comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » readcol procedure

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: readcol procedure [message #32154 is a reply to message #32020]

Fri, 13 September 2002 08:50

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Pavel A. Romashkin (pavel_romashkin@hotmail.com) writes:

> I am sorry to disagree.
> I routinely read large (60k-200k rows) ASCII files with unknown number
> of lines. I always use large arrays to read into and never ever use EOF
> with line by line reading.
> All I have to do is to catch I/O error in case my buffer array is too
> big as my reading approaches the end of file, then look up what size it
> should have actually been, resize the buffer, then read the last portion
> of file only. Reading a file with 80k lines using this method takes
> about 0.1 s.
> Take a look:
> http://www.ainaco.com/idl/idl_library/read_ascii_columns.pro

Wow. You wrote this, Pavel!? :-)

Cheers,

David

P.S. Let's just say part of being an expert is knowing
who to steal code from. I'll be stealing some of this! :-)

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

Report message to a moderator

[Message index]

		readcol procedure By: shih I Chun on Tue, 10 September 2002 10:15
		Re: readcol procedure By: Liam E. Gumley on Thu, 12 September 2002 08:43
		Re: readcol procedure By: R.Bauer on Thu, 12 September 2002 11:39
		Re: readcol procedure By: David Fanning on Thu, 12 September 2002 08:59
		Re: readcol procedure By: R.Bauer on Wed, 11 September 2002 23:42
		Re: readcol procedure By: David Fanning on Wed, 11 September 2002 14:12
		Re: readcol procedure By: Wayne Landsman on Wed, 11 September 2002 07:54
		Re: readcol procedure By: R.Bauer on Tue, 10 September 2002 23:33
		Re: readcol procedure By: Don J Lindler on Tue, 10 September 2002 13:30
		Re: readcol procedure By: R.Bauer on Sun, 15 September 2002 08:16
		Re: readcol procedure By: Pavel A. Romashkin on Fri, 13 September 2002 12:30
		Re: readcol procedure By: R.Bauer on Fri, 13 September 2002 10:43
		Re: readcol procedure By: Pavel A. Romashkin on Fri, 13 September 2002 09:36
		Re: readcol procedure By: David Fanning on Fri, 13 September 2002 08:50
		Re: readcol procedure By: Pavel A. Romashkin on Fri, 13 September 2002 08:39
		Re: readcol procedure By: R.Bauer on Thu, 12 September 2002 14:05
		Re: readcol procedure By: Liam E. Gumley on Thu, 12 September 2002 12:11

Previous Topic:	duplicate .pro filenames
Next Topic:	Re: duplicate .pro filenames

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 17:30:31 PDT 2025

Total time taken to generate the page: 0.00505 seconds