Hi R-users and R-experts:
Is it posible to make transparent graphics on R?
I mean, one graphic with colors over another one
but both visible with transparent options?
Thank you for your help
Kenneth
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Kenneth -
Using base package graphics, use plot() on the first call,
then either points() or lines() on subsequent calls to build
up a single plot, layer by layer. Each call can use an argument
col=... . However, the colors themselves are not transparent,
AFAIK, so that where two symbols
Yes, Dr. Blackwell:
What I mean is the second part:
If you need to give the appearance of
color mixing, you will have to identify which points coincide,
and plot those again using a third color. I don't use lattice
graphics, but I presume the situation is much the same.
Is it possible with
Kenneth Cabrera wrote:
Is it possible with pixmap library or image options?
Thank you again for your help.
If you have NA values in a matrix, they will be transparent when you
use image() with the add=T option.
Example:
#make a matrix with all numbers, and show it:
Hi
Kenneth Cabrera wrote:
Hi R-users and R-experts:
Is it posible to make transparent graphics on R?
I mean, one graphic with colors over another one
but both visible with transparent options?
In general this is not possible, but ...
If you are prepared to work with grid graphics, and produce
