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 #32106 is a reply to message #32020]

Tue, 10 September 2002 23:33

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

Don J Lindler wrote:
> "shih I Chun" <icshih@astro.soton.ac.uk> wrote in message
> news:all9bs$9pp$1@aspen.sucs.soton.ac.uk...
>
>> Hi,
>>
>> READCOL is a procedure in the IDL Astronomy Library. I usually use it to
>> read ASCII files for further analysis.
>>
>> The program also indeicates the amount of lines in the file. My question
>> then is how to retrieve this information so that I can use it in my
>> own program?
>>
>
>
>
> If you are only interested in how many valid lines are read, try:
>
> readcol, 'filename', var1, ...
> nlines = n_elements(var1)
>
> Good luck,
> Don
>
>

Dear all

this routine is platform dependent because it uses a unix shell command.
I like unix but it's not a problem for idl to determine this itselfs.

Perhaps you can try the routine file_line I have defined in 1996 and
which was improved later by Paul Krummel. You can find this routine by
David at http://www.dfanning.com/tip_examples/file_line.pro

Or the master one at our icg library.
The improvements are different. (Paul has added a lot of comments)

http://www.fz-juelich.de/icg/icg-i/idl_icglib/idl_source/idl _html/dbase/download/fileline.tar.gz
or as idl 5.5 binary
http://www.fz-juelich.de/icg/icg-i/idl_icglib/idl_source/idl _html/dbase/download/fileline.sav

If you have a look at the actual Ascii import thread you get much more
diskussions about this theme.

regards

Reimar

--
Reimar Bauer

Institut fuer Stratosphaerische Chemie (ICG-I)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
------------------------------------------------------------ -------
a IDL library at ForschungsZentrum Juelich
http://www.fz-juelich.de/icg/icg-i/idl_icglib/idl_lib_intro. html
============================================================ =======

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 17:53:30 PDT 2025

Total time taken to generate the page: 0.00504 seconds