[R] Generating data with a certain correlation length

2005-10-19 Thread Roy Werkman
Hi, Can anyone help me with following? I want to write a program which does following: for a 2dim surface generate random data, for certain points on that surface, for which a certain correlation length exists. Thanx, Roy -- The information contained in this communication and any

[R] Plotting greek symbols in plot titles, labels, etc.

2005-07-14 Thread Roy Werkman
Hi, Can anyone please tell me how to use the escape sequences (e.g. \\*a for alfa) for plotting Greek symbols in for example plot titles? I have read the reference manual, but can't seem to get it to work. Thanx! Roy -- The information contained in this communication and any

[R] Question about statistics

2005-07-06 Thread Roy Werkman
) is the sd over the matrix with the column averages subtracted. My question: how can I calculate the confidence interval on sd(coco)? I would really appreciate your help, Roy Werkman -- The information contained in this communication and any atta...{{dropped

[R] Chi square convolution?

2005-06-15 Thread Roy Werkman
Hi, I want to determine the confidence interval on the sum of two sigma's. Is there an easy way to do this in R? I guess I have to use some sort of chisquare convolution algorithm??? Thanx, Roy -- The information contained in this communication and any atta...{{dropped}}

[R] Question on statistics

2005-03-23 Thread Roy Werkman
Hi, Can anyone help me with the following (although not directly correlated to R functionality)? I have been looking on the internet but can not find the answer. My question: what is the variation on the mean of a limited distribution (total N points normally distributed), when I have a small

RE: [R] Question on statistics

2005-03-23 Thread Roy Werkman
Ehh, by limited distribution, I meant to say a population of N points. ... -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roy Werkman Sent: Wednesday, March 23, 2005 10:22 AM To: r-help@stat.math.ethz.ch Subject: [R] Question on statistics Hi, Can

[R] Question about biasing in sd()???

2005-03-09 Thread Roy Werkman
Hi, Can anyone help me with the following. I have been using R for Monte Carlo simulations and got some results I couldn't explain. Therefor I performed following short test: -- mean.sds - NULL sample.sizes - 3:30 for(N in sample.sizes){ dum - NULL for(I in 1:5000){ x -

[R] default directory RGui for windows NT

2003-08-14 Thread Roy Werkman
Hello, Can anyone tell me how to change the default directory in RGui for windows NT? Thanx, Roy __ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help