hi all,
suppose I have a file with several columns, and I want to plot all points
that meet a certain condition (i.e. all points in columns A and B that have
a value greater than such and such in column C of the data) in a new but
random color. That is, I want all these points to be colored differently
but I dont care what color. The only concern is that the points will be
colored as differently from each other as possible.
The specific example I have is a file with three columns, X, Y and ID. I
want to plot all rows from X, Y (i.e. all points) that have the same value
(say 1) in their ID column as one color, all points from X, Y that have the
same ID column value (say 2) as a different color, etc. I dont know ahead
of time how many values the ID column will have so I can't write a separate
plot statement for each of these sets of X, Y rows that have the same ID
value.
Is there a way to express this in R?
thank you.
Is there a way to do this?
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
