search for: 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 of Freiburg, Germany e-mail: gregor.rolshausen at biologie.uni-freiburg.de tel. : ++49 761 2032559

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: mean<0 I hope you can help me Thanks in advance Regards, Andreas

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

...ndows (for example to "change directory" or "read in R-scripts") do not open - well, they open, but close down directly afterwards. I can't select a directory or file ... I tried re-installing R - same problem again. does anybody have an idea? thanks gregor -- Gregor Rolshausen PhD Student; University of Freiburg, Germany e-mail: gregor.rolshausen at biologie.uni-freiburg.de tel. : ++49 761 2032559

...ates)? I think I once read something about that, but I cannot remember where. if so, how would be the interpretation of the exp(estimate) ? would there be a change of the interpretation of the ANOVA table (or is the ANOVA table not really helpful at all?). thanks for your time. cheers, 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 correlation matrix as basis. I found the same problem with rotated values (varimax rotation and rtex=T

...e (Paul Murrell) 88. Re: Bug in "is" ? (Michael Grant) 89. Re: R-2.7.2 infected? (Dave DeBarr) 90. Re: histogram-like plot - multiple bars side by side *solved* (J?rg Gro?) 91. crashes while using Rattle (GTK+) ( Tomislav Pu?a ) 92. Version 2.7.2 GUI acts awkward? (Gregor Rolshausen) 93. snow: Problems with cluster (tolga.i.uzuner at jpmorgan.com) 94. par() default values (Benoit Boulinguiez) 95. Desperatly seeking Parallel R simulation with Windows XP (quant15) 96. calculating weighted correlation coefficients (Elena Wilson) 97. Re: Desperatly seeking Parall...