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Re: contour plots [message #40394 is a reply to message #22062]

Thu, 05 August 2004 21:04

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Hans Clarke writes:

> Here is some data, which I have stored in Excel:
>
> f Period Gamma
> 6.8 15.7 0.01
> 7 9.9 0.04
> 7.5 6.1 0.17
> 8 4.8 0.34
> 8.5 4 0.56
> 9 3.5 0.81
> 9.5 3.1 1.12
> 10 2.9 1.49
> 10.5 2.6 1.94
> 11 2.4 2.52
> 11.5 2.3 3.29
> 12 2.1 4.39
> 12.5 2 6.26
> 13 1.9 11.05
> 13.3 1.9 37.16
>
> I want to plot, for different f surfaces, Period and Gamma. There is
> probably four times as much data (60 data sets).

Well, assuming you have saved this in a comma
delimited text file, with the first line a header
line, and that you plan to contour the gamma
value and use f as the Y value and period as
the X value, I would do something like this:

OpenR, lun, 'yourfile.dat', /Get_Lun
rows = File_Lines('yourfile.dat)
header = ''
data = FltArr(3,rows-1)
ReadF, lun, header, data
Free_Lun, lun
f = Reform(data[0,*])
period = Reform(data[1,*])
gamma = Reform(data[2,*])
Contour, gamma, period, f, /Irregular, NLevels=10

That should get you started, I guess. :-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Contour plots / ps files By: Simon Webster on Sat, 14 October 2000 00:00
		Re: contour plots By: David Fanning on Mon, 09 August 2004 06:16
		Re: contour plots By: hans.clarke on Mon, 09 August 2004 21:47
		Re: contour plots By: David Fanning on Mon, 09 August 2004 06:15
		Re: contour plots By: hans.clarke on Mon, 09 August 2004 00:00
		Re: contour plots By: hans.clarke on Sun, 08 August 2004 23:57
		Re: contour plots By: hans.clarke on Sun, 08 August 2004 01:03
		Re: contour plots By: David Fanning on Thu, 05 August 2004 21:04
		Re: contour plots By: hans.clarke on Thu, 05 August 2004 20:02
		Re: contour plots By: R.G. Stockwell on Thu, 05 August 2004 08:47
		Re: contour plots By: David Fanning on Thu, 05 August 2004 06:18

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