Message-ID: <4284F485.10702@gmail.com>
Date: 2005-05-13T18:40:05Z
From: Muhammad Subianto
Subject: 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