RE: [R] How to convert color to black & white

From: <OlsenN_at_pac.dfo-mpo.gc.ca>
Date: Sat 14 May 2005 - 11:05:53 EST


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@stat.math.ethz.ch
To: R-help@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



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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 Received on Sat May 14 11:10:48 2005

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