Whitney 84: 81: 77: 73: 69: 66:(named after 65: 51: 41: 32: 19: 5268: 5256: 5237: 5230: 5142:Econometrics 5092: / 5075:Chemometrics 5052:Epidemiology 5045: / 5018:Applications 4860:ARIMA model 4807:Q-statistic 4756:Stationarity 4652:Multivariate 4595: / 4591: / 4589:Multivariate 4587: / 4527: / 4523: / 4297:Bayes factor 4226: 4196:Signed rank 4108: 4082: 4074: 4062: 3757:Completeness 3593:Cohort study 3491:Opinion poll 3426:Missing data 3413:Study design 3368:Scatter plot 3290:Scatter plot 3283:Spearman's ρ 3245:Grouped data 2926: 2901:. Retrieved 2897: 2888: 2877:. Retrieved 2873: 2864: 2853:. Retrieved 2849: 2840: 2829:. Retrieved 2825: 2816: 2783: 2777: 2763:cite journal 2744: 2738: 2717: 2711: 2694: 2690: 2684: 2665: 2659: 2650: 2622: 2615: 2596: 2590: 2579: 2560: 2541: 2533: 2528: 2517:. Retrieved 2483: 2479: 2451: 2445: 2420: 2412: 2395: 2389: 2383: 2302:kruskal.test 2288: 2264: 2248: 2061: 1943:kruskal.test 1937: 1930: 1926:kruskal.test 1919: 1886: 1880: 1872: 1856: 1849:significance 1435:type I error 1409: 149: 124:ANOVA F-test 115: 107:Mann–Whitney 99: 88: 75: 43: 39: 37: 5270:WikiProject 5185:Cartography 5147:Jurimetrics 5099:Reliability 4830:Time domain 4809:(Ljung–Box) 4731:Time-series 4609:Categorical 4593:Time-series 4585:Categorical 4520:(Bernoulli) 4355:Correlation 4335:Correlation 4131:Jarque–Bera 4103:Chi-squared 3865:M-estimator 3818:Asymptotics 3762:Sufficiency 3529:Interaction 3441:Replication 3421:Effect size 3378:Violin plot 3358:Radar chart 3338:Forest plot 3328:Correlogram 3278:Kendall's τ 2536:Holden-Day. 2267:open source 2112:comparisons 829:is exactly 562:from group 109:tests with 5286:Categories 5137:Demography 4855:ARMA model 4660:Regression 4237:(Friedman) 4198:(Wilcoxon) 4136:Normality 4126:Lilliefors 4073:Student's 3949:Resampling 3823:Robustness 3811:divergence 3801:Efficiency 3739:(monotone) 3734:Likelihood 3651:Population 3484:Stratified 3436:Population 3255:Dependence 3211:Count data 3142:Percentile 3119:Dispersion 3052:Arithmetic 2987:Statistics 2903:2023-12-06 2879:2023-12-06 2855:2023-12-06 2831:2023-12-06 2793:053498052X 2519:2016-10-28 2461:0070573573 2375:References 2244:bonferroni 2235:adjustment 2148:airquality 2136:airquality 2085:airquality 2073:airquality 1967:airquality 1922:airquality 42:by ranks, 4518:Logistic 4285:posterior 4211:Rank sum 3959:Jackknife 3954:Bootstrap 3772:Bootstrap 3707:Parameter 3656:Statistic 3451:Statistic 3363:Run chart 3348:Pie chart 3343:Histogram 3333:Fan chart 3308:Bar chart 3190:L-moments 3077:Geometric 2802:cite book 2057:6.901e-06 1829:− 1796:− 1787:α 1783:χ 1704:− 1540:k 1520:α 1497:¯ 1469:k 1466:α 1455:¯ 1323:− 1295:− 1257:∑ 1250:− 1176:− 1166:⋅ 1156:¯ 1119:∑ 1049:− 1044:⋅ 1034:¯ 991:∑ 901:¯ 843:− 725:¯ 624:∑ 610:⋅ 600:¯ 375:¯ 364:− 315:∑ 292:∑ 271:¯ 260:− 253:⋅ 243:¯ 195:∑ 182:− 117:assume a 97:(ANOVA). 5232:Category 4925:Survival 4802:Johansen 4525:Binomial 4480:Isotonic 4067:(normal) 3712:location 3519:Blocking 3474:Sampling 3353:Q–Q plot 3318:Box plot 3300:Graphics 3195:Skewness 3185:Kurtosis 3157:Variance 3087:Heronian 3082:Harmonic 2727:Archived 2338:See also 2118:Wilcoxon 2109:Pairwise 1857:post hoc 1483:, where 1341:, where 5258:Commons 5205:Kriging 5090:Process 5047:studies 4906:Wavelet 4739:General 3906:Plug-in 3700:L space 3479:Cluster 3180:Moments 2998:Outline 2331:p-value 2021:squared 2006:Kruskal 1973:Kruskal 1911:Example 939:. Thus 5127:Census 4717:Normal 4665:Manova 4485:Robust 4235:2-way 4227:1-way 4065:-test 3736:  3313:Biplot 3104:Median 3097:Lehmer 3039:Center 2933:  2790:  2672:  2638:  2603:  2458:  2433:  2429:–105. 