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hi! i have a little problem: my data's matrix has 1093 rows and 3 columns. i'd like to extract each rows.. something like this: ht= my matrix Dt=(???)=a vector with t=1,2...1093 what can i do? thank you! Vincenzo -- View this message in context: http://www.nabble.com/extractor-rows-from-a-matrix-tf3913088.html#a11094459 Sent from the R help mailing list archive at Nabble.com.

Good morning, I keep copies my .RData file in different directories for different projects on Windows XP. There is an icon on my desktop for each project so all I have to do is click on the icon to open R for a specific project, i.e. a specific .RData file. How do I change to another .RData file from within R without first closing R? Thanks, Walt Paczkowski

Hello all, I am trying to figure out an optimal linear model by using stepwise regression which requires partial f-test, I did some Googling on the Internet and realised that someone seemed to ask the question before: Jim Milks <jrclmilks at joimail.com> writes: > Dear all: > > I have a regression model that has collinearity problems (between > three regressor variables). I

...ut it is quite cumbersome to merge the files and still there is some loss (eg. warnings). I wondered that I only found this thread from 2003(!) related to this topic: http://finzi.psych.upenn.edu/R/Rhelp02a/archive/13971.html however I am using R on MS Windows - no |tee, no ESS... Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

...worth doing so? My function(s) to be minimized are polynomial functions of tens of variables - let say 10 - 60 variables, all of them constrained to the (0,1) interval. Is it even possible and meaningfull to attempt such minimization? (Suppose I have good starting values.) Thaks, Petr -- Petr Klasterecky Dept. of Probability and Statistics Charles University in Prague Czech Republic

Full_Name: Petr Klasterecky Version: 1.8.1 OS: Windows XP, Linux Submission from: (NULL) (195.113.27.212) The isoreg() function causes R to crash when called repeatedly. Consider the following simple script: { library(modreg) N <- 10 x <- rnorm(N) print("Original x values:") print(x) for(n in (1:N)){pri...