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Power transform

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2354: 3984: 2007: 1509: 2058: 3619: 2815: 318: 1764: 1189: 2349:{\displaystyle \tau (y_{i};\lambda ,\alpha )={\begin{cases}{\dfrac {\operatorname {sgn} (y_{i}+\alpha )|y_{i}+\alpha |^{\lambda }-1}{\lambda (\operatorname {GM} (y+\alpha ))^{\lambda -1}}}&{\text{if }}\lambda \neq 0,\\\\\operatorname {GM} (y+\alpha )\operatorname {sgn} (y+\alpha )\ln(y_{i}+\alpha )&{\text{if }}\lambda =0,\end{cases}}} 3979:{\displaystyle y_{i}^{(\lambda )}={\begin{cases}((y_{i}+1)^{\lambda }-1)/\lambda &{\text{if }}\lambda \neq 0,y\geq 0\\\ln(y_{i}+1)&{\text{if }}\lambda =0,y\geq 0\\-((-y_{i}+1)^{(2-\lambda )}-1)/(2-\lambda )&{\text{if }}\lambda \neq 2,y<0\\-\ln(-y_{i}+1)&{\text{if }}\lambda =2,y<0\end{cases}}} 2593: 1174: 2604: 124: 3139:
Possibly, the transformation could be improved by adding a shift parameter to the log transformation. Panel (c) of the figure shows the log-likelihood. In this case, the maximum of the likelihood is close to zero suggesting that a shift parameter is not needed. The final panel shows the transformed
2002:{\displaystyle \tau (y_{i};\lambda ,\alpha )={\begin{cases}{\dfrac {(y_{i}+\alpha )^{\lambda }-1}{\lambda (\operatorname {GM} (y+\alpha ))^{\lambda -1}}}&{\text{if }}\lambda \neq 0,\\\\\operatorname {GM} (y+\alpha )\ln(y_{i}+\alpha )&{\text{if }}\lambda =0,\end{cases}}} 3104: 1504:{\displaystyle {\begin{aligned}\log({\mathcal {L}}({\hat {\mu }},{\hat {\sigma }}))&=(-n/2)(\log(2\pi {\hat {\sigma }}^{2})+1)+n(\lambda -1)\log(\operatorname {GM} (y))\\&=(-n/2)(\log(2\pi {\hat {\sigma }}^{2}/\operatorname {GM} (y)^{2(\lambda -1)})+1).\end{aligned}}} 460: 3143:
Note that although Box–Cox transformations can make big improvements in model fit, there are some issues that the transformation cannot help with. In the current example, the data are rather heavy-tailed so that the assumption of normality is not realistic and a
687: 2452: 3360: 2810:{\displaystyle y_{i}^{({\boldsymbol {\lambda }})}={\begin{cases}{\dfrac {(y_{i}+\lambda _{2})^{\lambda _{1}}-1}{\lambda _{1}}}&{\text{if }}\lambda _{1}\neq 0,\\\ln(y_{i}+\lambda _{2})&{\text{if }}\lambda _{1}=0,\end{cases}}} 964: 313:{\displaystyle y_{i}^{(\lambda )}={\begin{cases}{\dfrac {y_{i}^{\lambda }-1}{\lambda (\operatorname {GM} (y))^{\lambda -1}}},&{\text{if }}\lambda \neq 0\\\operatorname {GM} (y)\ln {y_{i}},&{\text{if }}\lambda =0\end{cases}}} 780: 2437:
can substantially underestimate the variance when parameter values are small relative to the noise variance. However, this problem of underestimating the variance may not be a substantive problem in many applications.
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resource pages contain a number of hands-on interactive activities demonstrating the Box–Cox (power) transformation using Java applets and charts. These directly illustrate the effects of this transform on
3253: 2969: 1194: 3122:. Suppose we are interested in using log(γGT) to predict ALT. A plot of the data appears in panel (a) of the figure. There appears to be non-constant variance, and a Box–Cox transformation might help. 1566: 4148:
Peters, J. L.; Rushton, L.; Sutton, A. J.; Jones, D. R.; Abrams, K. R.; Mugglestone, M. A. (2005). "Bayesian methods for the cross-design synthesis of epidemiological and toxicological evidence".
953: 329: 3508: 2420: 3441: 1695: 2894: 1602: 534: 1644: 887: 4527: 2588:{\displaystyle y_{i}^{(\lambda )}={\begin{cases}{\dfrac {y_{i}^{\lambda }-1}{\lambda }}&{\text{if }}\lambda \neq 0,\\\ln y_{i}&{\text{if }}\lambda =0,\end{cases}}} 3611: 3136:/2 from the maximum and can be used to read off an approximate 95% confidence interval for λ. It appears as though a value close to zero would be good, so we take logs. 2851: 819: 509: 3585: 2961: 2917: 839: 529: 2381: 4588: 3268: 1169:{\displaystyle J(\lambda ;y_{1},\ldots ,y_{n})=\prod _{i=1}^{n}|dy_{i}^{(\lambda )}/dy|=\prod _{i=1}^{n}y_{i}^{\lambda -1}=\operatorname {GM} (y)^{n(\lambda -1)}} 59: 3565: 4428: 4756: 696: 4413: 4343: 3367: 51: 1605: 3177: 3099:{\displaystyle \ln {\big (}L(\lambda ){\big )}\geq \ln {\big (}L({\hat {\lambda }}){\big )}-{\frac {1}{2}}{\chi ^{2}}_{1,1-\alpha }.} 4464: 4449: 4020: 3127: 47: 904: 4331: 1517: 4724: 3119: 2030: 455:{\displaystyle \operatorname {GM} (y)=\left(\prod _{i=1}^{n}y_{i}\right)^{\frac {1}{n}}={\sqrt{y_{1}y_{2}\cdots y_{n}}}\,} 4617:
Handelsman, D. J. (2002). "Optimal Power Transformations for Analysis of Sperm Concentration and Other Semen Variables".
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Gao, Peisheng; Wu, Weilin (2006). "Power Quality Disturbances Classification using Wavelet and Support Vector Machines".
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Howarth, R. J.; Earle, S. A. M. (1979-02-01). "Application of a generalized power transformation to geochemical data".
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Yeo, In-Kwon; Johnson, Richard A. (2000). "A New Family of Power Transformations to Improve Normality or Symmetry".
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The log-likelihood of the power parameter appears in panel (b). The horizontal reference line is at a distance of χ
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Asar, O.; Ilk, O.; Dag, O. (2017). "Estimating Box-Cox power transformation parameter via goodness-of-fit tests".
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Howarth, R. J.; Earle, S. A. M. (1979). "Application of a generalized power transformation to geochemical data".
2386: 3392: 2038: 4522: 4293: 1653: 900: 66: 4729: 2434: 4714: 2856: 682:{\displaystyle y_{i}^{\lambda }=\exp({\lambda \ln(y_{i})})=1+\lambda \ln(y_{i})+O((\lambda \ln(y_{i}))^{2})} 157: 4225: 2045: 1571: 1758:
Box and Cox also proposed a more general form of the transformation that incorporates a shift parameter.
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Economists often characterize production relationships by some variant of the Box–Cox transformation.
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Gluzman, S.; Yukalov, V. I. (2006-01-01). "Self-similar power transforms in extrapolation problems".
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Gluzman, S.; Yukalov, V. I. (2006). "Self-similar power transforms in extrapolation problems".
