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...data[i,5:9]) doesn't print anything! it processes for awhile, so i know it's doing the calculations. t.test(data[1,1:4],data[1,5:9]) works fine! prints to the screen as i'd expect. i have checked and double checked that sink() is empty. please also send your reply to jbdunsmo at utmb.edu. i receive the digest version of the mailing list. thanks for any help, jason

i'd like to use the C interface to R in a program i'm writing. as a starting point, i'm trying to create a very simple C program that uses R. i've read the R documentation on this, but i'm having trouble figuring out where SEXP is defined and how to use it. i noticed someone else on this list also tried to use the C interface, but they ran into similar problems:

Hello again, I am trying to create a color scale plotting the hydroathy index (y-axis) versus residue (x-axis) - each residue (1-100) has a value between 0-1. I've been trying to create a scale where: 0-0.499: increasing intensity of red 0.5- yellow 0.51 - 1 increasing intensity of green. THis is in lieu of a line graph. I'm not sure which type of plot to begin with - I attempted to

From: Leitch, Matthew C. Sent: Monday, January 24, 2011 6:53 PM To: 'info at network-theory.co.uk' Subject: question about the pt() calculation Hello Thank you for your time. I am a graduate student at the University of Texas Medical Branch, and I was wondering if you could help me with a R program I am writing. I have some data that is stored a file that has 1733 rows and 4 columns.

I am attempting to use package boot to summarize and compare the performance of three models. I'm using R 2.13.0 in a Win32 environment. My statistic function returns a vector of 6 values, 3 of which are error rates for different models, and 3 are pairwise differences between those error rates. It looks like: multiEst<-function(dat,i) { .... c(E1,E2,E3,E2-E1,E3-E1,E3-E2); }