[R] How to convert color to black & white

[Uwe Ligges]

Muhammad Subianto wrote:
> Thank's you very much.
> But I need the plot with color not gray.

So you want a colorful rgb plot, OK, fine with your code below.

Now you want to print it black and white: This is now a question for the 
folks who wrote your printer driver, but not for R-help.

Uwe Ligges


> Best wishes,
> Muhammad Subianto
> 
> On this day 5/14/2005 3:05 AM, OlsenN at pac.dfo-mpo.gc.ca wrote:
> 
>> Muhammad,
>> Here's one option:
>>
>> barplot(1:5,col=gray(seq(0,1,length=5)))
>>
>> Norm Olsen
>> Fisheries and Oceans Canada
>>
>> -----Original Message-----
>> From: r-help-bounces at stat.math.ethz.ch
>> To: R-help at stat.math.ethz.ch
>> Sent: 5/13/2005 11:40 AM
>> Subject: [R] How to convert color to black & white
>>
>> Dear all,
>> Could someone please explain to me how to convert color to black &
>> white.
>> For example:
>> barplot(1:5,col = rainbow(5))
>> Because I need to print my plot to save my ink color printer.
>> I don't want to convert to grayscale, but keep it as an RGB.
>> I  would be very happy if anyone could help me.
>> Thank you very much in advance.
>>
>> Kindly regards,
>> Muhammad Subianto
>>
>> ______________________________________________
>> R-help at 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
>>
>>  
>>
> 
> ______________________________________________
> R-help at 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