I'm a newbie to R and I was hoping someone could answer a simple question. I
want to read in an ASCII file with 3 columns - x,y,z. Let's say there is a lot
of data - 100,000 entries. I then want to histogram x values that pass
arbitrary (and complicated) cuts on y and/or z. Likewise, I want to make a
scatterplot with x and y, with a cut on z values. Perhaps you have to redefine
the vectors first.
I'm thinking along the lines of
hist(x) for y>0 .and. sqrt(z)<4
or
plot(x,y) for x>0 .and. y>0 .and.z**2 > 100
I cant find this simple task in a first perusal of some of the tutorials. Any
suggestions you could give would be helpful.
Thanks in advance.
Erik Ramberg
Erik Ramberg
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