4584: 4445: 4409: 4339: 4122: 4079: 4016: 3570: 3145: 2946: 2902: 824: 514: 3451: 3355:{\displaystyle Q={\big (}\alpha K^{\lambda }+(1-\alpha )N^{\lambda }{\big )}^{1/\lambda },\,} 2366: 4686: 4657: 4603: 4572: 4518: 4488: 4378: 4289: 4235: 4198: 4157: 4114: 4071: 4008: 896: 4548: 4317: 89:, typically given in piece-wise form that makes it continuous at the point of singularity ( 4544: 4313: 4186: 4653: 4067: 4007:. ISDA '06. Vol. 1. Washington, DC, USA: IEEE Computer Society. pp. 201–206. 3550: 466: 43: 17: 4745: 4698: 4669: 4261: 4169: 4161: 4134: 4091: 2360: 903:(1964) introduced the geometric mean into this transformation by first including the 690: 4390: 3524: 2820:
as described in the original article. Moreover, the first transformations hold for
4202: 4030: 1752: 74: 4382: 3532: 3528: 848: − 1)th power of the geometric mean in the denominator simplifies the 85:
The power transformation is defined as a continuous function of power parameter
69:, statistical data analysis, medical research, modeling of physical processes, 4661: 4576: 4492: 4479: 4075: 1709: 1604:
produces an expression that establishes that minimizing the sum of squares of
775:{\displaystyle {\dfrac {y_{i}^{\lambda }-1}{\lambda }}=\ln(y_{i})+O(\lambda )} 31: 4126: 4083: 4005:
Sixth International Conference on Intelligent Systems Design and Applications
4608: 4189:; Doksum, Kjell A. (June 1981). "An analysis of transformations revisited". 3536: 4736: 3547:
The Yeo–Johnson transformation allows also for zero and negative values of
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Sakia, R. M. (1992), "The Box–Cox transformation technique: a review",
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Zarembka, P. (1974). "Transformation of Variables in Econometrics".
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produces the identity transformation. The transformation law reads:
58:-like, improve the validity of measures of association (such as the 2363:. This change in definition has little practical import as long as 4373: 77:
and many other clinical, environmental and social research areas.
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Journal of the International Association for Mathematical Geology
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Journal of the International Association for Mathematical Geology
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between variables), and for other data stabilization procedures.
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Bickel and Doksum also proved that the parameter estimates are
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under appropriate regularity conditions, though the standard
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Confidence interval for the Box–Cox transformation can be
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Communications in Statistics - Simulation and Computation
4338:(Third ed.). New York: McGraw-Hill. pp. 61–74. 2446:
The one-parameter Box–Cox transformations are defined as
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Power transforms are used in multiple fields, including
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The BUPA liver data set contains data on liver enzymes
1561:{\displaystyle \operatorname {GM} (y)^{2(\lambda -1)}} 3622: 3593: 3573: 3553: 3463: 3395: 3271: 3180: 3163:
as dependent on services provided by a capital stock
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transformation, but done in such a way as to make it
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by extending the range of the transformation to all
889:, because the units of measurement do not change as 4558:"On prediction and the power transformation family" 4181: 4179: 3386:= 1, this produces the linear production function: 1724:is a version of some other variable scaled to give 1697:and the log of the Jacobian of the transformation. 958:with the likelihood. This Jacobian is as follows: 948:{\displaystyle {\frac {y^{\lambda }-1}{\lambda }}.} 850:
scientific interpretation of any equation involving
4528:Journal of the Royal Statistical Society, Series B 4298:Journal of the Royal Statistical Society, Series B 4150:Journal of the Royal Statistical Society, Series C 3978: 3605: 3579: 3559: 3502: 3435: 3354: 3247: 3098: 2955: 2911: 2888: 2845: 2809: 2587: 2414: 2375: 2348: 2001: 1689: 1646:is equivalent to maximizing the sum of the normal 1638: 1596: 1560: 1503: 1168: 947: 881: 833: 813: 774: 681: 523: 503: 454: 312: 2598:and the two-parameter Box–Cox transformations as 3262:by inverting the Box–Cox transformation we find 4191:Journal of the American Statistical Association 3159:Consider a common representation of production 2044:Bickel and Doksum eliminated the need to use a 4444:. New York: Academic Press. pp. 81–104. 3503:{\displaystyle Q=K^{\alpha }N^{1-\alpha }.\,} 3329: 3280: 3044: 3016: 3000: 2981: 38:is a family of functions applied to create a 8: 2943:function to find all the possible values of 2415:{\displaystyle \operatorname {min} (y_{i})} 4525:(1964). "An analysis of transformations". 4406:Statistical Theory: A Concise Introduction 4404:Abramovich, Felix; Ritov, Ya'acov (2013). 