something like
matplot2(matrix(1:6,3,2),matrix(7:12,3,2),pch=21,bg=c(2,3),type='b')
does not yield the expected (at least by me) result: only the points on the first line get (successively) background colors for the plotting symbols, the second line gets no background color at all for its plotting symbols.
I think the natural behaviour should be two curves which (for the example given above) symbol-background colors 2 and 3, respectively (as would be obtained by a suitable manual combination of 'plot' and 'lines'). the modification of the matplot code to achieve this behaviour is obvious as far as I can see (adding 'bg' to the explicit arguments of matplot and handling similar to 'lty', 'cex' and the like inside the function including transfer to 'plot' and 'lines' argument list).
is the present behaviour a bug of 'matplot' or is it for some reason intended behaviour?
regards,
joerg
______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
