Hi all,
I'm still a bit new to R and I'm trying to figure something out. I have
the solution but the solution is what a C programmer would do :-) and I
was wondering if someone could tell me the R way of doing it...
What I have is a vector x of length |x|. And a matrix y of size m rows
and n columns where n = |x|. I want to plot m * n points on a graph so
that the x-coordinates are from x and the y coordinates are from y.
I can plot x with the mean of each column of y as: plot (x,mean(y)).
But, to do what I want, I had to write this pair of for loops:
for (i in 1:dim(y)[1]) {
for (j in 1:length(x)) {
points(x[j],y[i,j])
}
}
to add the points. I think there must be a better way using some
variant of apply or matlines. Even after reading the docs, I'm still
scratching my head a bit... Or maybe I copy x out so that it is of size
m by n?!? Any thoughts on what an R user would do here? Thanks!
Ray
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