4296:(1964). "An analysis of transformations". 3436:{\displaystyle Q=\alpha K+(1-\alpha )N.\,} 3140:data with a superimposed regression line. 2923:function and using goodness-of-fit tests. 118: > 0, the power transform is 4643: 4607: 4372: 4229: 4057: 3943: 3926: 3877: 3855: 3828: 3812: 3766: 3749: 3706: 3696: 3681: 3665: 3647: 3632: 3627: 3621: 3592: 3572: 3552: 3499: 3484: 3474: 3462: 3432: 3394: 3351: 3338: 3334: 3328: 3327: 3320: 3292: 3279: 3278: 3270: 3244: 3179: 3075: 3068: 3063: 3052: 3043: 3042: 3028: 3027: 3015: 3014: 2999: 2998: 2980: 2979: 2971: 2948: 2904: 2880: 2864: 2858: 2831: 2825: 2785: 2776: 2765: 2752: 2720: 2711: 2700: 2681: 2676: 2666: 2653: 2642: 2634: 2621: 2617: 2612: 2606: 2561: 2553: 2522: 2501: 2496: 2488: 2480: 2465: 2460: 2454: 2403: 2388: 2368: 2322: 2305: 2226: 2208: 2163: 2158: 2145: 2136: 2121: 2104: 2096: 2072: 2060: 1975: 1958: 1900: 1882: 1837: 1821: 1810: 1802: 1778: 1766: 1690:{\displaystyle (y^{\lambda }-1)/\lambda } 1679: 1664: 1655: 1624: 1619: 1613: 1588: 1577: 1576: 1573: 1537: 1519: 1461: 1440: 1434: 1423: 1422: 1392: 1307: 1296: 1295: 1265: 1232: 1231: 1217: 1216: 1207: 1206: 1193: 1191: 1145: 1114: 1109: 1099: 1088: 1076: 1065: 1053: 1048: 1036: 1030: 1019: 1003: 984: 966: 924: 917: 915: 867: 862: 856: 826: 802: 787: 748: 713: 708: 700: 698: 670: 657: 620: 582: 565: 547: 542: 536: 516: 490: 451: 444: 437: 424: 414: 407: 393: 382: 372: 361: 331: 289: 277: 272: 233: 212: 173: 168: 160: 152: 137: 132: 126: 4284: 4282: 3148:approach leads to a more precise model. 2963:that fulfill the following restriction: 3995: 2622: 2889:{\displaystyle y_{i}>-\lambda _{2}} 531:approaches 0. To see this, note that 67:multi-resolution and wavelet analysis 27:Family of functions to transform data 7: 4556:Carroll, R. J.; Ruppert, D. (1981). 4263:Box–Cox Transformations: An Overview 1597:{\displaystyle {\hat {\sigma }}^{2}} 3368:constant elasticity of substitution 2021: + α > 0 for all  1728:= 1 at some sort of average value. 93: = 0). For data vectors ( 1639:{\displaystyle y_{i}^{(\lambda )}} 882:{\displaystyle y_{i}^{(\lambda )}} 25: 4737:Yeo-Johnson Power Transformations 4632:Journal of Mathematical Chemistry 4046:Journal of Mathematical Chemistry 3375:The CES production function is a 907:of rescaled power transformation 4589:"A Conversation with George Box" 4162:10.1111/j.1467-9876.2005.00476.x 3125: 4757:Statistical data transformation 4408:. CRC Press. pp. 121–122. 4260:Li, Fengfei (April 11, 2005), 4203:10.1080/01621459.1981.10477649 3938: 3916: 3872: 3860: 3852: 3841: 3829: 3825: 3802: 3799: 3761: 3742: 3693: 3678: 3658: 3655: 3639: 3633: 3587:can be any real number, where 3423: 3411: 3313: 3301: 3238: 3232: 3226: 3214: 3208: 3202: 3190: 3184: 3039: 3033: 3024: 2995: 2989: 2771: 2745: 2673: 2646: 2626: 2618: 2472: 2466: 2409: 2396: 2317: 2298: 2289: 2277: 2268: 2256: 2205: 2201: 2189: 2180: 2159: 2137: 2133: 2114: 2090: 2065: 1970: 1951: 1942: 1930: 1879: 1875: 1863: 1854: 1834: 1814: 1796: 1771: 1747:= 0. It has proved popular in 1676: 1657: 1631: 1625: 1582: 1553: 1541: 1534: 1527: 1491: 1482: 1477: 1465: 1458: 1451: 1428: 1412: 1403: 1400: 1383: 1370: 1367: 1361: 1352: 1343: 1331: 1322: 1313: 1301: 1285: 1276: 1273: 1256: 1246: 1243: 1237: 1222: 1213: 1203: 1161: 1149: 1142: 1135: 1077: 1060: 1054: 1037: 1009: 971: 874: 868: 808: 795: 769: 763: 754: 741: 676: 667: 663: 650: 638: 635: 626: 613: 592: 588: 575: 562: 345: 339: 263: 257: 209: 205: 199: 190: 144: 138: 1: 4465:Power Transform Family Graphs 3514:Activities and demonstrations 3450:→ 0 this produces the famous 2031:truncated normal distribution 1181:log likelihood at its maximum 4383:10.1080/03610918.2014.957839 4720:Encyclopedia of Mathematics 4429:BUPA liver disorder dataset 4773: 3606:{\displaystyle \lambda =1} 3543:Yeo–Johnson transformation 2933:asymptotically constructed 2846:{\displaystyle y_{i}>0} 1183:to be written as follows: 814:{\displaystyle \ln(y_{i})} 504:{\displaystyle \lambda =0} 4662:10.1007/s10910-005-9003-7 4442:Frontiers in Econometrics 4076:10.1007/s10910-005-9003-7 71:geochemical data analysis 4715:"Box–Cox transformation" 3580:{\displaystyle \lambda } 2956:{\displaystyle \lambda } 2912:{\displaystyle \lambda } 1731:The transformation is a 1568:into the expression for 834:{\displaystyle \lambda } 524:{\displaystyle \lambda } 40:monotonic transformation 4577:10.1093/biomet/68.3.609 4493:10.1093/biomet/87.4.954 3152:Econometric application 2919:is estimated using the 2422:, which it usually is. 2376:{\displaystyle \alpha } 1179:This allows the normal 821:becomes negligible for 3980: 3607: 3581: 3561: 3504: 3437: 3365:which is known as the 3356: 3249: 3100: 2957: 2913: 2890: 2847: 2811: 2589: 2442:Box–Cox transformation 2435:Cramér–Rao lower bound 2416: 2377: 2350: 2046:truncated distribution 2003: 1691: 1640: 1598: 1562: 1505: 1170: 1104: 1035: 949: 883: 844:The inclusion of the ( 835: 815: 776: 683: 525: 505: 456: 377: 314: 18:Box–Cox transformation 4609:10.1214/ss/1177013223 4013:10.1109/ISDA.2006.217 3981: 3608: 3582: 3562: 3505: 3454:production function: 3438: 3372:production function. 