[R] superposing a group of x,y-plot points

Anna-Maria Tyrisevä anna-maria.tyriseva at helsinki.fi
Sat Apr 19 18:43:18 CEST 2008


please, could somebody tell me how can I superpose a group of x,y-plot
points (using different symbols) that belong to a certain class of factor z?
Can't find a solution despite of hours of reading.

Thanks in advance,


More information about the R-help mailing list