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Re: Read large ascii file quickly [message #74287 is a reply to message #74283]

Fri, 07 January 2011 07:15

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

edward.s.meinel@aero.org writes:

> You could try all of the above suggestions; you could even use
> READ_ASCII. But, there is no two ways about it -- reading ascii files
> is slow. Always has been, always will be.

Well, I don't know about that. Reading ill-formed ASCII
files is slow, *because* you have to do it in a loop,
as READ_ASCII does. But, if you have well-formed
ASCII input (usually this means written with some kind
of format statement), I've never found IDL to be slow reading it.

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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