[R] null plotting symbol ?
spencer.graves at pdf.com
Mon May 5 23:09:00 CEST 2003
The following produced symbols of different shapes, sizes, and colors in
plot(1:4, pch=1:4, col=1:4, cex=1:4)
The same command to S-Plus 6.1 generated a plot with one symbol, color
and size, complaining, "Too many values for parameter" pch, col, and cex.
hth. spencer graves
Peter Dalgaard BSA wrote:
> tblackw at umich.edu writes:
>>I am calling plot() with argument pch as a vector of numeric
>>symbol codes, the same length as x and y. Is there some code
>>which produces no symbol - a blank - so that I can come back
>>with a second call to points() and fill in these locations
>>using a different fill color and a different symbol size ?
>>There's always a work-around, but both x and y are generated
>>on the fly by calls to cumsum(), so it's inconvenient to put
>>NAs into either x or y to suppress plotting that way. Guess
>>I should *try* mixing numeric and character symbol codes,
>>although the example in help("points") explicitly uses a list
>>at that point.
> Doesn't NA work there??
> works for me on Linux, but there could be device dependencies.
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