Am Samstag, den 08.03.2008, 19:34 +0100 schrieb Uwe Ligges: > > Martin Kaffanke wrote: > > Hi there! > > > > I have two little different data. One is a computer test on people, the > > other is a paper and pencil test. two boxplots show me that the data is > > almost the same. > > > > So now I'd like to know if I could handle all data as one, by testing > > with ks.test: > > > > ==== > >> ks.test(el$angststoer, fl$angststoer) > > > > Two-sample Kolmogorov-Smirnov test > > > > data: el$angststoer and fl$angststoer > > D = 0.1413, p-value = 0.9112 > > alternative hypothesis: two-sided > > > > Warning message: > > In ks.test(el$angststoer, fl$angststoer) : > > cannot compute correct p-values with ties > > ==== > > > > Ok, so how can I get the p-value? > > > You already got it, it is 0.9112, but since you have ties in your data, > R warns you about it (it's not an error, just a warning). And indeed, > you have some ties in fl$angststoer.
Thanks, But what exactly are ties? And how can I interpret the answers? (I'm not sure about the german translation, and the translations don't give me a hint. Thanks, Martin > > Uwe Ligges > > > > > I tried two tests: > > ==== > >> ks.test(fl$angststoer, "dnorm") > > > > One-sample Kolmogorov-Smirnov test > > > > data: fl$angststoer > > D = 0.8109, p-value < 2.2e-16 > > alternative hypothesis: two-sided > > > > Warning message: > > In ks.test(fl$angststoer, "dnorm") : > > cannot compute correct p-values with ties > > ==== > > > > so I see that this message in the first one, depends on fl$angststoer. > > > > The I have on this two vectors: > > > > ==== > >> fl$angststoer > > [1] 1.22184871 -0.30103000 1.00000000 -1.30103000 0.69897000 > > -0.30103000 > > [7] -2.30103000 -1.00000000 -2.00000000 0.22184832 -1.77819468 > > -0.30103000 > > [13] -2.00000000 -0.30103000 -0.30103000 0.22184832 -0.90308999 > > -1.14611935 > > [19] -1.30103000 -3.20411998 -0.60205999 -2.25531594 -3.60205999 > > -1.30103000 > > [25] -2.30103000 -0.07918038 -2.14599777 0.74472745 -3.30103000 > > -0.30103000 > > [31] -0.30103000 -4.30103000 -0.60205999 -0.14612847 -1.30103000 > > -1.30103000 > > [37] 0.00000000 -0.17609234 -0.47711908 -1.77819468 -1.00000000 > > -1.20411998 > > [43] -0.07918038 -2.00000000 -2.00000000 -1.30103000 > >> el$angststoer > > [1] -2.2407100 -2.8601209 -0.5005659 -2.4007721 -0.3474336 -2.6653452 > > [7] 0.6548865 -1.6281751 -1.2940679 -0.1316566 -1.4541612 -1.6560206 > > [13] -0.7441850 0.8219399 0.1746081 -1.2314248 -3.8910969 0.1328448 > > [19] -1.8439508 -0.8833972 -0.4936052 -0.1664593 -0.8694749 -2.8253588 > > ==== > > > > Doesn't seem to be a problem? > > > > What can I do for a good computation? > > > > Thanks, > > Martin > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > ______________________________________________ > > R-help@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. -- Ihr Partner für Webdesign, Webapplikationen und Webspace. http://www.roomandspace.com/ Martin Kaffanke +43 650 4514224
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______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
