Knowledge (XXG)

Mean absolute difference

Source 📝

33: 1447:
from the arithmetic mean. Because the standard deviation squares its differences, it tends to give more weight to larger differences and less weight to smaller differences compared to the mean absolute difference. When the arithmetic mean is finite, the mean absolute difference will also be finite, even when the standard deviation is infinite. See the
1439:), while the standard deviation is the square root of the variance about the mean (the second conventional central moment). The differences between L-moments and conventional moments are first seen in comparing the mean absolute difference and the standard deviation (the first L-moment and first conventional moment are both the mean). 1446:
and the mean absolute difference measure dispersion—how spread out are the values of a population or the probabilities of a distribution. The mean absolute difference is not defined in terms of a specific measure of central tendency, whereas the standard deviation is defined in terms of the deviation
1422:
If a random variable has a positive mean, then its relative mean absolute difference will always be greater than or equal to zero. If, additionally, the random variable can only take on values that are greater than or equal to zero, then its relative mean absolute difference will be less than 2.
962: 1824: 835: 493: 1632: 1148: 679: 2781: 2099: 1312:
The relative mean absolute difference is invariant to positive scaling, commutes with negation, and varies under translation in proportion to the ratio of the original and translated arithmetic means. That is to say, if
1219: 1224:
The relative mean absolute difference quantifies the mean absolute difference in comparison to the size of the mean and is a dimensionless quantity. The relative mean absolute difference is equal to twice the
3041: 4085: 2486: 2280: 1864:), in part because of the difficulty of finding an unbiased estimation for multiplying by the inverse of the mean. For example, even where the sample is known to be taken from a random variable 3093: 850: 2348: 2314: 2847: 3964: 161: 3532: 3350: 1660: 1233:. This relationship gives complementary perspectives to both the relative mean absolute difference and the Gini coefficient, including alternative ways of calculating their values. 2988: 2887: 714: 4133: 228: 3875: 2710: 3774: 3814: 3739: 282: 3567: 2523: 3662: 3602: 3480: 3298: 3154: 2408: 3420: 2959: 4047: 3914: 3385: 2935: 2674: 2244: 2209: 4005: 2641: 2382: 1499: 3636: 3454: 3272: 3128: 1013: 4428: 4026: 3835: 3704: 3683: 3501: 3319: 3238: 3217: 3196: 3175: 2915: 2607: 2586: 2565: 2544: 2450: 2429: 540: 4438: 2716: 1988: 4400: 4189: 1170: 1241:
The mean absolute difference is invariant to translations and negation, and varies proportionally to positive scaling. That is to say, if
54: 4340: 2169: 504: 76: 975: 4153: 3977: 2994: 1458:
plays similar role to the mean absolute difference but the distance standard deviation works with centered distances. See also
4055: 2456: 2250: 3048: 957:{\displaystyle \mathrm {MD} =\int _{0}^{\infty }\int _{-\infty }^{\infty }2\,f(x)\,f(x+\delta )\,\delta \,dx\,d\delta .} 695: 4433: 4396: 4317:
Mills, Jeffrey A.; Zandvakili, Sourushe (1997). "Statistical Inference via Bootstrapping for Measures of Inequality".
1455: 3970: 47: 41: 2320: 2286: 1819:{\displaystyle \mathrm {RMD} (S)={\frac {\sum _{i=1}^{n}\sum _{j=1}^{n}|y_{i}-y_{j}|}{(n-1)\sum _{i=1}^{n}y_{i}}}} 4443: 2787: 3920: 58: 4163: 3507: 3325: 2495: 251: 102: 830:{\displaystyle \mathrm {MD} =\int _{-\infty }^{\infty }\int _{-\infty }^{\infty }f(x)\,f(y)\,|x-y|\,dx\,dy.} 17: 4326: 3780: 2965: 1892: 128: 94: 2853: 4237: 4101: 174: 3841: 2680: 4263: 488:{\displaystyle \mathrm {MD} =E=E_{X}]={\frac {1}{n^{2}}}\sum _{i=1}^{n}\sum _{j=1}^{n}|x_{i}-y_{j}|.} 4331: 3745: 4148: 3787: 2613: 2354: 98: 21: 3710: 4296: 3608: 3426: 3244: 3100: 2893: 1443: 3538: 2502: 3641: 3573: 3459: 3277: 3133: 2387: 4448: 3391: 2941: 1627:{\displaystyle \mathrm {MD} (S)={\frac {\sum _{i=1}^{n}\sum _{j=1}^{n}|y_{i}-y_{j}|}{n(n-1)}}} 986: 4032: 3881: 3356: 2920: 2646: 2215: 2176: 4384: 4361: 4336: 4288: 3984: 2620: 2361: 1226: 1143:{\displaystyle \mathrm {MD} =\int _{0}^{1}\int _{0}^{1}|Q(F_{1})-Q(F_{2})|\,dF_{1}\,dF_{2}.} 151: 116: 4250: 1161: 674:{\displaystyle \mathrm {MD} =\sum _{i=1}^{n}\sum _{j=1}^{n}f(y_{i})f(y_{j})|y_{i}-y_{j}|.} 272: 112: 3615: 3433: 3251: 3107: 4401:"Gini's Mean difference: a superior measure of variability for non-normal distributions" 4267: 4190:"Gini's Mean Difference: A Superior Measure of Variability for Non-Normal Distributions" 1164:
AM, the relative mean absolute difference, sometimes denoted by Δ or RMD, is defined by
4219: 4011: 3820: 3689: 3668: 3486: 3304: 3223: 3202: 3181: 3160: 2900: 2592: 2571: 2550: 2529: 2435: 2414: 147: 124: 4422: 4136: 1230: 133: 146:
The mean absolute difference is defined as the "average" or "mean", formally the
4388: 1459: 4366: 4349: 2776:{\displaystyle {\frac {1}{k-1}}\,{\sqrt {\frac {k}{k-2}}}{\text{ for }}k>2} 2094:{\displaystyle \operatorname {E} (R(S))=\sum _{i=0}^{n}p^{i}(1-p)^{n-i}r_{i},} 4158: 1843: 1833: 1830: 1645: 1642: 1638: 2144:
Examples of mean absolute difference and relative mean absolute difference
4341:
10.1002/(SICI)1099-1255(199703)12:2<133::AID-JAE433>3.0.CO;2-H
254:
the (empirical) mean absolute difference of the sequence of sample values
4168: 1436: 138:(GMD). The mean absolute difference is sometimes denoted by Δ or as MD. 4300: 1432: 4220:"How Has the Literature on Gini's Index Evolved in the Past 80 Years?" 1214:{\displaystyle \mathrm {RMD} ={\frac {\mathrm {MD} }{\mathrm {AM} }}.} 4292: 4276: 4375:
Nair, U. S. (1936). "Standard Error of Gini's Mean Difference".
