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Re: cgHistoplot and multiplot [message #79817 is a reply to message #79816]

Mon, 09 April 2012 14:01

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

DavidL writes:

> I updated cgHistoplot and multiplot to the latest versions. Still I get garbage in output.
> When I plot on the x terminal I see just the x and y axis (and the y axis are not really the same and they both have labels). No data are shown.
>
> When I plot on ps device I see the data. The y axis is in common but with different scales. They both have labels and the title "Relative Frequency".

You are drawing the histogram bars in black. I presume
on your terminal you are drawing in a window with a black
background. The bars might be hard to see. :-)

I would remove the DataColorName keyword from your
cgHistoplot commands and let cgHistoplot choose
an appropriate color. (Or, erase with a white color.)
Does that help?

If you want the Y range to be the same for the two
plots, you can make them the same by using the same
values with the YRANGE keyword.

If you want to turn the Y axes labelling off, set
the YTICKFORMAT to '(A1)', rather than what you have.

This code works for me:

erase
val1 = cgdemodata(5)
val2 = cgdemodata(7)
multiplot,[2,1]
cgHistoplot, val1, yrange=[0,0.5], /FREQUENCY, $
YTICKFORMAT='(A1)', YTitle='', DataColor='opposite'
multiplot
cgHistoplot, val2, yrange=[0,0.5], /FREQUENCY, $
YTICKFORMAT='(A1)', YTitle='', DataColor='opposite'
multiplot,[1,1],/init,/verbose
end

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: cgHistoplot and multiplot By: DAVIDE LENA on Mon, 09 April 2012 15:05
		Re: cgHistoplot and multiplot By: David Fanning on Mon, 09 April 2012 14:01
		Re: cgHistoplot and multiplot By: DAVIDE LENA on Mon, 09 April 2012 13:00
		Re: cgHistoplot and multiplot By: David Fanning on Mon, 09 April 2012 11:53
		Re: cgHistoplot and multiplot By: DAVIDE LENA on Thu, 28 June 2012 10:38
		Re: cgHistoplot and multiplot By: DAVIDE LENA on Thu, 28 June 2012 10:17

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