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Ljung–Box test

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and David A. Pierce). In fact, the Ljung–Box test statistic was described explicitly in the paper that led to the use of the Box–Pierce statistic, and from which that statistic takes its name. The Box–Pierce test statistic is a simplified version of the Ljung–Box statistic for which subsequent
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of a fitted ARIMA model, not the original series, and in such applications the hypothesis actually being tested is that the residuals from the ARIMA model have no autocorrelation. When testing the residuals of an estimated ARIMA model, the degrees of freedom need to be adjusted to reflect the
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The data are independently distributed (i.e. the correlations in the population from which the sample is taken are 0, so that any observed correlations in the data result from randomness of the sampling
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Box, G. E. P.; Pierce, D. A. (1970). "Distribution of Residual Autocorrelations in Autoregressive-Integrated Moving Average Time Series Models".
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distribution than is the distribution for the Box–Pierce statistic for all sample sizes including small ones.
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at each distinct lag, it tests the "overall" randomness based on a number of lags, and is therefore a
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Simulation studies have shown that the distribution for the Ljung–Box statistic is closer to a
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G. M. Ljung; G. E. P. Box (1978). "On a Measure of a Lack of Fit in Time Series Models".
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The Box–Pierce test uses the test statistic, in the notation outlined above, given by
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The data are not independently distributed; they exhibit serial correlation.
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Brockwell, Peter J.; Davis, Richard A.; Davis, R. J. (2002-03-08).
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and it uses the same critical region as defined above.
845:: the Ljung–Box tests and the Box–Pierce tests in the 777: 690: 647: 567: 514: 465: 438: 394: 286: 250: 217: 3139:
Autoregressive conditional heteroskedasticity (ARCH)
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Instead of testing 1144:Introduction to Time Series and Forecasting 1009:Introduction to Time Series and Forecasting 3296: 3283: 3200: 3006: 2875: 2850: 2621: 2597: 2325: 2108: 1909: 1896: 1679: 1666: 1305: 1296: 1283: 1249: 1235: 1227: 1147:(2nd ed.). Springer. pp. 35–38. 432:is the number of lags being tested. Under 1141:Brockwell, Peter; Davis, Richard (2002). 793: 782: 776: 746: 741: 730: 729: 722: 711: 695: 689: 646: 589: 572: 566: 542: 525: 513: 481: 470: 464: 459:the statistic Q asymptotically follows a 443: 437: 408: 397: 396: 393: 352: 347: 336: 335: 332: 326: 315: 285: 255: 249: 222: 216: 120:Learn how and when to remove this message 626:autoregressive integrated moving average 183:The Ljung–Box test is widely applied in 974:Davies, Neville; Newbold, Paul (1979). 