search for: gofstat

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2011 Jul 29
1
How to interpret Kolmogorov-Smirnov stats
...imum likelihood Parameters : estimate Std. Error shape1 2.148779 0.1458042 shape2 810.067515 61.8608126 Loglikelihood: 1917.51 AIC: -3831.02 BIC: -3823.15 Correlation matrix: shape1 shape2 shape1 1.0000000 0.8880194 shape2 0.8880194 1.0000000 now if i do : >gofstat(fit1, print.test=TRUE) Kolmogorov-Smirnov statistic: 0.06630064 Kolmogorov-Smirnov test: not rejected The result of this test may be too conservative as it assumes that the distribution parameters are known Cramer-von Mises statistic: 0.3866663 Crame-von Mises test: not calculated A...
2011 May 20
1
outout clarification of fitdist {fitdistrplus} output
Hello, I like to fit data against a negative binominal distribution x2<-c(rep(10,14),rep(9,8),rep(8,13),rep(7,11),rep(6,6),rep(5,18),rep(4,7),re p(3,21),rep(2,33),rep(1,55),rep(0,225)) f2<-fitdist(x2,"nbinom",method="mle") plot(f2) summary(f2) gofstat(f2) I receive the following result: Fitting of the distribution ' nbinom ' by maximum likelihood Parameters : estimate Std. Error size 0.3397148 0.03775577 mu 1.7787630 0.16429774 Loglikelihood: -701.0615 AIC: 1406.123 BIC: 1414.16 ------ I am wondering how...
2020 Oct 24
0
Fitting Mixed Distributions in the fitdistrplus package
...tdist(x,"gamma",lower=0) fpar<- fitdist(x,"pareto",start = list(shape=2,scale=2),lower=0) fmixgam<- fitdist(x,"mixgam",start = list(prob=1/2,shape1=1,scale1=1,shape2=1,scale2=1),lower=0) cdfcomp(list(fgam, fpar, fmixgam), xlogscale = TRUE) gofstat(list(fgam, fpar, fmixgam)) > > ---------- Forwarded message --------- > From: Charles Thuo <tcmuigai at gmail.com> > Date: Wed, Oct 21, 2020 at 12:03 AM > Subject: [R] Fitting Mixed Distributions in the fitdistrplus package > To: <r-help at r-project.org> > &g...