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Re: IDL log scale issues [message #85973 is a reply to message #85972]

Sun, 22 September 2013 13:24

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

foord14@bu.edu writes:

> Now I am receiving
> % PLOT: Warning: Infinite plot range.
>
> Here is my code:
>
> x and y are both arrays.
>
> plot, x, y, psym = 7, /xlog, /ylog, XStyle = 1, YStyle = 1, xrange=[0,16], yrange = [10,10000], Title = 'Run 1: Counts versus Time', XTitle = 'Time (minutes)', YTitle = 'Counts'

Yes, the log of zero is infinity. It's a math thing. ;-)

Try going from 1 to 16 or 1e-6 to 16, something like that.

You are probably not going to care much for the labeling of log axes.
Here is some reading you can do that might help.

http://www.idlcoyote.com/graphics_tips/minorlog.html

Cheers,

David

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

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[Message index]

		IDL log scale issues By: Phys_Gurl on Sun, 22 September 2013 11:51
		Re: IDL log scale issues By: David Fanning on Sun, 22 September 2013 12:08
		Re: IDL log scale issues By: Phys_Gurl on Sun, 22 September 2013 12:43
		Re: IDL log scale issues By: David Fanning on Sun, 22 September 2013 13:24

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