[R] Plot colors

[Julian Burgos]

You could do something like this:

mydata=c(1,2,1,1,6,7,-1,-1,5,-1)
color= as.numeric(mydata== -1) +1
plot(mydata,col=color)

This will give you a plot where the -1's are in red (color = 2) and the 
other numbers in black (color=1).

Julian


uv wrote:
> Hi. I am plotting graphs for values ranging between -1 and 10, for example:
> (1,2,1,1,6,7,-1,-1,5,-1)
> I am trying to plot the graphs so that the points with value of -1 will be
> in one specific color, and the rest of the points will be in one different
> specific color. I would be grateful for any idea of how to do that in two
> colors.
> Thanks for any hint.
>   

-- 
Julian M. Burgos

Fisheries Acoustics Research Lab
School of Aquatic and Fishery Science
University of Washington

1122 NE Boat Street
Seattle, WA  98105 

Phone: 206-221-6864