1858:
There does not exist, in general, an unbiased estimator for RMD(
26: 1160:
When the probability distribution has a finite and nonzero
3036:{\displaystyle {\frac {2\theta }{\mathrm {B} (0.5,k)}}\,} 1855:) can be calculated using bootstrap sampling techniques. 4080:{\displaystyle {\frac {\pi }{\sqrt {2}}}\approx 2.2214} 2481:{\displaystyle {\frac {2}{\sqrt {\pi }}}\approx 1.1284} 164:
with the same (unknown) distribution henceforth called
111:, which is the mean absolute difference divided by the 107: 4104: 4058: 4035: 4014: 3987: 3923: 3884: 3844: 3823: 3790: 3748: 3713: 3692: 3671: 3644: 3618: 3576: 3541: 3510: 3489: 3462: 3436: 3394: 3359: 3328: 3307: 3280: 3254: 3226: 3205: 3184: 3163: 3136: 3110: 3051: 2997: 2968: 2944: 2923: 2903: 2856: 2790: 2719: 2683: 2649: 2623: 2595: 2574: 2553: 2532: 2505: 2459: 2438: 2417: 2390: 2364: 2323: 2289: 2275:{\displaystyle {\frac {1}{\sqrt {12}}}\approx 0.2887} 2253: 2218: 2179: 1991: 1663: 1502: 1173: 1016: 853: 717: 543: 285: 177: 16:
For differences with respect to a central point, see
119:. The mean absolute difference is also known as the 3088:{\displaystyle {\frac {2}{k\mathrm {B} (0.5,k)}}\,} 246:of a population distributed uniformly according to 4127: 4079: 4041: 4020: 3999: 3958: 3908: 3869: 3829: 3808: 3768: 3733: 3698: 3677: 3656: 3630: 3596: 3561: 3526: 3495: 3474: 3448: 3414: 3379: 3344: 3313: 3292: 3266: 3232: 3211: 3190: 3169: 3148: 3122: 3087: 3035: 2982: 2953: 2929: 2909: 2881: 2841: 2775: 2704: 2668: 2635: 2601: 2580: 2559: 2538: 2517: 2480: 2444: 2423: 2402: 2376: 2342: 2308: 2274: 2238: 2203: 2093: 1818: 1626: 1213: 1142: 956: 829: 673: 487: 275:of the absolute value of all possible differences: 222: 842:An alternative form of the equation is given by: 4225:. Department of Economics, Dalhousie University 4350:"The Standard Error of Gini's Mean Difference" 8: 4408:Metron – International Journal of Statistics 2343:{\displaystyle {\frac {2}{3}}\approx 0.6667} 2309:{\displaystyle {\frac {1}{3}}\approx 0.3333} 531:, are the values with nonzero probabilities: 2842:{\displaystyle {\frac {2k}{(k-1)(2k-1)}}\,} 4197:Metron International Journal of Statistics 3959:{\displaystyle 2(1-p){\text{ for }}p>0} 1431:The mean absolute difference is twice the 1319:is a random variable and c is a constant: 4365: 4330: 4105: 4103: 4059: 4057: 4034: 4013: 3986: 3942: 3922: 3883: 3845: 3843: 3822: 3789: 3752: 3747: 3717: 3712: 3691: 3670: 3643: 3617: 3580: 3575: 3545: 3540: 3527:{\displaystyle {\sqrt {3}}\approx 1.7321} 3511: 3509: 3488: 3461: 3435: 3398: 3393: 3363: 3358: 3345:{\displaystyle {\sqrt {2}}\approx 1.4142} 3329: 3327: 3306: 3279: 3253: 3225: 3204: 3183: 3162: 3135: 3109: 3084: 3061: 3052: 3050: 3032: 3009: 2998: 2996: 2976: 2969: 2967: 2943: 2922: 2902: 2878: 2857: 2855: 2838: 2791: 2789: 2759: 2739: 2738: 2720: 2718: 2684: 2682: 2654: 2648: 2622: 2594: 2573: 2552: 2531: 2504: 2460: 2458: 2437: 2416: 2389: 2363: 2324: 2322: 2290: 2288: 2254: 2252: 2222: 2217: 2178: 2082: 2066: 2044: 2034: 2023: 1990: 1807: 1797: 1786: 1760: 1754: 1741: 1732: 1726: 1715: 1705: 1694: 1687: 1664: 1662: 1596: 1590: 1577: 1568: 1562: 1551: 1541: 1530: 1523: 1503: 1501: 1198: 1190: 1188: 1174: 1172: 1131: 1123: 1117: 1109: 1104: 1095: 1073: 1058: 1052: 1047: 1037: 1032: 1017: 1015: 944: 937: 933: 914: 901: 892: 884: 874: 869: 854: 852: 817: 810: 805: 791: 790: 777: 759: 751: 741: 733: 718: 716: 663: 657: 644: 635: 626: 607: 591: 580: 570: 559: 544: 542: 477: 471: 458: 449: 443: 432: 422: 411: 399: 390: 376: 362: 349: 345: 332: 317: 303: 286: 284: 209: 195: 178: 176: 162:independently and identically distributed 77:Learn how and when to remove this message 4262:. Bologna: Tipografia di Paolo Cuppini. 2142: 1962:But the expected value of any estimator 40:This article includes a list of general 4277:"Measurement of Inequality and Incomes" 4180: 101:of two independent values drawn from a 4246: 4235: 7: 4429:Statistical deviation and dispersion 2983:{\displaystyle {\sqrt {k}}\,\theta } 238:Specifically, in the discrete case, 150:, of the absolute difference of two 4439:Theory of probability distributions 2882:{\displaystyle {\frac {2}{2k-1}}\,} 4106: 4036: 3062: 3010: 2164:Relative mean absolute difference 1992: 1671: 1668: 1665: 1507: 1504: 1202: 1199: 1194: 1191: 1181: 1178: 1175: 1021: 1018: 893: 888: 875: 858: 855: 760: 755: 742: 737: 722: 719: 548: 545: 290: 287: 182: 179: 46:it lacks sufficient corresponding 14: 4354:Annals of Mathematical Statistics 4128:{\displaystyle \mathrm {B} (x,y)} 1229:which is defined in terms of the 1156:Relative mean absolute difference 223:{\displaystyle \mathrm {MD} :=E.