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Re: Read large ascii file quickly [message #74295 is a reply to message #74294]

Thu, 06 January 2011 15:06

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Paul Magdon writes:

> I print the counter just to make sure something is working.
>
> Here are a couple of lines of the ascii:
>
> 0.050249,0.058117,0.029660,0.097091,0.358593,1
> 0.051483,0.061990,0.030229,0.095512,0.371539,1
> 0.055431,0.062700,0.031565,0.090342,0.382935,1

Well, then I would do it like this:

OpenR, lun, 'file.dat', /Get_Lun
data = Intarr(5000*5000)
ReadF, lun, data, Format='(44x,I0)'
Free_Lun, lun
data = Reform(data, 5000, 5000)

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]

		Re: Read large ascii file quickly By: Kenneth P. Bowman on Sun, 09 January 2011 12:08
		Re: Read large ascii file quickly By: David Fanning on Fri, 07 January 2011 15:19
		Re: Read large ascii file quickly By: Kenneth P. Bowman on Fri, 07 January 2011 14:40
		Re: Read large ascii file quickly By: jeanh on Fri, 07 January 2011 09:11
		Re: Read large ascii file quickly By: David Fanning on Fri, 07 January 2011 07:15
		Re: Read large ascii file quickly By: edward.s.meinel@aero. on Fri, 07 January 2011 06:39
		Re: Read large ascii file quickly By: penteado on Fri, 07 January 2011 04:27
		Re: Read large ascii file quickly By: Paul Magdon on Fri, 07 January 2011 04:01
		Re: Read large ascii file quickly By: MC on Fri, 07 January 2011 02:29
		Re: Read large ascii file quickly By: David Fanning on Thu, 06 January 2011 16:06
		Re: Read large ascii file quickly By: penteado on Thu, 06 January 2011 15:29
		Re: Read large ascii file quickly By: David Fanning on Thu, 06 January 2011 15:06
		Re: Read large ascii file quickly By: Kenneth P. Bowman on Thu, 06 January 2011 14:52
		Re: Read large ascii file quickly By: Paul Magdon on Thu, 06 January 2011 14:54
		Re: Read large ascii file quickly By: penteado on Thu, 06 January 2011 14:20
		Re: Read large ascii file quickly By: jeanh on Thu, 06 January 2011 14:07
		Re: Read large ascii file quickly By: penteado on Thu, 06 January 2011 13:57
		Re: Read large ascii file quickly By: penteado on Thu, 06 January 2011 13:53

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