Re: [R] blank plot----how do I make symbols appear

2012-09-28 Thread Ken Knoblauch
Jessica da Silva gmail.com> writes: > I am trying to create a scatterplot, coding each point to one of 5 > populations. I was successful when I did this for one set of data, yet > when I try plotting other data a blank plot appears (although the axes are > labelled and I can fit the regression

[R] blank plot----how do I make symbols appear

2012-09-28 Thread Jessica da Silva
Hi, I am trying to create a scatterplot, coding each point to one of 5 populations. I was successful when I did this for one set of data, yet when I try plotting other data a blank plot appears (although the axes are labelled and I can fit the regression lines from each population). I have tried