Displaying 4 results from an estimated 4 matches for "ppel".
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epel
2005 Nov 28
6
How define global Variable?
...ariable.
My example:
R> a <- "old"
R> test <- function () { a <- "new" }
R> test()
R> a # shoud be "new"
This doesn't work. I would like to modify the variable "a" in a
procedure. How can I do that.
Thank you for helping.
Sven Kn侟ppel (Germany-Berlin)
2007 Apr 24
1
Problem with length of array while calling C from R
...oid Ctest ( double *array )
{ ...
array = (double*) realloc ( array , new_number * sizeof(double) ) ;
...
}
The length of "array" will be compute in C.
At the end save$a has a length of 3 and not the length of the allocated array in C.
What can I do?
Thank you in advance.
Sven Kn?ppel
2009 Jun 15
2
coxph and robust variance estimation
...quot;)
In the single models coxph.fit0 and coxph.fit1 I can use a robust variance estimation.
It seems that the function anova don't use a robust estimation for the analysis of deviance.
My question is, how can I use robust estimation for the analysis of deviance?
With kind regards,
Sven Kn?ppel
--
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2005 Nov 29
1
package kinship - %*%
...doesn't work.
Example:
R> library(kinship)
R> a <- cbind(1:2,rnorm(2))
R> a%*%a
Error message:
Fehler in a %*% a : keine anwendbare Methode f侟r "%*%"
The Message in English: Error in a %*% a: no applicable message for
"%*%".
What can I do?
Thank you.
Sven Kn侟ppel (Germany - Berlin)