} 108:relative mean absolute difference 95:measure of statistical dispersion 3870:{\displaystyle {\sqrt {p(1-p)}}} 2705:{\displaystyle {\frac {k}{k-1}}} 976:cumulative distribution function 31: 4319:Journal of Applied Econometrics 1451:for some specific comparisons. 4203:(2). Springer Verlag: 285–316. 4122: 4110: 3939: 3927: 3903: 3891: 3862: 3850: 3769:{\displaystyle 35/64=0.546875} 3078: 3066: 3026: 3014: 2832: 2817: 2814: 2802: 2063: 2050: 2013: 2010: 2004: 1998: 1779: 1767: 1761: 1733: 1681: 1675: 1618: 1606: 1597: 1569: 1517: 1511: 1427:Compared to standard deviation 1105: 1101: 1088: 1079: 1066: 1059: 930: 918: 911: 905: 806: 792: 787: 781: 774: 768: 664: 636: 632: 619: 613: 600: 478: 450: 384: 381: 377: 363: 359: 350: 338: 322: 318: 304: 300: 214: 210: 196: 192: 105:. A related statistic is the 20:. For paired differences, see 1: 3809:{\displaystyle 0\leq p\leq 1} 1849:Confidence intervals for RMD( 1448: 505:discrete probability function 123:(not to be confused with the 4312:. New York: Springer-Verlag. 4310:Ethical Social Index Numbers 3734:{\displaystyle 35/16=2.1875} 696:probability density function 242:For a random sample of size 4308:Chakravarty, S. R. (1990). 1842:), but is not, in general, 1456:distance standard deviation 4465: 3562:{\displaystyle 15/8=1.875} 2518:{\displaystyle \lambda =1} 15: 4389:10.1093/biomet/28.3-4.428 4218:Xu, Kuan (January 2004). 4188:Yitzhaki, Shlomo (2003). 3657:{\displaystyle \theta =1} 3597:{\displaystyle 5/8=0.625} 3475:{\displaystyle \theta =1} 3293:{\displaystyle \theta =1} 3149:{\displaystyle \theta =1} 2403:{\displaystyle \sigma =1} 1247:is a random variable and 271:can be calculated as the 115:, and equal to twice the 4348:Lomnicki, Z. A. (1952). 4260:Variabilità e Mutabilità 4164:Coefficient of variation 3415:{\displaystyle 3/4=0.75} 2954:{\displaystyle k\theta } 2161:Mean absolute difference 1982:)) will be of the form: 1454:The recently introduced 686:In the continuous case, 252:law of total expectation 121:absolute mean difference 103:probability distribution 91:mean absolute difference 4367:10.1214/aoms/1177729346 4042:{\displaystyle \infty } 3909:{\displaystyle 2p(1-p)} 3380:{\displaystyle 3/2=1.5} 2930:{\displaystyle \theta } 2669:{\displaystyle x_{m}=1} 2239:{\displaystyle 1/2=0.5} 2204:{\displaystyle a=0;b=1} 2121:)) can never equal RMD( 1907:) = 1) = 1 −  1474:from a random variable 61:more precise citations. 18:Mean absolute deviation 4275:Gini, Corrado (1921). 4258:Gini, Corrado (1912). 4245:Cite journal requires 4129: 4081: 4043: 4022: 4001: 4000:{\displaystyle \nu =2} 3960: 3910: 3871: 3831: 3810: 3770: 3735: 3700: 3679: 3658: 3632: 3598: 3563: 3528: 3497: 3476: 3450: 3416: 3381: 3346: 3315: 3294: 3268: 3234: 3213: 3192: 3171: 3150: 3124: 3089: 3037: 2984: 2955: 2931: 2911: 2883: 2843: 2777: 2706: 2670: 2637: 2636:{\displaystyle k>1} 2603: 2582: 2561: 2540: 2519: 2482: 2446: 2425: 2404: 2378: 2377:{\displaystyle \mu =0} 2344: 2310: 2276: 2240: 2205: 2095: 2039: 1893:Bernoulli distribution 1820: 1802: 1731: 1710: 1628: 1567: 1546: 1215: 1144: 958: 831: 675: 596: 575: 489: 448: 427: 224: 129:mean signed difference 4130: 4082: 4044: 4023: 4002: 3961: 3911: 3872: 3832: 3811: 3771: 3736: 3701: 3680: 3659: 3633: 3599: 3564: 3529: 3498: 3477: 3451: 3417: 3382: 3347: 3316: 3295: 3269: 3235: 3214: 3193: 3172: 3151: 3125: 3090: 3038: 2985: 2956: 2932: 2912: 2884: 2844: 2778: 2707: 2671: 2638: 2604: 2583: 2562: 2541: 2520: 2483: 2447: 2426: 2405: 2379: 2345: 2311: 2277: 2241: 2206: 2111:are constants. So E( 2096: 2019: 1821: 1782: 1711: 1690: 1629: 1547: 1526: 1216: 1145: 959: 832: 676: 576: 555: 490: 428: 407: 225: 97:equal to the average 4281:The Economic Journal 4102: 4056: 4033: 4012: 3985: 3921: 3882: 3842: 3821: 3788: 3746: 3711: 3690: 3669: 3642: 3616: 3574: 3539: 3508: 3487: 3460: 3434: 3392: 3357: 3326: 3305: 3278: 3252: 3224: 3203: 3182: 3161: 3134: 3108: 3049: 2995: 2966: 2942: 2921: 2901: 2854: 2788: 2717: 2681: 2647: 2621: 2593: 2572: 2551: 2530: 2503: 2457: 2436: 2415: 2388: 2362: 2321: 2287: 2251: 2216: 2177: 1989: 1661: 1500: 1470:For a random sample 1171: 1014: 851: 715: 541: 283: 175: 4268:1912vamu.book.....G 4149:Mean absolute error 3631:{\displaystyle k=4} 3449:{\displaystyle k=3} 3267:{\displaystyle k=2} 3123:{\displaystyle k=1} 2145: 1057: 1042: 897: 879: 764: 746: 99:absolute difference 22:Mean absolute error 4434:Summary statistics 