3357: 3250: 3101: 2958: 2914: 2891: 2853:, and the second for 2848: 2812: 2590: 2431:asymptotically normal 2417: 2378: 2351: 2004: 1692: 1641: 1599: 1563: 1514:From here, absorbing 1506: 1171: 1084: 1015: 950: 884: 836: 816: 782:, and everything but 777: 684: 526: 506: 457: 357: 315: 54:, make the data more 4713:Nishii, R. (2001) , 4619:Journal of Andrology 3620: 3591: 3571: 3551: 3461: 3393: 3377:homogeneous function 3269: 3178: 2970: 2947: 2903: 2857: 2824: 2605: 2453: 2387: 2367: 2359:where sgn(.) is the 2059: 2039:Box–Cox distribution 2037:is said to follow a 1765: 1654: 1612: 1572: 1518: 1190: 965: 914: 855: 841:sufficiently small. 825: 786: 697: 535: 515: 489: 469:of the observations 330: 125: 4752:Normal distribution 4654:2006cond.mat..6104G 4596:Statistical Science 4336:Econometric Methods 4068:2006cond.mat..6104G 3643: 3167:and by labor hours 2927:Confidence interval 2630: 2506: 2476: 1749:regression analysis 1739:with the parameter 1716:there is 1 for any 1650:of deviations from 1635: 1125: 1064: 878: 718: 552: 178: 148: 60:Pearson correlation 56:normal distribution 48:data transformation 4735:Sanford Weisberg, 4691:10.1007/BF01043245 4119:10.1007/BF01043245 3976: 3971: 3623: 3603: 3577: 3557: 3500: 3433: 3352: 3245: 3096: 2953: 2941:profile likelihood 2921:profile likelihood 2909: 2886: 2843: 2807: 2802: 2707: 2608: 2585: 2580: 2518: 2492: 2456: 2412: 2373: 2346: 2341: 2222: 2029:, λ, α) follows a 1999: 1994: 1896: 1687: 1636: 1615: 1594: 1558: 1501: 1499: 1166: 1105: 1044: 945: 879: 858: 831: 811: 772: 730: 704: 679: 538: 521: 501: 452: 310: 305: 226: 164: 128: 52:stabilize variance 50:technique used to 4519:Box, George E. P. 4415:978-1-4398-5184-5 4345:978-0-07-032685-9 4290:Box, George E. P. 3946: 3880: 3769: 3709: 3560:{\displaystyle y} 3146:robust regression 3060: 3036: 2779: 2714: 2706: 2564: 2525: 2517: 2325: 2229: 2221: 1978: 1903: 1895: 1585: 1431: 1304: 1240: 1225: 940: 729: 476:, ...,  449: 401: 292: 236: 225: 16:(Redirected from 4764: 4727: 4702: 4673: 4647: 4645:cond-mat/0606104 4626: 4613: 4611: 4593: 4580: 4562: 4552: 4505: 4504: 4474: 4468: 4462: 4456: 4455: 4437: 4431: 4426: 4420: 4419: 4401: 4395: 4394: 4376: 4356: 4350: 4349: 4328: 4322: 4321: 4286: 4277: 4276: 4275: 4274: 4268: 4257: 4251: 4250: 4233: 4218:The Statistician 4213: 4207: 4206: 4197:(374): 296–311. 4187:Bickel, Peter J. 4183: 4174: 4173: 4145: 4139: 4138: 4102: 4096: 4095: 4061: 4059:cond-mat/0606104 4041: 4035: 4034: 4000: 3985: 3983: 3982: 3977: 3975: 3974: 3947: 3944: 3931: 3930: 3881: 3878: 3859: 3845: 3844: 3817: 3816: 3770: 3767: 3754: 3753: 3710: 3707: 3700: 3686: 3685: 3670: 3669: 3642: 3631: 3612: 3610: 3609: 3604: 3586: 3584: 3583: 3578: 3566: 3564: 3563: 3558: 3509: 3507: 3506: 3501: 3495: 3494: 3479: 3478: 3442: 3440: 3439: 3434: 3361: 3359: 3358: 3353: 3347: 3346: 3342: 3333: 3332: 3325: 3324: 3297: 3296: 3284: 3283: 3254: 3252: 3251: 3246: 3129: 3105: 3103: 3102: 3097: 3092: 3091: 3074: 3073: 3072: 3061: 3053: 3048: 3047: 3038: 3037: 3029: 3020: 3019: 3004: 3003: 2985: 2984: 2962: 2960: 2959: 2954: 2918: 2916: 2915: 2910: 2895: 2893: 2892: 2887: 2885: 2884: 2869: 2868: 2852: 2850: 2849: 2844: 2836: 2835: 2816: 2814: 2813: 2808: 2806: 2805: 2790: 2789: 2780: 2777: 2770: 2769: 2757: 2756: 2725: 2724: 2715: 2712: 2708: 2705: 2704: 2695: 2688: 2687: 2686: 2685: 2671: 2670: 2658: 2657: 2644: 2629: 2625: 2616: 2594: 2592: 2591: 2586: 2584: 2583: 2565: 2562: 2558: 2557: 2526: 2523: 2519: 2513: 2505: 2500: 2490: 2475: 2464: 2421: 2419: 2418: 2413: 2408: 2407: 2382: 2380: 2379: 2374: 2355: 2353: 2352: 2347: 2345: 2344: 2326: 2323: 2310: 2309: 2246: 2230: 2227: 2223: 2220: 2219: 2218: 2175: 2168: 2167: 2162: 2150: 2149: 2140: 2126: 2125: 2106: 2077: 2076: 2008: 2006: 2005: 2000: 1998: 1997: 1979: 1976: 1963: 1962: 1920: 1904: 1901: 1897: 1894: 1893: 1892: 1849: 1842: 1841: 1826: 1825: 1812: 1783: 1782: 1712:with respect to 1696: 1694: 1693: 1688: 1683: 1669: 1668: 1645: 1643: 1642: 1637: 1634: 1623: 1603: 1601: 1600: 1595: 1593: 1592: 1587: 1586: 1578: 1567: 1565: 1564: 1559: 1557: 1556: 1510: 1508: 1507: 1502: 1500: 1481: 1480: 1444: 1439: 1438: 1433: 1432: 1424: 1396: 1376: 1312: 1311: 1306: 1305: 1297: 1269: 1242: 1241: 1233: 1227: 1226: 1218: 1212: 1211: 1175: 1173: 1172: 1167: 1165: 1164: 1124: 1113: 1103: 1098: 1080: 1069: 1063: 1052: 1040: 1034: 1029: 1008: 1007: 989: 988: 954: 952: 951: 946: 941: 936: 929: 928: 918: 888: 886: 885: 880: 877: 866: 840: 838: 837: 832: 820: 818: 817: 812: 807: 806: 781: 779: 778: 773: 753: 752: 731: 725: 717: 712: 702: 688: 686: 685: 680: 675: 674: 662: 661: 625: 624: 591: 587: 586: 551: 546: 530: 528: 527: 522: 511:is the limit as 510: 508: 507: 502: 485:. The case for 461: 459: 458: 453: 450: 448: 443: 442: 441: 429: 428: 419: 418: 408: 403: 402: 394: 392: 388: 387: 386: 376: 371: 319: 317: 316: 311: 309: 308: 293: 290: 283: 282: 281: 237: 234: 227: 224: 223: 222: 185: 177: 172: 162: 147: 136: 109:) in which each 21: 4772: 4771: 4767: 4766: 4765: 4763: 4762: 4761: 4742: 4741: 4712: 4709: 4676: 4629: 4616: 4591: 4583: 4560: 4555: 4517: 4514: 4509: 4508: 4476: 4475: 4471: 4467:, SOCR webpages 4463: 4459: 4452: 4439: 4438: 4434: 4427: 4423: 4416: 4403: 4402: 4398: 4358: 4357: 4353: 4346: 4330: 4329: 4325: 4288: 4287: 4280: 4272: 4270: 4266: 4259: 4258: 4254: 