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Dear list, I have a series of data points which I want to approximate with exactly two linear functions. I would like to choose the intervals so that the total deviation from my fitted lines is minimal. How do I best do this? Thanks! Kamila The information transmitted in this electronic communication...{{dropped}}

...1 [[3]] [1] "REMOVE" [[4]] [1] "REMOVE" If I try this with the entire 40 000 character list, though, I get the "Reached total allocation of 1022Mb: see help(memory.size)" error message. Can someone please give me a hint how to solve this problem correctly? THANKS! Kamila

...rbingly, a PCA yields different results when I run the analysis under Windows and Linux. I open the same workspace (which is on an independent partition) and perform the exact same function (by using the history file). Interestingly, PC1 is the same, but PC2 comes out totally different. Thanks! Kamila Windows: platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 2.1 year 2005 month 12 day 20 svn rev 36812 language R...

Hi! I don't understand this: layout(matrix(c(1:10),5,2),heights=c(1,rep(2,4))) plot(1,1) error in plot.new() : plot region too large Why?????? Thanks! Kamila

...message: install.packages("Matrix",lib="/home/kn52/R-2.5.0/library") Warning message: package 'Matrix' is not available in install.packages("Matrix",lib="/home/kn52/R-2.5.0/library") Other packages work fine. Do I need a newer R version? Thanks, Kamila platform i686-pc-linux-gnu arch i686 os linux-gnu system i686, linux-gnu status major 2 minor 5.0...

Is there a way to plot elliptical shapes? symbols() only provides circles... Thanks! Kamila

Hello, I have been following the thread dated Monday, October 9, 2006 when Kamila Naxerova asked a question about plotting elliptical shapes. Can you explain the equations for X and Y. I believe they used the parametric form of x and y (x=r cos(theta), y=r sin(theta). I don't know what r is here ? Can you explain 1)the origin of these equations and 2) what is r? Sincerely,...