2292:-value 2275:Python 2238:method 2226:0.0325 2223:0.0074 2220:1.0000 2217:1.0000 2208:1.0000 2205:0.2591 2202:0.0012 2190:0.1414 2187:0.0003 2172:1.0000 2027:29.267 2012:Wallis 1979:Wallis 1179:  130:Method 74:), or 4751:Trend 4280:prior 4222:anova 4111:-test 4085:-test 4077:-test 3984:Power 3929:Pivot 3722:shape 3717:scale 3167:Shape 3147:Range 3092:Heinz 3067:Cubic 3003:Index 2513:(PDF) 2319:Julia 2279:SciPy 2232:value 2154:Month 2142:Ozone 2115:using 2091:Month 2079:Ozone 2051:value 2003:Month 1997:Ozone 1955:Month 1949:Ozone 1693:with 408:where 78:is a 4984:Test 4184:Sign 4036:Wald 3109:Mode 3047:Mean 2931:ISBN 2808:link 2788:ISBN 2769:link 2670:ISBN 2636:ISBN 2601:ISBN 2456:ISBN 2431:ISBN 2308:Java 2130:data 2127:test 2121:rank 1991:data 1988:test 1982:rank 1961:data 887:and 91:test 70:and 64:test 38:The 4164:BIC 4159:AIC 2751:doi 2699:doi 2628:doi 2567:doi 2548:doi 2488:doi 2400:doi 2317:In 2277:'s 2273:In 2145:and 2124:sum 2015:chi 1985:sum 1750:of 1239:by 147:to 5288:: 2925:. 2896:. 2872:. 2848:. 2824:. 2804:}} 2800:{{ 2765:}} 2761:{{ 2695:15 2693:. 2634:. 2500:^ 2482:. 2470:^ 2427:99 2396:47 2394:. 2151:$ 2139:$ 2088:$ 2076:$ 2033:df 2000:by 1093:12 965:12 875:12 4109:G 4083:F 4075:t 4063:Z 3782:V 3777:U 2979:e 2972:t 2965:v 2939:. 2906:. 2882:. 2858:. 2834:. 2810:) 2796:. 2771:) 2757:. 2753:: 2720:. 2705:. 2701:: 2678:. 2644:. 2630:: 2609:. 2573:. 2569:: 2554:. 2550:: 2522:. 2494:. 2490:: 2484:6 2464:. 2439:. 2406:. 2402:: 2333:. 2314:. 2304:. 2298:R 2294:. 2289:p 2241:: 2229:P 2214:9 2211:- 2199:8 2196:- 2193:- 2184:7 2181:- 2178:- 2175:- 2169:6 2166:8 2163:7 2160:6 2157:5 2133:: 2106:) 2100:= 2094:, 2082:, 2070:( 2054:= 2048:- 2045:p 2042:, 2039:4 2036:= 2030:, 2024:= 2018:- 2009:- 1994:: 1976:- 1970:) 1964:= 1958:, 1952:~ 1946:( 1895:H 1881:H 1864:. 1832:1 1826:g 1804:2 1799:1 1793:g 1790:: 1758:H 1732:i 1728:n 1707:1 1701:g 1677:H 1657:H 1635:c 1631:H 1610:H 1588:c 1584:H 1563:H 1494:a 1461:= 1452:a 1417:H 1396:i 1374:i 1370:t 1349:G 1326:N 1318:3 1314:N 1308:) 1303:i 1299:t 1290:3 1285:i 1281:t 1277:( 1272:G 1267:1 1264:= 1261:i 1247:1 1227:H 1197:) 1194:1 1191:+ 1188:N 1185:( 1182:3 1171:2 1163:i 1153:r 1144:i 1140:n 1134:g 1129:1 1126:= 1123:i 1112:) 1109:1 1106:+ 1103:N 1100:( 1097:N 1088:= 1076:2 1071:) 1065:2 1061:1 1058:+ 1055:N 1041:i 1031:r 1023:( 1016:i 1012:n 1006:g 1001:1 998:= 995:i 984:) 981:1 978:+ 975:N 972:( 969:N 960:= 953:H 924:2 920:1 917:+ 914:N 907:= 898:r 871:/ 867:) 864:1 861:+ 858:N 855:( 852:N 849:) 846:1 840:N 837:( 817:H 804:. 789:j 786:i 782:r 760:) 757:1 754:+ 751:N 748:( 742:2 739:1 733:= 722:r 696:i 672:i 668:n 660:j 657:i 653:r 644:i 640:n 634:1 631:= 628:j 617:= 607:i 597:r 570:i 550:j 527:j 524:i 520:r 497:i 474:i 470:n 445:g 421:N 396:, 388:2 384:) 372:r 357:j 354:i 350:r 344:( 336:i 332:n 325:1 322:= 319:j 308:g 302:1 299:= 296:i 284:2 280:) 268:r 250:i 240:r 231:( 224:i 220:n 211:g 205:1 202:= 199:i 188:) 185:1 177:N 172:( 169:= 166:H 150:N 145:1 89:U 52:H 20:)

Index

Kruskal-Wallis test

William Kruskal
W. Allen Wallis
non-parametric
statistical test
Mann–Whitney U test
one-way analysis of variance
stochastically dominates
Mann–Whitney
Bonferroni correction
normal distribution
ANOVA F-test

type I error
Bonferroni procedure
chi-squared distribution
probability distribution
chi-squared distribution
degrees of freedom
significance
multiple comparisons

open source
Python
SciPy
p-value
R
Java
Apache Commons

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