4240:10.2307/2348250 4231:10.1.1.469.7176 4215: 4214: 4210: 4185: 4184: 4177: 4147: 4146: 4142: 4104: 4103: 4099: 4043: 4042: 4038: 4023: 4002: 4001: 3997: 3992: 3970: 3969: 3941: 3922: 3904: 3903: 3875: 3824: 3808: 3793: 3792: 3764: 3745: 3733: 3732: 3704: 3677: 3661: 3648: 3618: 3617: 3589: 3588: 3569: 3568: 3549: 3548: 3545: 3516: 3480: 3470: 3459: 3458: 3391: 3390: 3379:of degree one. 3326: 3316: 3288: 3267: 3266: 3176: 3175: 3154: 3135: 3112: 3064: 3062: 2968: 2967: 2945: 2944: 2937:Wilks's theorem 2929: 2901: 2900: 2876: 2860: 2855: 2854: 2827: 2822: 2821: 2801: 2800: 2781: 2774: 2761: 2748: 2736: 2735: 2716: 2709: 2696: 2677: 2672: 2662: 2649: 2645: 2635: 2603: 2602: 2579: 2578: 2559: 2549: 2540: 2539: 2520: 2491: 2481: 2451: 2450: 2444: 2399: 2385: 2384: 2365: 2364: 2340: 2339: 2320: 2301: 2247: 2244: 2243: 2224: 2204: 2176: 2157: 2141: 2117: 2107: 2097: 2068: 2057: 2056: 2020: 2012:which holds if 1993: 1992: 1973: 1954: 1921: 1918: 1917: 1898: 1878: 1850: 1833: 1817: 1813: 1803: 1774: 1763: 1762: 1660: 1652: 1651: 1610: 1609: 1575: 1570: 1569: 1533: 1516: 1515: 1498: 1497: 1457: 1421: 1374: 1373: 1294: 1249: 1188: 1187: 1141: 999: 980: 963: 962: 920: 919: 912: 911: 853: 852: 823: 822: 798: 784: 783: 744: 703: 695: 694: 666: 653: 616: 578: 533: 532: 513: 512: 487: 486: 484: 475: 433: 420: 410: 409: 378: 356: 352: 351: 328: 327: 304: 303: 287: 273: 248: 247: 231: 208: 186: 163: 153: 123: 122: 117: 108: 99: 83: 44:power functions 36:power transform 28: 23: 22: 15: 12: 11: 5: 4770: 4768: 4760: 4759: 4754: 4744: 4743: 4740: 4739: 4733: 4708: 4707:External links 4705: 4704: 4703: 4674: 4627: 4614: 4602:(3): 239–258. 4585:DeGroot, M. H. 4581: 4571:(3): 609–615. 4553: 4535:(2): 211–252. 4513: 4510: 4507: 4506: 4487:(4): 954–959. 4469: 4457: 4450: 4432: 4421: 4414: 4396: 4351: 4344: 4323: 4304:(2): 211–252. 4278: 4252: 4224:(2): 169–178, 4208: 4175: 4140: 4097: 4036: 4021: 3994: 3993: 3991: 3988: 3987: 3986: 3973: 3968: 3965: 3962: 3959: 3956: 3953: 3950: 3942: 3940: 3937: 3934: 3929: 3925: 3921: 3918: 3915: 3912: 3909: 3906: 3905: 3902: 3899: 3896: 3893: 3890: 3887: 3884: 3876: 3874: 3871: 3868: 3865: 3862: 3858: 3854: 3851: 3848: 3843: 3840: 3837: 3834: 3831: 3827: 3823: 3820: 3815: 3811: 3807: 3804: 3801: 3798: 3795: 3794: 3791: 3788: 3785: 3782: 3779: 3776: 3773: 3765: 3763: 3760: 3757: 3752: 3748: 3744: 3741: 3738: 3735: 3734: 3731: 3728: 3725: 3722: 3719: 3716: 3713: 3705: 3703: 3699: 3695: 3692: 3689: 3684: 3680: 3676: 3673: 3668: 3664: 3660: 3657: 3654: 3653: 3651: 3646: 3641: 3638: 3635: 3630: 3626: 3602: 3599: 3596: 3576: 3556: 3544: 3541: 3515: 3512: 3511: 3510: 3498: 3493: 3490: 3487: 3483: 3477: 3473: 3469: 3466: 3444: 3443: 3431: 3428: 3425: 3422: 3419: 3416: 3413: 3410: 3407: 3404: 3401: 3398: 3363: 3362: 3350: 3345: 3341: 3337: 3331: 3323: 3319: 3315: 3312: 3309: 3306: 3303: 3300: 3295: 3291: 3287: 3282: 3277: 3274: 3256: 3255: 3243: 3240: 3237: 3234: 3231: 3228: 3225: 3222: 3219: 3216: 3213: 3210: 3207: 3204: 3201: 3198: 3195: 3192: 3189: 3186: 3183: 3153: 3150: 3133: 3111: 3108: 3107: 3106: 3095: 3090: 3087: 3084: 3081: 3078: 3071: 3067: 3059: 3056: 3051: 3046: 3041: 3035: 3032: 3026: 3023: 3018: 3013: 3010: 3007: 3002: 2997: 2994: 2991: 2988: 2983: 2978: 2975: 2952: 2928: 2925: 2908: 2899:The parameter 2883: 2879: 2875: 2872: 2867: 2863: 2842: 2839: 2834: 2830: 2818: 2817: 2804: 2799: 2796: 2793: 2788: 2784: 2775: 2773: 2768: 2764: 2760: 2755: 2751: 2747: 2744: 2741: 2738: 2737: 2734: 2731: 2728: 2723: 2719: 2710: 2703: 2699: 2694: 2691: 2684: 2680: 2675: 2669: 2665: 2661: 2656: 2652: 2648: 2641: 2640: 2638: 2633: 2628: 2624: 2620: 2615: 2611: 2596: 2595: 2582: 2577: 2574: 2571: 2568: 2560: 2556: 2552: 2548: 2545: 2542: 2541: 2538: 2535: 2532: 2529: 2521: 2516: 2512: 2509: 2504: 2499: 2495: 2487: 2486: 2484: 2479: 2474: 2471: 2468: 2463: 2459: 2443: 2440: 2411: 2406: 2402: 2398: 2395: 2392: 2372: 2357: 2356: 2343: 2338: 2335: 2332: 2329: 2321: 2319: 2316: 2313: 2308: 2304: 2300: 2297: 2294: 2291: 2288: 2285: 2282: 2279: 2276: 2273: 2270: 2267: 2264: 2261: 2258: 2255: 2252: 2249: 2248: 2245: 2242: 2239: 2236: 2233: 2225: 2217: 2214: 2211: 2207: 2203: 2200: 2197: 2194: 2191: 2188: 2185: 2182: 2179: 2174: 2171: 2166: 2161: 2156: 2153: 2148: 2144: 2139: 2135: 2132: 2129: 2124: 2120: 2116: 2113: 2110: 2103: 2102: 2100: 2095: 2092: 2089: 2086: 2083: 2080: 2075: 2071: 2067: 2064: 2052:, as follows: 2016: 2010: 2009: 1996: 1991: 1988: 1985: 1982: 1974: 1972: 1969: 1966: 1961: 1957: 1953: 1950: 1947: 1944: 1941: 1938: 1935: 1932: 1929: 1926: 1923: 1922: 1919: 1916: 1913: 1910: 1907: 1899: 1891: 1888: 1885: 1881: 1877: 1874: 1871: 1868: 1865: 1862: 1859: 1856: 1853: 1848: 1845: 1840: 1836: 1832: 1829: 1824: 1820: 1816: 1809: 1808: 1806: 1801: 1798: 1795: 1792: 1789: 1786: 1781: 1777: 1773: 1770: 1708:is 0, and the 1686: 1682: 1678: 1675: 1672: 1667: 1663: 1659: 1648:log likelihood 1633: 1630: 1627: 1622: 1618: 1591: 1584: 1581: 1555: 1552: 1549: 1546: 1543: 1540: 1536: 1532: 1529: 1526: 1523: 1512: 1511: 1496: 1493: 1490: 1487: 1484: 1479: 1476: 1473: 1470: 1467: 1464: 1460: 1456: 1453: 1450: 1447: 1443: 1437: 1430: 1427: 1420: 1417: 1414: 1411: 1408: 1405: 1402: 1399: 1395: 1391: 1388: 