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Re: problem with plot [message #56683 is a reply to message #3674]

Mon, 12 November 2007 07:11

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

nakisa writes:

> I am new in IDL , I want to plot data which restored in txt file and
> plot by below code.
>
>
> pro test
> A_x=fltarr(1)
> A_y=fltarr(1)
> fn='F:\test.txt'
> openr,1,fn
> repeat begin
> readf,1,x,y
> ;A_x(*)=x
> ;A_y(*)=y
> plot,A_x,A_y
> endrep until eof(1)
> close,1
> ;plot ,A_x,A_y,PSYM=4,Title="test"
> END
>
>
> It runs ,but plot only a frame!! Can anybody say me where the error
> is

Oh, dear. How about something like this:

PRO test
datafile = 'F:\test.txt'
rows = File_Lines(datafile)
data = FltArr(2,rows)
OpenR, lun, datafile, /Get_LUN
ReadF, lun, data
Free_Lun, lun
x = Reform(data[0,*])
y = Reform(data[1,*])
Plot, x, y
END

Cheers,

David

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

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[Message index]

		Problem with PLOT_OO ticks By: mallozzi on Mon, 06 March 1995 06:09
		Re: problem with plot By: David Fanning on Mon, 12 November 2007 07:11
		Re: problem with plot By: Allan Whiteford on Tue, 13 November 2007 08:22
		Re: problem with plot By: nakisa on Mon, 12 November 2007 21:23

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