4125: 4077: 4039: 4018: 3997: 3956: 3906: 3867: 3827: 3806: 3766: 3731: 3696: 3675: 3654: 3628: 3594: 3559: 3524: 3493: 3472: 3446: 3412: 3377: 3342: 3311: 3290: 3264: 3230: 3209: 3188: 3167: 3146: 3120: 3085: 3033: 2980: 2951: 2927: 2907: 2879: 2839: 2773: 2702: 2666: 2633: 2599: 2578: 2557: 2536: 2515: 2478: 2442: 2421: 2400: 2374: 2340: 2306: 2272: 2236: 2201: 2170:Continuous uniform 2158:Standard deviation 2143: 2091: 1816: 1654:). The statistic: 1624: 1444:standard deviation 1211: 1140: 1043: 1028: 1004:, it follows that: 954: 880: 865: 827: 747: 729: 671: 485: 220: 93:(univariate) is a 4095: 4094: 4069: 4068: 4021:{\displaystyle 0} 3945: 3865: 3830:{\displaystyle p} 3699:{\displaystyle 2} 3678:{\displaystyle 4} 3516: 3496:{\displaystyle 3} 3334: 3314:{\displaystyle 2} 3233:{\displaystyle 1} 3212:{\displaystyle 1} 3191:{\displaystyle 1} 3170:{\displaystyle 1} 3082: 3030: 2974: 2910:{\displaystyle k} 2876: 2836: 2762: 2757: 2756: 2736: 2700: 2602:{\displaystyle 1} 2581:{\displaystyle 1} 2560:{\displaystyle 1} 2539:{\displaystyle 1} 2470: 2469: 2445:{\displaystyle 1} 2424:{\displaystyle 0} 2332: 2298: 2264: 2263: 2135:between 0 and 1. 1952:)/(1 +  1874:) for an unknown 1814: 1622: 1466:Sample estimators 1206: 987:quantile function 405: 87: 86: 79: 4456: 4444:Scale statistics 4415: 4405: 4397:Yitzhaki, Shlomo 4392: 4383:(3–4): 428–436. 4371: 4369: 4344: 4334: 4313: 4304: 4287:(121): 124–126. 4271: 4254: 4248: 4243: 4241: 4233: 4231: 4230: 4224: 4205: 4204: 4194: 4185: 4134: 4132: 4131: 4126: 4109: 4088: 4086: 4084: 4083: 4078: 4070: 4064: 4060: 4048: 4046: 4045: 4040: 4027: 4025: 4024: 4019: 4006: 4004: 4003: 3998: 3965: 3963: 3962: 3957: 3946: 3943: 3915: 3913: 3912: 3907: 3876: 3874: 3873: 3868: 3866: 3846: 3836: 3834: 3833: 3828: 3815: 3813: 3812: 3807: 3775: 3773: 3772: 3767: 3756: 3740: 3738: 3737: 3732: 3721: 3705: 3703: 3702: 3697: 3684: 3682: 3681: 3676: 3663: 3661: 3660: 3655: 3637: 3635: 3634: 3629: 3603: 3601: 3600: 3595: 3584: 3568: 3566: 3565: 3560: 3549: 3533: 3531: 3530: 3525: 3517: 3512: 3502: 3500: 3499: 3494: 3481: 3479: 3478: 3473: 3455: 3453: 3452: 3447: 3421: 3419: 3418: 3413: 3402: 3386: 3384: 3383: 3378: 3367: 3351: 3349: 3348: 3343: 3335: 3330: 3320: 3318: 3317: 3312: 3299: 3297: 3296: 3291: 3273: 3271: 3270: 3265: 3239: 3237: 3236: 3231: 3218: 3216: 3215: 3210: 3197: 3195: 3194: 3189: 3176: 3174: 3173: 3168: 3155: 3153: 3152: 3147: 3129: 3127: 3126: 3121: 3094: 3092: 3091: 3086: 3083: 3081: 3065: 3053: 3042: 3040: 3039: 3034: 3031: 3029: 3013: 3007: 2999: 2989: 2987: 2986: 2981: 2975: 2970: 2960: 2958: 2957: 2952: 2936: 2934: 2933: 2928: 2916: 2914: 2913: 2908: 2888: 2886: 2885: 2880: 2877: 2875: 2858: 2848: 2846: 2845: 2840: 2837: 2835: 2800: 2792: 2782: 2780: 2779: 2774: 2763: 2760: 2758: 2755: 2741: 2740: 2737: 2735: 2721: 2711: 2709: 2708: 2703: 2701: 2699: 2685: 2675: 2673: 2672: 2667: 2659: 2658: 2642: 2640: 2639: 2634: 2608: 2606: 2605: 2600: 2587: 2585: 2584: 2579: 2566: 2564: 2563: 2558: 2545: 2543: 2542: 2537: 2524: 2522: 2521: 2516: 2487: 2485: 2484: 2479: 2471: 2465: 2461: 2451: 2449: 2448: 2443: 2430: 2428: 2427: 2422: 2409: 2407: 2406: 2401: 2383: 2381: 2380: 2375: 2349: 2347: 2346: 2341: 2333: 2325: 2315: 2313: 2312: 2307: 2299: 2291: 2281: 2279: 2278: 2273: 2265: 2259: 2255: 2245: 2243: 2242: 2237: 2226: 2210: 2208: 2207: 2202: 2146: 2100: 2098: 2097: 2092: 2087: 2086: 2077: 2076: 2049: 2048: 2038: 2033: 1957: 1928: 1911: 1890: 1825: 1823: 1822: 1817: 1815: 1813: 1812: 1811: 1801: 1796: 1765: 1764: 1759: 1758: 1746: 1745: 1736: 1730: 1725: 1709: 1704: 1688: 1674: 1633: 1631: 1630: 1625: 1623: 1621: 1601: 1600: 1595: 1594: 1582: 1581: 1572: 1566: 1561: 1545: 1540: 1524: 1510: 1493:, the statistic 1480:, consisting of 1227:Gini coefficient 1220: 1218: 1217: 1212: 1207: 1205: 1197: 1189: 1184: 1149: 1147: 1146: 1141: 1136: 1135: 1122: 1121: 1108: 1100: 1099: 1078: 1077: 1062: 1056: 1051: 1041: 1036: 1024: 963: 961: 960: 955: 896: 891: 878: 873: 861: 836: 834: 833: 828: 809: 795: 763: 758: 745: 740: 725: 680: 678: 677: 672: 667: 662: 661: 649: 648: 639: 631: 630: 612: 611: 595: 590: 574: 569: 551: 494: 492: 491: 486: 481: 476: 475: 463: 462: 453: 447: 442: 426: 421: 406: 404: 403: 391: 380: 366: 358: 357: 353: 337: 336: 321: 307: 293: 229: 227: 226: 221: 213: 199: 185: 152:random variables 117:Gini coefficient 82: 75: 71: 68: 62: 57:this article by 48:inline citations 35: 34: 27: 4464: 4463: 4459: 4458: 4457: 4455: 4454: 4453: 4419: 4418: 4403: 4395: 4374: 4347: 