894: 624:The Ljung–Box test is commonly used in 598:{\displaystyle \chi _{1-\alpha ,h}^{2}} 3213:Kaplan–Meier estimator (product limit) 813:Implementations in statistics packages 207:The Ljung–Box test may be defined as: 424:is the sample autocorrelation at lag 171:, and it is closely connected to the 7: 3523: 3223:Accelerated failure time (AFT) model 940: 938: 900: 898: 167:This test is sometimes known as the 58:adding citations to reliable sources 3535: 2818:Analysis of variance (ANOVA, anova) 1066:"R: Box–Pierce and Ljung–Box Tests" 2913:Cochran–Mantel–Haenszel statistics 1539:Pearson product-moment correlation 417:{\displaystyle {\hat {\rho }}_{k}} 25: 3534: 3522: 3510: 3497: 3496: 1217: This article incorporates 1212: 1013:. Taylor & Francis. p.  34: 3172:Least-squares spectral analysis 1165:Applied Econometric Time Series 802:{\displaystyle \chi _{(h)}^{2}} 490:{\displaystyle \chi _{(h)}^{2}} 45:needs additional citations for 2153:Mean-unbiased minimum-variance 921:10.1080/01621459.1970.10481180 789: 783: 735: 477: 471: 402: 341: 308: 296: 1: 3563:Time series statistical tests 3466:Geographic information system 2682:Simultaneous equations models 825:function in the stats package 148:of whether any of a group of 2649:Coefficient of determination 2260:Uniformly most powerful test 3218:Proportional hazards models 3162:Spectral density estimation 3144:Vector autoregression (VAR) 2578:Maximum posterior estimator 1810:Randomized controlled trial 3584: 2978:Multivariate distributions 1398:Average absolute deviation 1044:. Blackwell. p. 162. 187:and other applications of 3492: 3295: 3282: 2966:Structural equation model 2874: 2849: 2620: 2596: 2328: 2302:Score/Lagrange multiplier 1908: 1895: 1717:Sample size determination 1678: 1665: 1295: 1282: 1264: 1090:"Python: Ljung–Box Tests" 3461:Environmental statistics 2983:Elliptical distributions 2776:Generalized linear model 2705:Simple linear regression 2475:Hodges–Lehmann estimator 1932:Probability distribution 1841:Stochastic approximation 1403:Coefficient of variation 1038:Davidson, James (2000). 873:Wald–Wolfowitz runs test 615:chi-squared distribution 3121:Cross-correlation (XCF) 2729:Non-standard predictors 2163:Lehmann–Scheffé theorem 1836:Adaptive clinical trial 1162:Enders, Walter (2010). 992:10.1093/biomet/66.1.153 961:10.1093/biomet/65.2.297 277:The test statistic is: 3517:Mathematics portal 3338:Engineering statistics 3246:Nelson–Aalen estimator 2823:Analysis of covariance 2710:Ordinary least squares 2634:Pearson product-moment 2038:Statistical functional 1949:Empirical distribution 1782:Controlled experiments 1511:Frequency distribution 1289:Descriptive statistics 1219:public domain material 803: 759: 727: 667: 605:is the (1 −  599: 552: 491: 453: 418: 375: 331: 265: 232: 175:(which is named after 3433:Population statistics 3375:System identification 3109:Autocorrelation (ACF) 3037:Exponential smoothing 2951:Discriminant analysis 2946:Canonical correlation 2810:Partition of variance 2672:Regression validation 2516:(Jonckheere–Terpstra) 2415:Likelihood-ratio test 2104:Frequentist inference 2016:Location–scale family 1937:Sampling distribution 1902:Statistical inference 1869:Cross-sectional study 1856:Observational studies 1815:Randomized experiment 1644:Stem-and-leaf display 1446:Central limit theorem 804: 760: 707: 668: 666:{\displaystyle h-p-q} 600: 553: 492: 454: 452:{\displaystyle H_{0}} 419: 376: 