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

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Mon 16 May 2005 - 22:42:18 EST

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@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@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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>>
>>
> 
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Mon May 16 22:45:28 2005

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