1385: 1382: 1379: 1377: 1375: 1372: 1369: 1366: 1363: 1360: 1357: 1354: 1351: 1348: 1345: 1342: 1339: 1336: 1333: 1330: 1327: 1324: 1321: 1318: 1315: 1310: 1303: 1300: 1293: 1290: 1287: 1284: 1281: 1278: 1275: 1272: 1268: 1264: 1261: 1258: 1255: 1252: 1250: 1248: 1245: 1239: 1236: 1230: 1224: 1221: 1215: 1210: 1205: 1202: 1199: 1196: 1195: 1177: 1176: 1163: 1160: 1157: 1154: 1151: 1148: 1144: 1140: 1137: 1134: 1131: 1128: 1123: 1120: 1117: 1112: 1108: 1102: 1097: 1094: 1091: 1087: 1083: 1079: 1075: 1072: 1068: 1062: 1059: 1056: 1051: 1047: 1043: 1039: 1033: 1028: 1025: 1022: 1018: 1014: 1011: 1006: 1002: 998: 995: 992: 987: 983: 979: 976: 973: 970: 956: 955: 944: 939: 935: 932: 927: 923: 876: 873: 870: 865: 861: 830: 810: 805: 801: 797: 794: 791: 771: 768: 765: 762: 759: 756: 751: 747: 743: 740: 737: 734: 728: 724: 721: 716: 711: 707: 678: 673: 669: 665: 660: 656: 652: 649: 646: 643: 640: 637: 634: 631: 628: 623: 619: 615: 612: 609: 606: 603: 600: 597: 594: 590: 585: 581: 577: 574: 571: 568: 564: 561: 558: 555: 550: 545: 541: 520: 500: 497: 494: 480: 473: 467:geometric mean 463: 462: 447: 440: 436: 432: 427: 423: 417: 413: 406: 400: 397: 391: 385: 381: 375: 370: 367: 364: 360: 355: 350: 347: 344: 341: 338: 335: 321: 320: 307: 302: 299: 296: 288: 286: 280: 276: 271: 268: 265: 262: 259: 256: 253: 250: 249: 246: 243: 240: 232: 230: 221: 218: 215: 211: 207: 204: 201: 198: 195: 192: 189: 184: 181: 176: 171: 167: 159: 158: 156: 151: 146: 143: 140: 135: 131: 113: 104: 97: 82: 79: 42:of data using 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 4769: 4758: 4755: 4753: 4750: 4749: 4747: 4738: 4734: 4731: 4726: 4722: 4721: 4716: 4711: 4710: 4706: 4700: 4696: 4692: 4688: 4684: 4680: 4675: 4671: 4667: 4663: 4659: 4655: 4651: 4646: 4641: 4637: 4633: 4628: 4624: 4620: 4615: 4610: 4605: 4601: 4597: 4590: 4586: 4582: 4578: 4574: 4570: 4566: 4559: 4554: 4550: 4546: 4542: 4538: 4534: 4530: 4529: 4524: 4520: 4516: 4515: 4511: 4502: 4498: 4494: 4490: 4486: 4482: 4481: 4473: 4470: 4466: 4461: 4458: 4453: 4451:0-12-776150-0 4447: 4443: 4436: 4433: 4430: 4425: 4422: 4417: 4411: 4407: 4400: 4397: 4392: 4388: 4384: 4380: 4375: 4370: 4367:(1): 91–105. 4366: 4362: 4355: 4352: 4347: 4341: 4337: 4333: 4327: 4324: 4319: 4315: 4311: 4307: 4303: 4299: 4295: 4291: 4285: 4283: 4279: 4265: 4264: 4256: 4253: 4249: 4245: 4241: 4237: 4232: 4227: 4223: 4219: 4212: 4209: 4204: 4200: 4196: 4192: 4188: 4182: 4180: 4176: 4171: 4167: 4163: 4159: 4155: 4151: 4144: 4141: 4136: 4132: 4128: 4124: 4120: 4116: 4112: 4108: 4101: 4098: 4093: 4089: 4085: 4081: 4077: 4073: 4069: 4065: 4060: 4055: 4051: 4047: 4040: 4037: 4032: 4028: 4024: 4022:9780769525280 4018: 4014: 4010: 4006: 3999: 3996: 3989: 3966: 3963: 3960: 3957: 3954: 3951: 3948: 3935: 3932: 3927: 3923: 3919: 3913: 3910: 3907: 3900: 3897: 3894: 3891: 3888: 3885: 3882: 3869: 3866: 3863: 3856: 3849: 3846: 3838: 3835: 3832: 3821: 3818: 3813: 3809: 3805: 3796: 3789: 3786: 3783: 3780: 3777: 3774: 3771: 3758: 3755: 3750: 3746: 3739: 3736: 3729: 3726: 3723: 3720: 3717: 3714: 3711: 3701: 3697: 3690: 3687: 3682: 3674: 3671: 3666: 3662: 3649: 3644: 3636: 3628: 3624: 3616: 3615: 3614: 3600: 3597: 3594: 3574: 3554: 3542: 3540: 3538: 3534: 3530: 3526: 3521: 3513: 3496: 3491: 3488: 3485: 3481: 3475: 3471: 3467: 3464: 3457: 3456: 3455: 3453: 3449: 3429: 3426: 3420: 3417: 3414: 3408: 3405: 3402: 3399: 3396: 3389: 3388: 3387: 3385: 3380: 3378: 3373: 3371: 3369: 3348: 3343: 3339: 3335: 3321: 3317: 3310: 3307: 3304: 3298: 3293: 3289: 3285: 3275: 3272: 3265: 3264: 3263: 3261: 3241: 3235: 3229: 3223: 3220: 3217: 3211: 3205: 3199: 3196: 3193: 3187: 3181: 3174: 3173: 3172: 3170: 3166: 3162: 3157: 3151: 3149: 3147: 3141: 3137: 3130: 3128: 3123: 3121: 3117: 3109: 3093: 3088: 3085: 3082: 3079: 3076: 3069: 3065: 3057: 3054: 3049: 3030: 3021: 3011: 3008: 3005: 2992: 2986: 2976: 2973: 2966: 2965: 2964: 2950: 2942: 2938: 2934: 2926: 2924: 2922: 2906: 2897: 2881: 2877: 2873: 2870: 2865: 2861: 2840: 2837: 2832: 2828: 2797: 2794: 2791: 2786: 2782: 2766: 2762: 2758: 2753: 2749: 2742: 2739: 2732: 2729: 2726: 2721: 2717: 2701: 2697: 2692: 2689: 2682: 2678: 2667: 2663: 2659: 2654: 2650: 2636: 2631: 2613: 2609: 2601: 2600: 2599: 2575: 2572: 2569: 2566: 2554: 2550: 2546: 2543: 2536: 2533: 2530: 2527: 2514: 2510: 2507: 2502: 2497: 2493: 2482: 2477: 2469: 2461: 2457: 2449: 2448: 2447: 2441: 2439: 2436: 2432: 2428: 2423: 2404: 2400: 2393: 2390: 2383:is less than 2370: 2362: 2361:sign function 2336: 2333: 2330: 2327: 2314: 2311: 2306: 2302: 2295: 2292: 2286: 2283: 2280: 2274: 2271: 2265: 2262: 2259: 2253: 2250: 2240: 2237: 2234: 2231: 2215: 2212: 2209: 2198: 2195: 2192: 2186: 2183: 2177: 2172: 2169: 2164: 2154: 2151: 2146: 2142: 2130: 2127: 2122: 2118: 2111: 2108: 2098: 2093: 2087: 2084: 2081: 2078: 2073: 2069: 2062: 2055: 2054: 2053: 2051: 2047: 2042: 2040: 2036: 2032: 2028: 2024: 2019: 2015: 1989: 1986: 1983: 1980: 1967: 1964: 1959: 1955: 1948: 1945: 1939: 1936: 1933: 1927: 1924: 1914: 1911: 1908: 1905: 1889: 1886: 1883: 1872: 1869: 1866: 1860: 1857: 1851: 1846: 1843: 1838: 1830: 1827: 1822: 1818: 1804: 1799: 1793: 1790: 1787: 1784: 1779: 1775: 1768: 1761: 1760: 1759: 1756: 1754: 1750: 1746: 1742: 1738: 1734: 1729: 1727: 1723: 