[R] density plot probabilities

2009-02-01 Thread gregor rolshausen
hello ! I have question concerning *kernel density plots*: how to plot density vs. the probability of a vector, when that vector is very short (5-10 values)? I tried: plot(density(x)) or hist(x,probability=T,border=white) lines(density(x)) for small length of vectors, the ylab is not

[R] correction for density plot question

2009-02-01 Thread gregor rolshausen
sorry! I ment to plot the probability vs. the values of course. not the probability vs. the density... cheers,gregor __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

[R] logistic regression - exp(estimates)?

2009-01-15 Thread gregor rolshausen
of the interpretation of the ANOVA table (or is the ANOVA table not really helpful at all?). thanks for your time. cheers, gregor rolshausen __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide

Re: [R] How to compute p-Values

2009-01-14 Thread gregor rolshausen
Andreas Klein wrote: Hello. How can I compute the Bootstrap p-Value for a one- and two sided test, when I have a bootstrap sample of a statistic of 1000 for example? My hypothesis are for example: 1. Two-Sided: H0: mean=0 vs. H1: mean!=0 2. One Sided: H0: mean=0 vs. H1: mean0 hi, do

[R] curve fitting with given term

2009-01-13 Thread gregor rolshausen
hello, I want to fit a curve to a simple x,y dataset - my problem is, that I want to fit it for the following term: n(1-e^x/y) - so I get the n constant for my data... can anyone help/comment on that? cheers, gregor __ R-help@r-project.org mailing

Re: [R] curve fitting with given term

2009-01-13 Thread gregor rolshausen
, gregor Uwe Ligges wrote: gregor rolshausen wrote: hello, I want to fit a curve to a simple x,y dataset - my problem is, that I want to fit it for the following term: n(1-e^x/y) - so I get the n constant for my data... Not an R problem in the first place, but the question arises what n(1-e

[R] PCA loadings differ vastly!

2009-01-13 Thread gregor rolshausen
hi, I have two questions: #first (SPSS vs. R): I just compared the output of different PCA routines in R (pca, prcomp, princomp) with results from SPSS. the loadings of the variables differ vastly! in SPSS the variables load constantly higher than in R. I made sure that both progr. use the

[R] Version 2.7.2 GUI acts awkward?

2008-09-30 Thread Gregor Rolshausen
an idea? thanks gregor -- Gregor Rolshausen PhD Student; University of Freiburg, Germany e-mail: [EMAIL PROTECTED] tel. : ++49 761 2032559 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

Re: [R] ANOVA between within variance

2008-09-27 Thread Gregor Rolshausen
+1-434-982-4729 Lab:B019+1-434-982-4751 Fax:+1-434-982-4766 WWW:http://www.people.virginia.edu/~mk9y/ Gregor Rolshausen PhD Student Department of Evolutionary Ecology University of Freiburg im Breisgau; Hauptstrasse 1, 79108 Freiburg phone - +49.761.2559 email - [EMAIL

[R] ANOVA between within variance

2008-09-26 Thread Gregor Rolshausen
hi, is there an option to calculate the 'within' 'between' group variances for a simple ANOVA (aov) model (2 groups, 1 trait, normally distr.) ? or do I have to calculate them from the Sum Sq ? thanks for your time and greetings, gregor -- Gregor Rolshausen PhD Student; University