311: 266: 264:{\displaystyle H_{a}} 233: 231:{\displaystyle H_{0}} 3568:Time domain analysis 3356:Probabilistic design 2941:Principal components 2784:Exponential families 2736:Nonlinear regression 2715:General linear model 2677:Mixed effects models 2667:Errors and residuals 2644:Confounding variable 2546:Bayesian probability 2524:Van der Waerden test 2514:Ordered alternative 2279:Multiple comparisons 2158:Rao–Blackwellization 2121:Estimating equations 2077:Statistical distance 1795:Factorial experiment 1328:Arithmetic-Geometric 878:Breusch–Godfrey test 775: 688: 645: 621:degrees of freedom. 565: 512: 463: 436: 392: 388:is the sample size, 284: 248: 215: 193:Breusch–Godfrey test 189:time series analysis 54:improve this article 3428:Official statistics 3351:Methods engineering 3032:Seasonal adjustment 2800:Poisson regressions 2720:Bayesian regression 2659:Regression analysis 2639:Partial correlation 2611:Regression analysis 2210:Prediction interval 2205:Likelihood interval 2195:Confidence interval 2187:Interval estimation 2148:Unbiased estimators 1966:Model specification 1846:Up-and-down designs 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P. Box 169:Ljung–Box Q test 162:portmanteau test 150:autocorrelations 146:statistical test 142:George E. P. Box 125: 118: 114: 111: 105: 103: 69:"Ljung–Box test" 62: 38: 30: 27:Statistical test 21: 3583: 3582: 3578: 3577: 3576: 3574: 3573: 3572: 3553: 3552: 3551: 3546: 3509: 3480: 3442: 3379: 3365:quality control 3332: 3314:Clinical trials 3291: 3266: 3250: 3238:Hazard function 3232: 3186: 3148: 3132: 3095: 3091:Breusch–Godfrey 3079: 3056: 2996: 2971:Factor analysis 2917: 2898:Graphical model 2870: 2837: 2804: 2790: 2770: 2724: 2691: 2653: 2616: 2615: 2584: 2528: 2515: 2507: 2499: 2483: 2468: 2447:Rank statistics 2441: 2420:Model selection 2408: 2366:Goodness of fit 2360: 2337: 2311: 2283: 2236: 2181: 2170:Median unbiased 2098: 2009: 1942:Order statistic 1904: 1883: 1850: 1824: 1776: 1731: 1674: 1672:Data collection 1653: 1565: 1520: 1494: 1472: 1432: 1384: 1301:Continuous data 1291: 1278: 1260: 1255: 1213: 1210: 1200: 1182: 1176: 1161: 1155: 1140: 1137: 1135:Further reading 1132: 1131: 1122: 1120: 1112: 1111: 1107: 1098: 1096: 1094:statsmodels.org 1088: 1087: 1083: 1074: 1072: 1064: 1063: 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138:Greta M. Ljung 134:Ljung–Box test 128: 127: 42: 40: 33: 26: 24: 18:Ljung-Box test 14: 13: 10: 9: 6: 4: 3: 2: 3580: 3569: 3566: 3564: 3561: 3560: 3558: 3543: 3542: 3533: 3531: 3530: 3521: 3519: 3518: 3513: 3507: 3505: 3504: 3495: 3494: 3491: 3477: 3474: 3472: 3471:Geostatistics 3469: 3467: 3464: 3462: 3459: 3457: 3454: 3453: 3451: 3449: 3445: 3439: 3438:Psychometrics 3436: 3434: 3431: 3429: 3426: 3424: 3421: 3419: 3416: 3414: 3411: 3409: 3406: 3404: 3401: 3399: 3396: 3394: 3391: 3390: 3388: 3386: 3382: 3376: 3373: 3371: 3368: 3366: 3362: 3359: 3357: 3354: 3352: 3349: 3347: 3344: 3343: 3341: 3339: 3335: 3329: 3326: 3324: 3321: 3319: 3315: 3312: 3310: 3307: 3306: 3304: 3302: 3301:Biostatistics 3298: 3294: 3290: 3285: 3281: 3263: 3262:Log-rank test 3260: 3259: 3257: 3253: 3247: 3244: 3243: 3241: 3239: 3235: 3229: 3226: 3224: 3221: 3219: 3216: 3214: 3211: 3210: 3208: 3206: 3202: 3199: 3197: 3193: 3183: 3180: 3178: 3175: 3173: 3170: 3168: 3165: 3163: 3160: 3159: 3157: 3155: 3151: 3145: 3142: 3140: 3137: 3135: 3133:(Box–Jenkins) 3129: 3127: 