1719: 1715: 1711: 1707: 1703: 1700:The value at 1698: 1684: 1680: 1673: 1670: 1665: 1661: 1649: 1628: 1620: 1616: 1607: 1589: 1579: 1550: 1547: 1544: 1538: 1530: 1524: 1521: 1494: 1488: 1485: 1474: 1471: 1468: 1462: 1454: 1448: 1445: 1441: 1435: 1425: 1418: 1415: 1409: 1406: 1397: 1393: 1389: 1386: 1380: 1378: 1364: 1358: 1355: 1349: 1346: 1340: 1337: 1334: 1328: 1325: 1319: 1316: 1308: 1298: 1291: 1288: 1282: 1279: 1270: 1266: 1262: 1259: 1253: 1251: 1234: 1228: 1219: 1200: 1197: 1186: 1185: 1184: 1182: 1158: 1155: 1152: 1146: 1138: 1132: 1129: 1126: 1121: 1118: 1115: 1110: 1106: 1100: 1095: 1092: 1089: 1085: 1081: 1073: 1070: 1066: 1057: 1049: 1045: 1041: 1031: 1026: 1023: 1020: 1016: 1012: 1004: 1000: 996: 993: 990: 985: 981: 977: 974: 968: 961: 960: 959: 942: 937: 933: 930: 925: 921: 910: 909: 908: 906: 902: 898: 894: 892: 871: 863: 859: 851: 847: 842: 828: 803: 799: 792: 789: 766: 760: 757: 749: 745: 738: 735: 732: 726: 722: 719: 714: 709: 705: 692: 691:Taylor series 671: 658: 654: 647: 644: 641: 632: 629: 621: 617: 610: 607: 604: 601: 598: 595: 583: 579: 572: 569: 566: 559: 556: 553: 548: 543: 539: 518: 498: 495: 492: 483: 479: 472: 468: 445: 438: 434: 430: 425: 421: 415: 411: 404: 398: 395: 389: 383: 379: 373: 368: 365: 362: 358: 353: 348: 342: 336: 333: 326: 325: 324: 300: 297: 294: 284: 278: 274: 269: 266: 260: 254: 251: 244: 241: 238: 228: 219: 216: 213: 202: 196: 193: 187: 182: 179: 174: 169: 165: 154: 149: 141: 133: 129: 121: 120: 119: 116: 112: 107: 103: 96: 92: 88: 80: 78: 76: 72: 68: 63: 61: 57: 53: 49: 45: 41: 37: 33: 19: 4718: 4685:(1): 45–62. 4682: 4678: 4638:(1): 47–56. 4635: 4631: 4622: 4618: 4599: 4595: 4568: 4564: 4532: 4526: 4484: 4478: 4472: 4460: 4441: 4435: 4424: 4405: 4399: 4364: 4360: 4354: 4335: 4332:Johnston, J. 4326: 4301: 4297: 4271:, retrieved 4262: 4255: 4221: 4217: 4211: 4194: 4190: 4153: 4149: 4143: 4113:(1): 45–62. 4110: 4106: 4100: 4052:(1): 47–56. 4049: 4045: 4039: 4004: 3998: 3546: 3529:scatterplots 3517: 3452:Cobb–Douglas 3447: 3445: 3383: 3381: 3374: 3366: 3364: 3259: 3258:Solving for 3257: 3168: 3164: 3160: 3158: 3155: 3142: 3138: 3131: 3124: 3113: 2930: 2898: 2819: 2597: 2445: 2424: 2358: 2049: 2043: 2034: 2026: 2022: 2017: 2013: 2011: 1757: 1753:econometrics 1751:, including 1744: 1740: 1730: 1725: 1721: 1720:. Sometimes 1717: 1713: 1705: 1704:= 1 for any 1701: 1699: 1513: 1178: 957: 895: 890: 845: 843: 481: 477: 470: 464: 322: 114: 110: 105: 101: 94: 90: 86: 84: 75:epidemiology 64: 35: 29: 4156:: 159–172. 3533:time-series 100:,...,  4746:Categories 4730:fixed link 4565:Biometrika 4523:Cox, D. R. 4512:References 4480:Biometrika 4294:Cox, D. R. 4273:2014-11-02 3537:histograms 3535:plots and 2427:consistent 1737:continuous 1710:derivative 81:Definition 46:. It is a 32:statistics 4725:EMS Press 4699:121582755 4670:118965098 4374:1401.3812 4226:CiteSeerX 4170:121909404 4135:121582755 4127:1573-8868 4092:118965098 4084:1572-8897 3949:λ 3920:− 3914:⁡ 3908:− 3886:≠ 3883:λ 3870:λ 3867:− 3847:− 3839:λ 3836:− 3806:− 3797:− 3787:≥ 3772:λ 3740:⁡ 3727:≥ 3715:≠ 3712:λ 3702:λ 3688:− 3683:λ 3637:λ 3595:λ 3575:λ 3525:Q–Q plots 3492:α 3489:− 3476:α 3421:α 3418:− 3403:α 3344:λ 3322:λ 3311:α 3308:− 3294:λ 3286:α 3230:τ 3224:α 3221:− 3200:τ 3197:α 3182:τ 3089:α 3086:− 3066:χ 3050:− 3034:^ 3031:λ 3012:⁡ 3006:≥ 2993:λ 2977:⁡ 2951:λ 2907:λ 2878:λ 2874:− 2783:λ 2763:λ 2743:⁡ 2727:≠ 2718:λ 2698:λ 2690:− 2679:λ 2664:λ 2623:λ 2567:λ 2547:⁡ 2531:≠ 2528:λ 2515:λ 2508:− 2503:λ 2470:λ 2394:⁡ 2371:α 2328:λ 2315:α 2296:⁡ 2287:α 2275:⁡ 2266:α 2254:⁡ 2235:≠ 2232:λ 2213:− 2210:λ 2199:α 2187:⁡ 2178:λ 2170:− 2165:λ 2155:α 2131:α 2112:⁡ 2088:α 2082:λ 2063:τ 1981:λ 1968:α 1949:⁡ 1940:α 1928:⁡ 1909:≠ 1906:λ 1887:− 1884:λ 1873:α 1861:⁡ 1852:λ 1844:− 1839:λ 1831:α 1794:α 1788:λ 1769:τ 1685:λ 1671:− 1666:λ 1629:λ 1606:residuals 1583:^ 1580:σ 1548:− 1545:λ 1525:⁡ 1472:− 1469:λ 1449:⁡ 1429:^ 1426:σ 1419:π 1410:⁡ 1387:− 1359:⁡ 1350:⁡ 1338:− 1335:λ 1302:^ 1299:σ 1292:π 1283:⁡ 1260:− 1238:^ 1235:σ 1223:^ 1220:μ 1201:⁡ 1156:− 1153:λ 1133:⁡ 1119:− 1116:λ 1086:∏ 1058:λ 1017:∏ 994:… 975:λ 938:λ 931:− 926:λ 893:changes. 872:λ 829:λ 793:⁡ 767:λ 739:⁡ 727:λ 720:− 715:λ 648:⁡ 642:λ 611:⁡ 605:λ 573:⁡ 567:λ 560:⁡ 549:λ 519:λ 493:λ 431:⋯ 359:∏ 337:⁡ 295:λ 270:⁡ 255:⁡ 242:≠ 239:λ 217:− 214:λ 197:⁡ 188:λ 180:− 175:λ 142:λ 4587:(1987). 4391:41501327 4334:(1984). 3945:if  3879:if  3768:if  3708:if  2778:if  2713:if  2563:if  2524:if  2324:if  2228:if  2025:. If τ( 1977:if  1902:if  905:Jacobian 693:. Then 689:- using 291:if  235:if  4650:Bibcode 4549:0192611 4541:2984418 4501:2673623 4318:0192611 4310:2984418 4248:2348250 4064:Bibcode 4031:2444503 3110:Example 2939:on the 2033:, then 465:is the 4697:  4668:  4547:  4539:  4499:  4448:  4412:  4389:  4342:  4316:  4308:  4246:  4228:  4168:  4133:  4125:  4090:  4082:  4029:  4019:  3527:, X–Y 2935:using 323:where 4695:S2CID 4666:S2CID 4640:arXiv 4592:(PDF) 4561:(PDF) 4537:JSTOR 4497:JSTOR 4387:S2CID 4369:arXiv 4306:JSTOR 4267:(PDF) 4244:JSTOR 4166:S2CID 4131:S2CID 4088:S2CID 4054:arXiv 4027:S2CID 3990:Notes 3446:When 3382:When 3370:(CES) 1733:power 1608:from 4625:(5). 