[R] plotting points in random but different colors based on condition

[Jonathan Bleyhl]

I guess I didn't mention that I'm trying to do this in ggplot2 where I have
my color set up via:

geom_point(aes(colour = Date))

Not sure how to implement your suggestion within the confines of ggplot2.


Jim Lemon-2 wrote:
> 
> On 10/10/2009 06:41 PM, Jim Lemon wrote:
>> Oops, should be:
> 
>> gimmeDiffCol<-function(oldcol) {
>>  rgbcomp<-col2rgb(oldcol)
>>  if(rgbcomp[1,1]<127) newred<-sample(rgbcomp[1,1]:255,1)/255
>>  else newred<-sample(0:rgbcomp[1,1],1)/255
>>  if(rgbcomp[2,1]<127) newgreen<-sample(rgbcomp[2,1]:255,1)/255
>>  else newgreen<-sample(0:rgbcomp[2,1],1)/255
>>   if(rgbcomp[3,1]<127) newblue<-sample(rgbcomp[3,1]:255,1)/255
>>  else newblue<-sample(0:rgbcomp[3,1],1)/255
>>  return(rgb(newred,newgreen,newblue))
>> }
>>
> Jim
> 
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