3124: 3122: 3119: 3115: 3112: 3111: 3110: 3107: 3106: 3104: 3102: 3098: 3092: 3089: 3087: 3086:Durbin–Watson 3084: 3082: 3076: 3074: 3071: 3069: 3068:Dickey–Fuller 3066: 3065: 3063: 3059: 3053: 3050: 3048: 3045: 3043: 3042:Cointegration 3040: 3038: 3035: 3033: 3030: 3028: 3025: 3023: 3020: 3018: 3017:Decomposition 3015: 3014: 3012: 3008: 3005: 3003: 2999: 2989: 2986: 2985: 2984: 2981: 2980: 2979: 2976: 2972: 2969: 2968: 2967: 2964: 2962: 2959: 2957: 2954: 2952: 2949: 2947: 2944: 2942: 2939: 2937: 2934: 2932: 2929: 2928: 2926: 2924: 2920: 2914: 2911: 2909: 2906: 2904: 2901: 2899: 2896: 2894: 2891: 2889: 2888:Cohen's kappa 2886: 2885: 2883: 2881: 2877: 2873: 2869: 2865: 2861: 2857: 2852: 2848: 2834: 2831: 2829: 2826: 2824: 2821: 2819: 2816: 2815: 2813: 2811: 2807: 2801: 2797: 2793: 2787: 2785: 2782: 2781: 2779: 2777: 2773: 2767: 2764: 2762: 2759: 2757: 2754: 2752: 2749: 2747: 2744: 2742: 2741:Nonparametric 2739: 2737: 2734: 2733: 2731: 2727: 2721: 2718: 2716: 2713: 2711: 2708: 2706: 2703: 2702: 2700: 2698: 2694: 2688: 2685: 2683: 2680: 2678: 2675: 2673: 2670: 2668: 2665: 2664: 2662: 2660: 2656: 2650: 2647: 2645: 2642: 2640: 2637: 2635: 2632: 2631: 2629: 2627: 2623: 2619: 2612: 2609: 2607: 2604: 2603: 2599: 2595: 2579: 2576: 2575: 2574: 2571: 2569: 2566: 2564: 2561: 2557: 2554: 2552: 2549: 2548: 2547: 2544: 2543: 2541: 2539: 2535: 2525: 2522: 2518: 2512: 2510: 2504: 2502: 2496: 2495: 2494: 2491: 2490:Nonparametric 2488: 2486: 2480: 2476: 2473: 2472: 2471: 2465: 2461: 2460:Sample median 2458: 2457: 2456: 2453: 2452: 2450: 2448: 2444: 2436: 2433: 2431: 2428: 2426: 2423: 2422: 2421: 2418: 2416: 2413: 2411: 2405: 2403: 2400: 2398: 2395: 2393: 2390: 2388: 2385: 2383: 2381: 2377: 2375: 2372: 2371: 2369: 2367: 2363: 2357: 2355: 2351: 2349: 2347: 2342: 2340: 2335: 2331: 2330: 2327: 2324: 2322: 2318: 2308: 2305: 2303: 2300: 2298: 2295: 2294: 2292: 2290: 2286: 2280: 2277: 2273: 2270: 2269: 2268: 2265: 2261: 2258: 2257: 2256: 2253: 2251: 2248: 2247: 2245: 2243: 2239: 2231: 2228: 2226: 2223: 2222: 2221: 2218: 2216: 2213: 2211: 2208: 2206: 2203: 2201: 2198: 2196: 2193: 2192: 2190: 2188: 2184: 2178: 2175: 2171: 2168: 2164: 2161: 2159: 2156: 2155: 2154: 2151: 2150: 2149: 2146: 2142: 2139: 2137: 2134: 2132: 2129: 2127: 2124: 2123: 2122: 2119: 2118: 2116: 2114: 2110: 2107: 2105: 2101: 2095: 2092: 2090: 2087: 2083: 2080: 2079: 2078: 2075: 2073: 2070: 2066: 2065:loss function 2063: 2062: 2061: 2058: 2054: 2051: 2049: 2046: 2044: 2041: 2040: 2039: 2036: 2034: 2031: 2029: 2026: 2022: 2019: 2017: 2014: 2012: 2006: 2003: 2002: 2001: 1998: 1994: 1991: 1989: 1986: 1984: 1981: 1980: 1979: 1976: 1972: 1969: 1967: 1964: 1963: 1962: 1959: 1955: 1952: 1951: 1950: 1947: 1943: 1940: 1939: 1938: 1935: 1933: 1930: 1928: 1925: 1923: 1920: 1919: 1917: 1915: 1911: 1907: 1903: 1898: 1894: 1880: 1877: 1875: 1872: 1870: 1867: 1865: 1862: 1861: 1859: 1857: 1853: 1847: 1844: 1842: 1839: 1837: 1834: 1833: 1831: 1827: 1821: 1818: 1816: 1813: 1811: 1808: 1806: 1803: 1801: 1798: 1796: 1793: 1791: 1788: 1787: 1785: 1783: 1779: 1773: 1770: 1768: 1767:Questionnaire 1765: 1763: 1760: 1756: 1753: 1751: 1748: 1747: 1746: 1743: 1742: 1740: 1738: 1734: 1728: 1725: 1723: 1720: 1718: 1715: 1713: 1710: 1708: 1705: 1703: 1700: 1698: 1695: 1693: 1690: 1689: 1687: 1685: 1681: 1677: 1673: 1668: 1664: 1650: 1647: 1645: 1642: 1640: 1637: 1635: 1632: 1630: 1627: 1625: 1622: 1620: 