4446:ISBN 4410:ISBN 4340:ISBN 4123:ISSN 4080:ISSN 4017:ISBN 3964:< 3898:< 3520:SOCR 3518:The 3118:and 2871:> 2838:> 2429:and 899:and 34:, a 4687:doi 4658:doi 4604:doi 4573:doi 4489:doi 4379:doi 4236:doi 4199:doi 4158:doi 4115:doi 4072:doi 4009:doi 3120:γGT 3116:ALT 2391:min 2272:sgn 2109:sgn 1743:at 1407:log 1347:log 1280:log 1198:log 901:Cox 897:Box 557:exp 30:In 4748:: 4723:, 4717:, 4693:. 4683:11 4681:. 4664:. 4656:. 4648:. 4636:39 4634:. 4623:23 4621:. 4598:. 4594:. 4569:68 4567:. 4563:. 4545:MR 4543:. 4533:26 4531:. 4521:; 4495:. 4485:87 4483:. 4385:. 4377:. 4365:46 4363:. 4314:MR 4312:. 4302:26 4300:. 4292:; 4281:^ 4242:, 4234:, 4222:41 4220:, 4195:76 4193:. 4178:^ 4164:. 4154:54 4152:. 4129:. 4121:. 4111:11 4109:. 4086:. 4078:. 4070:. 4062:. 4050:39 4048:. 4025:. 4015:. 3911:ln 3737:ln 3567:. 3539:. 3531:, 3171:: 3009:ln 2974:ln 2896:. 2740:ln 2544:ln 2293:ln 2251:GM 2184:GM 2041:. 1946:ln 1925:GM 1858:GM 1755:. 1522:GM 1446:GM 1356:GM 1130:GM 790:ln 736:ln 645:ln 608:ln 570:ln 334:GM 267:ln 252:GM 194:GM 73:, 4732:) 4728:( 4701:. 4689:: 4672:. 4660:: 4652:: 4642:: 4612:. 4606:: 4600:2 4579:. 4575:: 4551:. 4503:. 4491:: 4454:. 4418:. 4393:. 4381:: 4371:: 4348:. 4320:. 4238:: 4205:. 4201:: 4172:. 4160:: 4137:. 4117:: 4094:. 4074:: 4066:: 4056:: 4033:. 4011:: 3967:0 3961:y 3958:, 3955:2 3952:= 3939:) 3936:1 3933:+ 3928:i 3924:y 3917:( 3901:0 3895:y 3892:, 3889:2 3873:) 3864:2 3861:( 3857:/ 3853:) 3850:1 3842:) 3833:2 3830:( 3826:) 3822:1 3819:+ 3814:i 3810:y 3803:( 3800:( 3790:0 3784:y 3781:, 3778:0 3775:= 3762:) 3759:1 3756:+ 3751:i 3747:y 3743:( 3730:0 3724:y 3721:, 3718:0 3698:/ 3694:) 3691:1 3679:) 3675:1 3672:+ 3667:i 3663:y 3659:( 3656:( 3650:{ 3645:= 3640:) 3634:( 3629:i 3625:y 3601:1 3598:= 3555:y 3497:. 3486:1 3482:N 3472:K 3468:= 3465:Q 3448:λ 3430:. 3427:N 3424:) 3415:1 3412:( 3409:+ 3406:K 3400:= 3397:Q 3384:λ 3349:, 3340:/ 3336:1 3330:) 3318:N 3314:) 3305:1 3302:( 3299:+ 3290:K 3281:( 3276:= 3273:Q 3260:Q 3242:. 3239:) 3236:N 3233:( 3227:) 3218:1 3215:( 3212:+ 3209:) 3206:K 3203:( 3194:= 3191:) 3188:Q 3185:( 3169:N 3165:K 3161:Q 3134:1 3094:. 3083:1 3080:, 3077:1 3070:2 3058:2 3055:1 3045:) 3040:) 3025:( 3022:L 3017:( 3001:) 2996:) 2990:( 2987:L 2982:( 2882:2 2866:i 2862:y 2841:0 2833:i 2829:y 2798:, 2795:0 2792:= 2787:1 2772:) 2767:2 2759:+ 2754:i 2750:y 2746:( 2733:, 2730:0 2722:1 2702:1 2693:1 2683:1 2674:) 2668:2 2660:+ 2655:i 2651:y 2647:( 2637:{ 2632:= 2627:) 2619:( 2614:i 2610:y 2576:, 2573:0 2570:= 2555:i 2551:y 2537:, 2534:0 2511:1 2498:i 2494:y 2483:{ 2478:= 2473:) 2467:( 2462:i 2458:y 2410:) 2405:i 2401:y 2397:( 2337:, 2334:0 2331:= 2318:) 2312:+ 2307:i 2303:y 2299:( 2290:) 2284:+ 2281:y 2278:( 2269:) 2263:+ 2260:y 2257:( 2241:, 2238:0 2216:1 2206:) 2202:) 2196:+ 2193:y 2190:( 2181:( 2173:1 2160:| 2152:+ 2147:i 2143:y 2138:| 2134:) 2128:+ 2123:i 2119:y 2115:( 2099:{ 2094:= 2091:) 2085:, 2079:; 2074:i 2070:y 2066:( 2050:y 2035:Y 2027:Y 2023:i 2018:i 2014:y 1990:, 1987:0 1984:= 1971:) 1965:+ 1960:i 1956:y 1952:( 1943:) 1937:+ 1934:y 1931:( 1915:, 1912:0 1890:1 1880:) 1876:) 1870:+ 1867:y 1864:( 1855:( 1847:1 1835:) 1828:+ 1823:i 1819:y 1815:( 1805:{ 1800:= 1797:) 1791:, 1785:; 1780:i 1776:y 1772:( 1745:λ 1741:λ 1726:Y 1722:Y 1718:λ 1714:Y 1706:λ 1702:Y 1681:/ 1677:) 1674:1 1662:y 1658:( 1632:) 1626:( 1621:i 1617:y 1590:2 1554:) 1551:1 1542:( 1539:2 1535:) 1531:y 1528:( 1495:. 1492:) 1489:1 1486:+ 1483:) 1478:) 1475:1 1466:( 1463:2 1459:) 1455:y 1452:( 1442:/ 1436:2 1416:2 1413:( 1404:( 1401:) 1398:2 1394:/ 1390:n 1384:( 1381:= 1371:) 1368:) 1365:y 1362:( 1353:( 1344:) 1341:1 1332:( 1329:n 1326:+ 1323:) 1320:1 1317:+ 1314:) 1309:2 1289:2 1286:( 1277:( 1274:) 1271:2 1267:/ 1263:n 1257:( 1254:= 1247:) 1244:) 1229:, 1214:( 1209:L 1204:( 1162:) 1159:1 1150:( 1147:n 1143:) 1139:y 1136:( 1127:= 1122:1 1111:i 1107:y 1101:n 1096:1 1093:= 1090:i 1082:= 1078:| 1074:y 1071:d 1067:/ 1061:) 1055:( 1050:i 1046:y 1042:d 1038:| 1032:n 1027:1 1024:= 1021:i 1013:= 1010:) 1005:n 1001:y 997:, 991:, 986:1 982:y 978:; 972:( 969:J 943:. 934:1 922:y 891:λ 875:) 869:( 864:i 860:y 846:λ 809:) 804:i 800:y 796:( 770:) 764:( 761:O 758:+ 755:) 750:i 746:y 742:( 733:= 723:1 710:i 706:y 677:) 672:2 668:) 664:) 659:i 655:y 651:( 639:( 636:( 633:O 630:+ 627:) 622:i 618:y 614:( 602:+ 599:1 596:= 593:) 589:) 584:i 580:y 576:( 563:( 554:= 544:i 540:y 499:0 496:= 482:n 478:y 474:1 471:y 446:n 439:n 435:y 426:2 422:y 416:1 412:y 405:= 399:n 396:1 390:) 384:i 380:y 374:n 369:1 366:= 363:i 354:( 349:= 346:) 343:y 340:( 301:0 298:= 285:, 279:i 275:y 264:) 261:y 258:( 245:0 229:, 220:1 210:) 206:) 203:y 200:( 191:( 183:1 170:i 166:y 155:{ 150:= 145:) 139:( 134:i 130:y 115:i 111:y 106:n 102:y 98:1 95:y 91:λ 87:λ 20:)

Index

Box–Cox transformation
statistics
monotonic transformation
power functions
data transformation
stabilize variance
normal distribution
Pearson correlation
multi-resolution and wavelet analysis
geochemical data analysis
epidemiology
geometric mean
Taylor series
scientific interpretation of any equation involving
Box
Cox
Jacobian
log likelihood at its maximum
residuals
log likelihood
derivative
power
continuous
regression analysis
econometrics
truncated normal distribution
Box–Cox distribution
truncated distribution
sign function
consistent

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