I realized after looking again that you asked for plotting. Since you
only have two points per row, it would be more honest statistically to
plot the values rather than mean and sem.
> dm <-read.table(textConnection(" repeat1 repeat2
+ 1 30 34
+ 2 12 23
+ 3 50 13
+ 4 56 98"), header=TRUE)
> plot(x=1:nrow(dm), y=dm$repeat1, ylim=c(min(dm), max(dm)) )
> points(x=1:nrow(dm), y=dm$repeat2)
On Apr 22, 2009, at 10:26 AM, ANJAN PURKAYASTHA wrote:
I have a data matrix:
repeat1 repeat2
1 30 34
2 12 23
3 50 13
4 56 98
.
I would like to plot for the mean and standard error of mean of
repeat 1 and
repeat2 for each row.
Any pointers on how to do this in R?
TIA,
Anjan
--
=============================
anjan purkayastha, phd
bioinformatics analyst
whitehead institute for biomedical research
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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