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Re: A very simple FORMAT question [message #39111 is a reply to message #39092]

Thu, 22 April 2004 02:06

Chris Lee
Messages: 101
Registered: August 2003

Senior Member

In article <4086EE70.9070707@ya.com.spam>, "Unknown" <andry@ya.com.spam>
wrote:

> Hi all,
> ------------------------ test.datos ----------------------------
> |020922 10:00:00 | 339| 348| 63| 356| 400| 88|
> |020922 10:00:00 | 339| 348| 63| 356| 400| 88|
> -----------------
> SPAWN, "wc -l "+ flnm+ " | awk '{print $1}'", lineas
> ...
> READF, 1, data, format= '(1x,i6,3(1x,i2),4x,7(1x,i6))'

Hi,

The line counting line confused me, I use a function called FILE_LINES
(I'm not sure if it's local or not, it appears to be undocumented if it's
a library function).

As for the formatting, it works fine for single line reads. So you can
either read one line at a time or use STRSPLIT on each line (which can
then be read in all at once)
e.g.
flnm= 'test.datos'
n_data=10
n_lines=file_lines(flnm)
d=strARR(n_lines)
data=intarr(n_data,n_lines)

OPENR, 1, flnm
readf,1,d
CLOSE,1

for i=0, n_lines-1 do $
data[*,i]= fix(strsplit(d[i],'[ :|]',/regex,/ex))

I don't know why the FORMAT is broken, only that READF seems to lose its
position in the file and applies the format to the wrong string.

The 'missing second zero' is actually the first zero (the minutes in the time
string), which is being used as the the third dummy argument in the
format string. After that, everything blows up.

Chris.

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[Message index]

		Re: A very simple FORMAT question By: Christopher Lee on Sat, 24 April 2004 04:26
		Re: A very simple FORMAT question By: Andry William (Please on Fri, 23 April 2004 11:38
		Re: A very simple FORMAT question By: Andry William (Please on Fri, 23 April 2004 11:35
		Re: A very simple FORMAT question By: Chris Lee on Fri, 23 April 2004 04:18
		Re: A very simple FORMAT question By: Chris Lee on Thu, 22 April 2004 02:06
		Re: A very simple FORMAT question By: wmconnolley on Thu, 22 April 2004 01:20
		Re: A very simple FORMAT question By: Andry William (Please on Wed, 21 April 2004 17:29
		Re: A very simple FORMAT question By: Andry William (Please on Wed, 21 April 2004 17:35
		Re: A very simple FORMAT question By: wmconnolley on Wed, 21 April 2004 12:38
		Re: A very simple FORMAT question By: David Fanning on Wed, 21 April 2004 12:31

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