4332:10.1.1.172.5003 4316: 4307: 4293:10.2307/2223319 4274: 4257: 4244: 4234: 4228: 4226: 4222: 4217: 4214: 4209: 4208: 4192: 4187: 4186: 4182: 4177: 4145: 4100: 4099: 4054: 4053: 4051: 4031: 4030: 4010: 4009: 3983: 3982: 3944: for  3919: 3918: 3880: 3879: 3840: 3839: 3819: 3818: 3786: 3785: 3744: 3743: 3709: 3708: 3688: 3687: 3667: 3666: 3640: 3639: 3614: 3613: 3572: 3571: 3537: 3536: 3506: 3505: 3485: 3484: 3458: 3457: 3432: 3431: 3390: 3389: 3355: 3354: 3324: 3323: 3303: 3302: 3276: 3275: 3250: 3249: 3222: 3221: 3201: 3200: 3180: 3179: 3159: 3158: 3132: 3131: 3106: 3105: 3057: 3047: 3046: 3008: 3000: 2993: 2992: 2964: 2963: 2940: 2939: 2919: 2918: 2899: 2898: 2862: 2852: 2851: 2801: 2793: 2786: 2785: 2761: for  2745: 2725: 2715: 2714: 2689: 2679: 2678: 2650: 2645: 2644: 2619: 2618: 2591: 2590: 2570: 2569: 2549: 2548: 2528: 2527: 2501: 2500: 2455: 2454: 2434: 2433: 2413: 2412: 2386: 2385: 2360: 2359: 2319: 2318: 2285: 2284: 2249: 2248: 2214: 2213: 2175: 2174: 2141: 2110: 2078: 2062: 2040: 1987: 1986: 1948:(1 −  1933: 1913: 1896: 1889:) − 1 1879: 1803: 1766: 1750: 1737: 1689: 1659: 1658: 1602: 1586: 1573: 1525: 1498: 1497: 1492: 1468: 1429: 1251:is a constant: 1239: 1169: 1168: 1162:arithmetic mean 1158: 1127: 1113: 1091: 1069: 1012: 1011: 996:), then, since 849: 848: 713: 712: 653: 640: 622: 603: 539: 538: 522: 467: 454: 395: 341: 328: 281: 280: 273:arithmetic mean 262: 236: 173: 172: 144: 136:mean difference 113:arithmetic mean 83: 72: 66: 63: 53:Please help to 52: 36: 32: 25: 12: 11: 5: 4462: 4460: 4452: 4451: 4446: 4441: 4436: 4431: 4421: 4420: 4417: 4416: 4393: 4372: 4360:(4): 635–637. 4345: 4325:(2): 133–150. 4314: 4305: 4272: 4255: 4247:|journal= 4213: 4210: 4207: 4206: 4179: 4178: 4176: 4173: 4172: 4171: 4166: 4161: 4156: 4154:Mean deviation 4151: 4144: 4141: 4140: 4139: 4124: 4121: 4118: 4115: 4112: 4108: 4093: 4092: 4089: 4076: 4073: 4067: 4063: 4049: 4038: 4028: 4017: 4007: 3996: 3993: 3990: 3980: 3967: 3966: 3955: 3952: 3949: 3941: 3938: 3935: 3932: 3929: 3926: 3916: 3905: 3902: 3899: 3896: 3893: 3890: 3887: 3877: 3864: 3861: 3858: 3855: 3852: 3849: 3837: 3826: 3816: 3805: 3802: 3799: 3796: 3793: 3783: 3777: 3776: 3765: 3762: 3759: 3755: 3751: 3741: 3730: 3727: 3724: 3720: 3716: 3706: 3695: 3685: 3674: 3664: 3653: 3650: 3647: 3627: 3624: 3621: 3611: 3605: 3604: 3593: 3590: 3587: 3583: 3579: 3569: 3558: 3555: 3552: 3548: 3544: 3534: 3523: 3520: 3515: 3503: 3492: 3482: 3471: 3468: 3465: 3445: 3442: 3439: 3429: 3423: 3422: 3411: 3408: 3405: 3401: 3397: 3387: 3376: 3373: 3370: 3366: 3362: 3352: 3341: 3338: 3333: 3321: 3310: 3300: 3289: 3286: 3283: 3263: 3260: 3257: 3247: 3241: 3240: 3229: 3219: 3208: 3198: 3187: 3177: 3166: 3156: 3145: 3142: 3139: 3119: 3116: 3113: 3103: 3097: 3096: 3080: 3077: 3074: 3071: 3068: 3064: 3060: 3056: 3044: 3028: 3025: 3022: 3019: 3016: 3012: 3006: 3003: 2990: 2979: 2973: 2961: 2950: 2947: 2937: 2926: 2906: 2896: 2890: 2889: 2874: 2871: 2868: 2865: 2861: 2849: 2834: 2831: 2828: 2825: 2822: 2819: 2816: 2813: 2810: 2807: 2804: 2799: 2796: 2783: 2772: 2769: 2766: 2754: 2751: 2748: 2744: 2734: 2731: 2728: 2724: 2712: 2698: 2695: 2692: 2688: 2676: 2665: 2662: 2657: 2653: 2632: 2629: 2626: 2616: 2610: 2609: 2598: 2588: 2577: 2567: 2556: 2546: 2535: 2525: 2514: 2511: 2508: 2498: 2492: 2491: 2488: 2477: 2474: 2468: 2464: 2452: 2441: 2431: 2420: 2410: 2399: 2396: 2393: 2373: 2370: 2367: 2357: 2351: 2350: 2339: 2336: 2331: 2328: 2316: 2305: 2302: 2297: 2294: 2282: 2271: 2268: 2262: 2258: 2246: 2235: 2232: 2229: 2225: 2221: 2211: 2200: 2197: 2194: 2191: 2188: 2185: 2182: 2172: 2166: 2165: 2162: 2159: 2156: 2153: 2150: 2140: 2137: 2108: 2102: 2101: 2090: 2085: 2081: 2075: 2072: 2069: 2065: 2061: 2058: 2055: 2052: 2047: 2043: 2037: 2032: 2029: 2026: 2022: 2018: 2015: 2012: 2009: 2006: 2003: 2000: 1997: 1994: 1960: 1959: 1827: 1826: 1810: 1806: 1800: 1795: 1792: 1789: 1785: 1781: 1778: 1775: 1772: 1769: 1763: 1757: 1753: 1749: 1744: 1740: 1735: 1729: 1724: 1721: 1718: 1714: 1708: 1703: 1700: 1697: 1693: 1686: 1683: 1680: 1677: 1673: 1670: 1667: 1635: 1634: 1620: 1617: 1614: 1611: 1608: 1605: 1599: 1593: 1589: 1585: 1580: 1576: 1571: 1565: 1560: 1557: 1554: 1550: 1544: 1539: 1536: 1533: 1529: 1522: 1519: 1516: 1513: 1509: 1506: 1488: 1467: 1464: 1428: 1425: 1420: 1419: 1397: 1382: 1310: 1309: 1287: 1272: 1238: 1235: 1222: 1221: 1210: 1204: 1201: 1196: 1193: 1187: 1183: 1180: 1177: 1157: 1154: 1153: 1152: 1151: 1150: 1139: 1134: 1130: 1126: 1120: 1116: 1112: 1107: 1103: 1098: 1094: 1090: 1087: 1084: 1081: 