1617: 1615: 1612: 1610: 1607: 1605: 1602: 1600: 1597: 1595: 1594:Control chart 1592: 1590: 1587: 1585: 1582: 1580: 1577: 1576: 1574: 1572: 1568: 1562: 1559: 1555: 1552: 1550: 1547: 1546: 1545: 1542: 1540: 1537: 1535: 1532: 1531: 1529: 1527: 1523: 1517: 1514: 1512: 1509: 1507: 1504: 1503: 1501: 1497: 1491: 1488: 1487: 1485: 1483: 1479: 1467: 1464: 1462: 1459: 1457: 1454: 1453: 1452: 1449: 1447: 1444: 1443: 1441: 1439: 1435: 1429: 1426: 1424: 1421: 1419: 1416: 1414: 1411: 1409: 1406: 1404: 1401: 1399: 1396: 1395: 1393: 1391: 1387: 1381: 1378: 1376: 1373: 1369: 1366: 1364: 1361: 1359: 1356: 1354: 1351: 1349: 1346: 1344: 1341: 1339: 1336: 1334: 1331: 1329: 1326: 1324: 1321: 1320: 1319: 1316: 1315: 1313: 1311: 1307: 1304: 1302: 1298: 1294: 1290: 1285: 1281: 1275: 1272: 1270: 1267: 1266: 1263: 1259: 1252: 1247: 1245: 1240: 1238: 1233: 1232: 1229: 1225: 1224: 1221:from the 1220: 1207: 1201: 1195: 1191: 1190: 1185: 1181: 1177: 1171: 1167: 1166: 1160: 1156: 1150: 1146: 1145: 1139: 1138: 1134: 1119: 1115: 1109: 1106: 1095: 1091: 1085: 1082: 1071: 1067: 1061: 1058: 1053: 1047: 1043: 1042: 1034: 1031: 1026: 1020: 1016: 1011: 1010: 1001: 998: 993: 989: 985: 981: 977: 970: 967: 962: 958: 954: 950: 949: 941: 939: 935: 930: 926: 922: 918: 914: 910: 909: 901: 899: 895: 888: 884: 881: 879: 876: 874: 871: 869: 866: 865: 861: 856: 853: 850: 844: 841: 830: 827: 820: 817: 816: 812: 810: 794: 786: 779: 769: 752: 747: 742: 732: 723: 718: 715: 712: 708: 704: 701: 692: 684: 683: 682: 676: 674: 660: 657: 654: 651: 648: 640: 636: 631: 627: 622: 620: 616: 612: 608: 590: 585: 582: 579: 576: 573: 569: 543: 538: 535: 532: 529: 526: 522: 518: 515: 508: 507: 506: 504: 500: 482: 474: 467: 444: 440: 431: 427: 409: 399: 387: 365: 362: 359: 353: 348: 338: 327: 322: 319: 316: 312: 305: 302: 299: 293: 290: 287: 280: 279: 278: 272: 256: 252: 243: 239: 223: 219: 210: 209: 208: 202: 200: 198: 194: 190: 186: 181: 178: 174: 170: 165: 163: 159: 155: 151: 147: 143: 139: 135: 124: 121: 113: 102: 99: 95: 92: 88: 85: 81: 78: 74: 71: –  70: 66: 65:Find sources: 59: 55: 49: 48: 43:This article 41: 37: 32: 31: 19: 3539: 3527: 3508: 3501: 3413:Econometrics 3363: / 3346:Chemometrics 3323:Epidemiology 3316: / 3289:Applications 3131:ARIMA model 3078:Q-statistic 3077: 3027:Stationarity 2923:Multivariate 2866: / 2862: / 2860:Multivariate 2858: / 2798: / 2794: / 2568:Bayes factor 2467:Signed rank 2379: 2353: 2345: 2333: 2028:Completeness 1864:Cohort study 1762:Opinion poll 1697:Missing data 1684:Study design 1639:Scatter plot 1561:Scatter plot 1554:Spearman's ρ 1516:Grouped data 1211: 1189:Econometrics 1188: 1164: 1143: 1121:. Retrieved 1117: 1108: 1097:. Retrieved 1093: 1084: 1073:. Retrieved 1070:stat.ethz.ch 1069: 1060: 1040: 1033: 1008: 1000: 983: 979: 969: 952: 946: 912: 906: 846: 770: 767: 680: 638: 634: 623: 618: 606: 560: 429: 425: 385: 383: 276: 244: 211: 206: 185:econometrics 182: 172: 168: 166: 133: 131: 116: 107: 97: 90: 83: 76: 64: 52:Please help 47:verification 44: 3541:WikiProject 3456:Cartography 3418:Jurimetrics 3370:Reliability 3101:Time domain 3080:(Ljung–Box) 3002:Time-series 2880:Categorical 2864:Time-series 2856:Categorical 2791:(Bernoulli) 2626:Correlation 2606:Correlation 2402:Jarque–Bera 2374:Chi-squared 2136:M-estimator 2089:Asymptotics 2033:Sufficiency 1800:Interaction 1712:Replication 1692:Effect size 1649:Violin plot 1629:Radar chart 1609:Forest