[RsR] About the inconsistency p-value of two sample Kolmogorov–Smirnov test in R and Matlab

[Phillip Alday]

Dear Xionghui,

Cross-posting to two lists simultaneously generally isn't desirable.

Can you provide a minimum working example (code+data) for this? 
Otherwise, it's hard to see what's going on.

Best,
Phillip



On 11/11/19 9:50 pm, Zhou, Xionghui wrote:
> Hi guys,
> 
> 
> Recently, when I try to repeat my method using R, which was implemented in Matlab before, I found that the p-values for the two-sample ks-test in the two languages are different, even with the same data and parameters (The p-value in R is greater than the one in Matlab). In the meanwhile, the p-values of two-sample ks-test are the same in Matlab and python. In addition, I also test the p-value in Mann-Whitney-Wilcoxon test and Poission test, the p-values for the tests in R and Matlab are also different. Of course, the difference in two-sample ks-test is the most significant. May anyone tell me the reason for that and which language is more reliable? Thanks in advance!
> 
> 
> Best,
> 
> 
> 
> Xionghui
> 
> 
> Xionghui Zhou Ph.D.
> Research Fellow
> Division of Human Genetics
> Cincinnati Children�s Hospital Medical Center
> 
> Phone: +1 (513) 636-4200
> Email: Xionghui.Zhou using cchmc.org<mailto:Yaping.Liu using cchmc.org>
> Office: R1.1026
> 3333 Burnet Ave
> Cincinnati, OH 45229
> 
> 
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