1076: 1072: 1068: 1065: 1061: 1055: 1050: 1046: 1040: 1035: 1031: 1027: 1023: 1020: 1006: 1005: 967: 966: 965: 964: 953: 950: 947: 943: 940: 936: 932: 929: 926: 923: 920: 917: 913: 910: 907: 904: 900: 895: 890: 887: 883: 877: 872: 868: 864: 860: 857: 840: 839: 838: 837: 826: 823: 820: 816: 813: 808: 804: 801: 798: 794: 789: 786: 783: 780: 776: 773: 770: 767: 762: 757: 754: 750: 744: 739: 736: 732: 728: 724: 721: 707: 706: 684: 683: 682: 681: 670: 666: 660: 656: 652: 647: 643: 638: 634: 629: 625: 621: 618: 615: 610: 606: 602: 599: 594: 589: 586: 583: 579: 573: 568: 565: 562: 558: 554: 550: 547: 533: 532: 518: 496: 495: 484: 480: 474: 470: 466: 461: 457: 452: 446: 441: 438: 435: 431: 425: 420: 417: 414: 410: 402: 398: 394: 389: 386: 383: 379: 375: 372: 369: 365: 361: 356: 352: 348: 344: 340: 335: 331: 327: 324: 320: 316: 313: 310: 306: 302: 299: 296: 292: 289: 277: 276: 258: 235: 232: 231: 230: 219: 216: 212: 208: 205: 202: 198: 194: 191: 188: 184: 181: 148:expected value 143: 140: 125:absolute value 85: 84: 39: 37: 30: 13: 10: 9: 6: 4: 3: 2: 4461: 4450: 4447: 4445: 4442: 4440: 4437: 4435: 4432: 4430: 4427: 4426: 4424: 4413: 4409: 4402: 4398: 4394: 4390: 4386: 4382: 4378: 4373: 4368: 4363: 4359: 4355: 4351: 4346: 4342: 4338: 4333: 4328: 4324: 4320: 4315: 4311: 4306: 4302: 4298: 4294: 4290: 4286: 4282: 4278: 4273: 4269: 4265: 4261: 4256: 4252: 4239: 4221: 4216: 4215: 4211: 4202: 4198: 4191: 4184: 4181: 4174: 4170: 4167: 4165: 4162: 4160: 4157: 4155: 4152: 4150: 4147: 4146: 4142: 4138: 4137:Beta function 4119: 4116: 4113: 4097: 4096: 4090: 4074: 4071: 4065: 4061: 4050: 4029: 4015: 4008: 3994: 3991: 3988: 3981: 3979: 3975: 3974: 3969: 3968: 3953: 3950: 3947: 3936: 3933: 3930: 3924: 3917: 3900: 3897: 3894: 3888: 3885: 3878: 3859: 3856: 3853: 3847: 3838: 3824: 3817: 3803: 3800: 3797: 3794: 3791: 3784: 3782: 3779: 3778: 3763: 3760: 3757: 3753: 3749: 3742: 3728: 3725: 3722: 3718: 3714: 3707: 3693: 3686: 3672: 3665: 3651: 3648: 3645: 3625: 3622: 3619: 3612: 3610: 3607: 3606: 3591: 3588: 3585: 3581: 3577: 3570: 3556: 3553: 3550: 3546: 3542: 3535: 3521: 3518: 3513: 3504: 3490: 3483: 3469: 3466: 3463: 3443: 3440: 3437: 3430: 3428: 3425: 3424: 3409: 3406: 3403: 3399: 3395: 3388: 3374: 3371: 3368: 3364: 3360: 3353: 3339: 3336: 3331: 3322: 3308: 3301: 3287: 3284: 3281: 3261: 3258: 3255: 3248: 3246: 3243: 3242: 3227: 3220: 3206: 3199: 3185: 3178: 3164: 3157: 3143: 3140: 3137: 3117: 3114: 3111: 3104: 3102: 3099: 3098: 3075: 3072: 3069: 3058: 3054: 3045: 3023: 3020: 3017: 3004: 3001: 2991: 2977: 2971: 2962: 2948: 2945: 2938: 2924: 2904: 2897: 2895: 2892: 2891: 2872: 2869: 2866: 2863: 2859: 2850: 2829: 2826: 2823: 2820: 2811: 2808: 2805: 2797: 2794: 2784: 2770: 2767: 2764: 2752: 2749: 2746: 2742: 2732: 2729: 2726: 2722: 2713: 2696: 2693: 2690: 2686: 2677: 2663: 2660: 2655: 2651: 2630: 2627: 2624: 2617: 2615: 2612: 2611: 2596: 2589: 2575: 2568: 2554: 2547: 2533: 2526: 2512: 2509: 2506: 2499: 2497: 2494: 2493: 2489: 2475: 2472: 2466: 2462: 2453: 2439: 2432: 2418: 2411: 2397: 2394: 2391: 2371: 2368: 2365: 2358: 2356: 2353: 2352: 2337: 2334: 2329: 2326: 2317: 2303: 2300: 2295: 2292: 2283: 2269: 2266: 2260: 2256: 2247: 2233: 2230: 2227: 2223: 2219: 2212: 2198: 2195: 2192: 2189: 2186: 2183: 2180: 2173: 2171: 2168: 2167: 2163: 2160: 2157: 2154: 2151: 2148: 2147: 2138: 2136: 2134: 2130: 2126: 2125: 2120: 2119: 2114: 2107: 2088: 2083: 2079: 2073: 2070: 2067: 2059: 2056: 2053: 2045: 2041: 2035: 2030: 2027: 2024: 2020: 2016: 2007: 2001: 1995: 1985: 1984: 1983: 1981: 1977: 1976: 1971: 1970: 1965: 1955: 1951: 1947: 1943: 1939: 1938: 1932: 1931: 1930: 1927: 1923: 1919: 1918: 1910: 1906: 1902: 1901: 1894: 1888: 1884: 1883: 1877: 1873: 1869: 1868: 1863: 1862: 1856: 1854: 1853: 1847: 1845: 1841: 1840: 1835: 1832: 1808: 1804: 1798: 1793: 1790: 1787: 1783: 1776: 1773: 1770: 1755: 1751: 1747: 1742: 1738: 1727: 1722: 1719: 1716: 1712: 1706: 1701: 1698: 1695: 1691: 1684: 1678: 1657: 1656: 1655: 1653: 1652: 1647: 1644: 1640: 1615: 1612: 1609: 1603: 1591: 1587: 1583: 1578: 1574: 1563: 1558: 1555: 1552: 1548: 1542: 1537: 1534: 1531: 1527: 1520: 1514: 1496: 1495: 1494: 1491: 1487: 1483: 1479: 1478: 1473: 1465: 1463: 1461: 1457: 1452: 1450: 1445: 1440: 1438: 1434: 1426: 1424: 1417: 1413: 1412: 1407: 1406: 1402: 1398: 1395: 1394: 1389: 1388: 1383: 1380: 1379: 1374: 1370: 1369: 1364: 1360: 1359: 1354: 1350: 1349: 1344: 1343: 1338: 1337: 1332: 1328: 1327: 1322: 1321: 1320: 1318: 1317: 1307: 1306: 1301: 1297: 1296: 1292: 1288: 1285: 1284: 1279: 1278: 1273: 1270: 