plot 1599:Correlogram 1549:Kendall's τ 868:Q-statistic 837:statsmodels 154:time series 136:(named for 3557:Categories 3408:Demography 3126:ARMA model 2931:Regression 2508:(Friedman) 2469:(Wilcoxon) 2407:Normality 2397:Lilliefors 2344:Student's 2220:Resampling 2094:Robustness 2082:divergence 2072:Efficiency 2010:(monotone) 2005:Likelihood 1922:Population 1755:Stratified 1707:Population 1526:Dependence 1482:Count data 1413:Percentile 1390:Dispersion 1323:Arithmetic 1258:Statistics 1123:2020-02-04 1099:2018-07-23 1075:2016-06-05 980:Biometrika 948:Biometrika 889:References 158:randomness 80:newspapers 2789:Logistic 2556:posterior 2482:Rank sum 2230:Jackknife 2225:Bootstrap 2043:Bootstrap 1978:Parameter 1927:Statistic 1722:Statistic 1634:Run chart 1619:Pie chart 1614:Histogram 1604:Fan chart 1579:Bar chart 1461:L-moments 1348:Geometric 780:χ 736:^ 733:ρ 709:∑ 658:− 652:− 630:residuals 580:α 577:− 570:χ 533:α 530:− 523:χ 468:χ 403:^ 400:ρ 363:− 342:^ 339:ρ 313:∑ 241:process). 110:June 2011 3503:Category 3196:Survival 3073:Johansen 2796:Binomial 2751:Isotonic 2338:(normal) 1983:location 1790:Blocking 1745:Sampling 1624:Q–Q plot 1589:Box plot 1571:Graphics 1466:Skewness 1456:Kurtosis 1428:Variance 1358:Heronian 1353:Harmonic 1186:(2000). 862:See also 823:Box.test 611:quantile 195:and the 3529:Commons 3476:Kriging 3361:Process 3318:studies 3177:Wavelet 3010:General 2177:Plug-in 1971:L space 1750:Cluster 1451:Moments 1269:Outline 929:2284333 851:package 839:package 613:of the 501:α, the 94:scholar 3398:Census 2988:Normal 2936:Manova 2756:Robust 2506:2-way 2498:1-way 2336:-test 2007:  1584:Biplot 1375:Median 1368:Lehmer 1310:Center 1196:  1172:  1151:  1048:  1021:  927:  831:: the 829:Python 821:: the 561:where 497:. For 428:, and 384:where 96:  89:  82:  75:  67:  3022:Trend 2551:prior 2493:anova 2382:-test 2356:-test 2348:-test 2255:Power 2200:Pivot 1993:shape 1988:scale 1438:Shape 1418:Range 1363:Heinz 1338:Cubic 1274:Index 925:JSTOR 843:Julia 617:with 152:of a 101:JSTOR 87:books 3255:Test 2455:Sign 2307:Wald 1380:Mode 1318:Mean 1194:ISBN 1170:ISBN 1149:ISBN 1046:ISBN 1019:ISBN 855:SPSS 519:> 140:and 132:The 73:news 2435:BIC 2430:AIC 988:doi 957:doi 917:doi 637:,0, 56:by 3559:: 1116:. 1092:. 1068:. 1017:. 1015:36 984:66 982:. 978:. 953:65 951:. 937:^ 923:. 913:65 911:. 897:^ 697:BP 673:. 609:)- 199:. 164:. 2380:G 2354:F 2346:t 2334:Z 2053:V 2048:U 1250:e 1243:t 1236:v 1202:. 1178:. 1157:. 1126:. 1102:. 1078:. 1054:. 1027:. 994:. 990:: 963:. 959:: 931:. 919:: 819:R 795:2 790:) 787:h 784:( 753:, 748:2 743:k 724:h 719:1 716:= 713:k 705:n 702:= 693:Q 661:q 655:p 649:h 639:q 635:p 619:h 607:α 591:2 586:h 583:, 574:1 544:2 539:h 536:, 527:1 516:Q 483:2 478:) 475:h 472:( 445:0 441:H 430:h 426:k 410:k 386:n 366:k 360:n 354:2 349:k 328:h 323:1 320:= 317:k 309:) 306:2 303:+ 300:n 297:( 294:n 291:= 288:Q 271:: 257:a 253:H 238:: 224:0 220:H 123:) 117:( 112:) 108:( 98:· 91:· 84:· 77:· 50:. 20:)

Index

Ljung-Box test

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Greta M. Ljung
George E. P. Box
statistical test
autocorrelations
time series
randomness
portmanteau test
George E. P. Box
econometrics
time series analysis
Breusch–Godfrey test
Durbin–Watson test
significance level
critical region
quantile
chi-squared distribution
autoregressive integrated moving average
residuals

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