Displaying 2 results from an estimated 2 matches for "sample20".
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sample2
2004 Jan 07
2
problem assigning an array to a variable in a data frame
...School)
> attach(MathAchieve)
> mses <- tapply(SES, School, mean)
> detach(MathAchieve)
> Bryk <- as.data.frame(MathAchieve[, c("School", "SES", "MathAch")])
> names(Bryk) <- c("school", "ses", "mathach")
> sample20 <- sort(sample(7185, 20))
> Bryk$meanses <- mses[as.character(Bryk$school)]
> Bryk[sample20,]
Error in as.data.frame.default(x[[i]], optional = TRUE) :
can't coerce array into a data.frame
>
This is with R 1.8.1 under Windows 2000. The same code works fine with R
1....
2006 Mar 14
1
MEMORY limit in R
I sent this to Bioconductor, but I think it is more of an R listserv
question, because of memory allocation trouble
I am having trouble getting the function heatmap() to work on the following
gene expression
> dim(SAMPLES_log)
[1] 12626 20
sample1 sample2...................sample20
gen1
gen2
gen3
....
gen12626
I have converted SAMPLES_log to a numeric matrix using:
as.matrix(SAMPLES_log)
when I use the following command:
heatmap(SAMPLES_log)
Error: cannot allocate vector of size 622668 Kb
In addition: Warning messages:
1: Reached total allocation of 1022Mb: see help(me...