1269: 1264: 1260: 1259: 1254: 1253: 1252: 1250: 1246: 1245: 1236: 1234: 1232: 1228: 1208: 1185: 1167: 1166: 1165: 1163: 1155: 1137: 1132: 1128: 1124: 1118: 1114: 1110: 1096: 1092: 1085: 1082: 1074: 1070: 1063: 1053: 1048: 1044: 1038: 1033: 1029: 1025: 1010: 1009: 1008: 1007: 1003: 999: 998:f(x)=dF(x)/dx 995: 991: 988: 984: 980: 977: 973: 969: 968: 951: 948: 945: 941: 938: 934: 927: 924: 921: 915: 908: 902: 898: 885: 881: 870: 866: 862: 847: 846: 845: 844: 843: 824: 821: 818: 814: 811: 802: 799: 796: 784: 778: 771: 765: 752: 748: 734: 730: 726: 711: 710: 709: 708: 704: 700: 697: 693: 689: 688: 687: 668: 658: 654: 650: 645: 641: 627: 623: 616: 608: 604: 597: 592: 587: 584: 581: 577: 571: 566: 563: 560: 556: 552: 537: 536: 535: 534: 530: 526: 521: 517: 513: 509: 506: 502: 498: 497: 482: 472: 468: 464: 459: 455: 444: 439: 436: 433: 429: 423: 418: 415: 412: 408: 400: 396: 392: 387: 373: 370: 367: 354: 346: 342: 333: 329: 325: 314: 311: 308: 297: 294: 279: 278: 274: 270: 266: 261: 257: 253: 249: 245: 241: 240: 239: 233: 217: 206: 203: 200: 189: 186: 171: 170: 169: 167: 163: 160: 156: 153: 149: 141: 139: 137: 135: 130: 126: 122: 118: 114: 110: 109: 104: 100: 96: 92: 81: 78: 70: 67:November 2010 60: 56: 50: 49: 43: 38: 29: 28: 23: 19: 4411: 4407: 4380: 4376: 4357: 4353: 4322: 4318: 4309: 4284: 4280: 4259: 4238:cite journal 4227:. Retrieved 4200: 4196: 4183: 3972: 2149:Distribution 2132: 2128: 2123: 2122: 2117: 2116: 2112: 2105: 2103: 1979: 1974: 1973: 1968: 1967: 1963: 1961: 1953: 1949: 1945: 1941: 1936: 1935: 1925: 1921: 1916: 1915: 1908: 1904: 1899: 1898: 1886: 1881: 1880: 1875: 1871: 1866: 1865: 1860: 1859: 1857: 1851: 1850: 1848: 1838: 1837: 1828: 1650: 1649: 1636: 1489: 1485: 1481: 1476: 1475: 1471: 1469: 1460:E-statistics 1453: 1441: 1435:(the second 1430: 1421: 1415: 1410: 1409: 1404: 1403: 1400: 1392: 1391: 1386: 1385: 1377: 1376: 1372: 1367: 1366: 1362: 1357: 1356: 1352: 1347: 1346: 1341: 1340: 1335: 1334: 1330: 1325: 1324: 1315: 1314: 1311: 1304: 1303: 1299: 1294: 1293: 1290: 1282: 1281: 1276: 1275: 1267: 1266: 1262: 1257: 1256: 1248: 1243: 1242: 1240: 1231:Lorenz curve 1223: 1159: 1001: 997: 993: 989: 982: 978: 971: 841: 702: 698: 691: 685: 528: 524: 519: 515: 511: 507: 500: 268: 264: 259: 255: 247: 243: 237: 165: 158: 154: 145: 132: 120: 106: 90: 88: 73: 64: 45: 2496:Exponential 2131:)) for all 234:Calculation 59:introducing 4423:Categories 4414:: 285–316. 4377:Biometrika 4229:2006-06-01 4175:References 4091:undefined 3971:Student's 2490:undefined 2152:Parameters 2104:where the 1895:, so that 1831:consistent 1639:consistent 1237:Properties 142:Definition 131:) and the 42:references 4327:CiteSeerX 4159:Estimator 4072:≈ 4062:π 4037:∞ 3989:ν 3934:− 3898:− 3857:− 3801:≤ 3795:≤ 3781:Bernoulli 3646:θ 3519:≈ 3464:θ 3337:≈ 3282:θ 3138:θ 3005:θ 2978:θ 2949:θ 2925:θ 2870:− 2827:− 2809:− 2750:− 2730:− 2694:− 2507:λ 2473:≈ 2467:π 2392:σ 2366:μ 2335:≈ 2301:≈ 2267:≈ 2071:− 2057:− 2021:∑ 1996:⁡ 1972:) of RMD( 1924:) = 2) = 1834:estimator 1784:∑ 1774:− 1748:− 1713:∑ 1692:∑ 1646:estimator 1613:− 1584:− 1549:∑ 1528:∑ 1442:Both the 1390:) = −RMD( 1361:) / (1 + 1339:) · mean( 1083:− 1045:∫ 1030:∫ 1002:Q(F(x))=x 949:δ 935:δ 928:δ 894:∞ 889:∞ 886:− 882:∫ 876:∞ 867:∫ 800:− 761:∞ 756:∞ 753:− 749:∫ 743:∞ 738:∞ 735:− 731:∫ 651:− 578:∑ 557:∑ 514:), where 465:− 430:∑ 409:∑ 371:− 312:− 250:, by the 204:− 4449:Distance 4399:(2003). 4169:L-moment 4143:See also 3764:0.546875 2139:Examples 1891:has the 1844:unbiased 1643:unbiased 1449:examples 1437:L-moment 1408:) = RMD( 1375:≠ −mean( 1355:) = RMD( 1345:)/(mean( 1333:) = RMD( 4301:2223319 4264:Bibcode 4212:Sources 4135:is the 4087:⁠ 4052:⁠ 1929:, then 1836:of RMD( 1484:values 1433:L-scale 1418:> 0. 1371:)) for 1365:/ mean( 1280:) = MD( 1265:) = MD( 985:) with 527:= 1 to 267:= 1 to 127:of the 55:improve 4329:  4299:  4075:2.2214 3729:2.1875 3522:1.7321 3340:1.4142 2614:Pareto 2476:1.1284 2355:Normal 2338:0.6667 2304:0.3333 2270:0.2887 1944:)) = 2 1878:, and 1648:of MD( 1414:) for 1396:), and 1286:), and 974:has a 694:has a 503:has a 44:, but 4404:(PDF) 4297:JSTOR 4223:(PDF) 4193:(PDF) 3609:Gamma 3592:0.625 3557:1.875 3427:Gamma 3245:Gamma 3101:Gamma 2894:Gamma 1829:is a 1637:is a 1384:RMD(− 1302:| MD( 1298:) = | 4251:help 3978:d.f. 3976:, 2 3951:> 3410:0.75 2768:> 2628:> 2155:Mean 1934:RMD( 1912:and 1641:and 1399:RMD( 1351:) + 1323:RMD( 1274:MD(− 1000:and 157:and 134:Gini 89:The 4385:doi 4362:doi 4337:doi 4289:doi 3375:1.5 3070:0.5 3018:0.5 2234:0.5 1914:Pr( 1897:Pr( 1289:MD( 1255:MD( 970:if 690:if 499:if 4425:: 4412:61 4410:. 