Hi all:
I get the following error message that I am not able to resolve.
Error in if (const(t, min(1e-08, mean(t)/1e+06))) { :
missing value where TRUE/FALSE needed
It appears right before the last data.frame statement.
Below is the program that simulates data from one way r
Dear:
Thank you very much for your 'generous' help. Overall I have learnt the
limits of the solution to my problem. I was not feeling compfortable how
I was going around with the problem.
Bill and Ted provided a wonderful insight into what I was accomplishing
and provided alternative solutions. The
Great! Thank you very much. Looks R has unlimited possibilities.
Regards,
Ashraf
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter
Dalgaard
Sent: Wednesday, April 13, 2005 4:11 PM
To: Mohammad A. Chaudhary
Cc: r-help@stat.math.ethz.ch
Subject: Re: [R
I am producing 2X2 correlation matrices by a class variable. I need to
extract a vector of correlation coefficients only. I am doing that in a
loop (see below) but I am sure there would be a simpler way. Please
help!
> by(d1[,c(2,3)],d1[,1],cor)
d1[, 1]: 1
c e
c 1.000 0
Hi: Thank you and sorry for getting back late. Your input helped me a
lot. I particularly liked using box.cox. Regards,
Ashraf
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Hi All:
I have to compute bootstrap confidence intervals, the statistic
(incremental cost effectiveness ratio) is computed from two samples
(intervention and control) of different sizes. All the bootstrap
functions that I have seen use one dataset as argument. I may go ahead
and get the desired nu