Gundala Viswanath wrote:
Dear all,
I have a data that looks like this:
print(dat)
V1 V2
1 -43342073 14
2 -43337730 4
3 -43284676 1
....
11372 75188572 11
11373 75206165 6
11374 75262720 24
What I want to do is to have a barplot where x-axis
is taken from V1 and y-axis taken from V2.
But I only want to plot the those region where V1 >= -500
and <= 500.
But some how this snippet doesn't seem to work:
xlim = c(-500,500)
barplot(as.matrix(dat[dat$V1 >= -500 && dat$V1
<=500,dat$V2]),xlim=xlim,axes=TRUE, main =nm);
You need to change
dat$V1 >= -500 && dat$V1 <=500
to
dat$V1 >= -500 & dat$V1 <=500
and read about the difference between & and &&.
So probably you want something like:
subsetdat <- dat[dat$V1 >= -500 & dat$V1 <=500,]
barplot(subsetdat$V2, names.arg=subsetdat$V1)
Uwe Ligges
What's wrong with my approach.
So yes, I do want the V1 information, hence I am aware that
I dont' want:
plot(hist(dat[dat >=-500 & dat <=500]))
- Gundala Viswanath
Jakarta - Indonesia
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