4406:. 4381:28 4379:. 4358:23 4356:. 4352:. 4335:. 4323:12 4321:. 4295:. 4285:31 4283:. 4279:. 4242:: 4240:}} 4236:{{ 4201:61 4199:. 4195:. 4098:† 3758:64 3750:35 3723:16 3715:35 3638:; 3543:15 3456:; 3274:; 3130:; 3095:† 2917:; 2643:; 2384:; 2261:12 1846:. 1462:. 1381:), 1329:+ 1308:). 1271:), 1261:+ 705:): 523:, 263:, 187::= 168:. 4391:. 4387:: 4370:. 4364:: 4343:. 4339:: 4303:. 4291:: 4270:. 4266:: 4253:) 4249:( 4232:. 4123:) 4120:y 4117:, 4114:x 4111:( 4107:B 4066:2 4016:0 3995:2 3992:= 3973:t 3954:0 3948:p 3940:) 3937:p 3931:1 3928:( 3925:2 3904:) 3901:p 3895:1 3892:( 3889:p 3886:2 3863:) 3860:p 3854:1 3851:( 3848:p 3825:p 3804:1 3798:p 3792:0 3761:= 3754:/ 3726:= 3719:/ 3694:2 3673:4 3652:1 3649:= 3626:4 3623:= 3620:k 3589:= 3586:8 3582:/ 3578:5 3554:= 3551:8 3547:/ 3514:3 3491:3 3470:1 3467:= 3444:3 3441:= 3438:k 3407:= 3404:4 3400:/ 3396:3 3372:= 3369:2 3365:/ 3361:3 3332:2 3309:2 3288:1 3285:= 3262:2 3259:= 3256:k 3228:1 3207:1 3186:1 3165:1 3144:1 3141:= 3118:1 3115:= 3112:k 3079:) 3076:k 3073:, 3067:( 3063:B 3059:k 3055:2 3043:† 3027:) 3024:k 3021:, 3015:( 3011:B 3002:2 2972:k 2946:k 2905:k 2873:1 2867:k 2864:2 2860:2 2833:) 2830:1 2824:k 2821:2 2818:( 2815:) 2812:1 2806:k 2803:( 2798:k 2795:2 2771:2 2765:k 2753:2 2747:k 2743:k 2733:1 2727:k 2723:1 2697:1 2691:k 2687:k 2664:1 2661:= 2656:m 2652:x 2631:1 2625:k 2597:1 2576:1 2555:1 2534:1 2513:1 2510:= 2463:2 2440:1 2419:0 2398:1 2395:= 2372:0 2369:= 2330:3 2327:2 2296:3 2293:1 2257:1 2231:= 2228:2 2224:/ 2220:1 2199:1 2196:= 2193:b 2190:; 2187:0 2184:= 2181:a 2133:p 2129:p 2127:( 2124:X 2118:S 2115:( 2113:R 2109:i 2106:r 2089:, 2084:i 2080:r 2074:i 2068:n 2064:) 2060:p 2054:1 2051:( 2046:i 2042:p 2036:n 2031:0 2028:= 2025:i 2017:= 2014:) 2011:) 2008:S 2005:( 2002:R 1999:( 1993:E 1980:p 1978:( 1975:X 1969:S 1966:( 1964:R 1958:. 1956:) 1954:p 1950:p 1946:p 1942:p 1940:( 1937:X 1926:p 1922:p 1920:( 1917:X 1909:p 1905:p 1903:( 1900:X 1887:p 1885:( 1882:X 1876:p 1872:p 1870:( 1867:X 1861:X 1852:X 1839:X 1809:i 1805:y 1799:n 1794:1 1791:= 1788:i 1780:) 1777:1 1771:n 1768:( 1762:| 1756:j 1752:y 1743:i 1739:y 1734:| 1728:n 1723:1 1720:= 1717:j 1707:n 1702:1 1699:= 1696:i 1685:= 1682:) 1679:S 1676:( 1672:D 1669:M 1666:R 1651:X 1619:) 1616:1 1610:n 1607:( 1604:n 1598:| 1592:j 1588:y 1579:i 1575:y 1570:| 1564:n 1559:1 1556:= 1553:j 1543:n 1538:1 1535:= 1532:i 1521:= 1518:) 1515:S 1512:( 1508:D 1505:M 1490:i 1486:y 1482:n 1477:X 1472:S 1416:c 1411:X 1405:X 1401:c 1393:X 1387:X 1378:X 1373:c 1368:X 1363:c 1358:X 1353:c 1348:X 1342:X 1336:X 1331:c 1326:X 1316:X 1305:X 1300:c 1295:X 1291:c 1283:X 1277:X 1268:X 1263:c 1258:X 1249:c 1244:X 1209:. 1203:M 1200:A 1195:D 1192:M 1186:= 1182:D 1179:M 1176:R 1138:. 1133:2 1129:F 1125:d 1119:1 1115:F 1111:d 1106:| 1102:) 1097:2 1093:F 1089:( 1086:Q 1080:) 1075:1 1071:F 1067:( 1064:Q 1060:| 1054:1 1049:0 1039:1 1034:0 1026:= 1022:D 1019:M 994:F 992:( 990:Q 983:x 981:( 979:F 972:Q 952:. 946:d 942:x 939:d 931:) 925:+ 922:x 919:( 916:f 912:) 909:x 906:( 903:f 899:2 871:0 863:= 859:D 856:M 825:. 822:y 819:d 815:x 812:d 807:| 803:y 797:x 793:| 788:) 785:y 782:( 779:f 775:) 772:x 769:( 766:f 727:= 723:D 720:M 703:x 701:( 699:f 692:Q 669:. 665:| 659:j 655:y 646:i 642:y 637:| 633:) 628:j 624:y 620:( 617:f 614:) 609:i 605:y 601:( 598:f 593:n 588:1 585:= 582:j 572:n 567:1 564:= 561:i 553:= 549:D 546:M 529:n 525:i 520:i 516:y 512:y 510:( 508:f 501:Q 483:. 479:| 473:j 469:y 460:i 456:x 451:| 445:n 440:1 437:= 434:j 424:n 419:1 416:= 413:i 401:2 397:n 393:1 388:= 385:] 382:] 378:| 374:Y 368:X 364:| 360:[ 355:X 351:| 347:Y 343:E 339:[ 334:X 330:E 326:= 323:] 319:| 315:Y 309:X 305:| 301:[ 298:E 295:= 291:D 288:M 269:n 265:i 260:i 256:y 248:Q 244:n 218:. 215:] 211:| 207:Y 201:X 197:| 193:[ 190:E 183:D 180:M 166:Q 159:Y 155:X 80:) 74:( 69:) 65:( 51:. 24:.

Index

Mean absolute deviation
Mean absolute error
references
inline citations
improve
introducing
Learn how and when to remove this message
measure of statistical dispersion
absolute difference
probability distribution
relative mean absolute difference
arithmetic mean
Gini coefficient
absolute value
mean signed difference
Gini
expected value
random variables
independently and identically distributed
law of total expectation
arithmetic mean
discrete probability function
probability density function
cumulative distribution function
quantile function
arithmetic mean
Gini coefficient
Lorenz curve
L-scale
L-moment

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.