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Re: How to read data with format codes? [message #70167 is a reply to message #70069]

Sat, 13 March 2010 18:03

R.G.Stockwell
Messages: 163
Registered: October 2004

Senior Member

"Adam Solomon" <ramparts@gmail.com> wrote in message
news:e5bdbfda-121a-41fb-8204-57764e0cc70d@g10g2000yqh.google groups.com...
On Mar 13, 8:04 pm, David Fanning <n...@dfanning.com> wrote:
> Adam Solomon writes:
>> Hi all, I've been pulling my hair out over using readf with a format
>> code. So I have a data file with three columns of floats, all
>> separated by a |. Here's an example:
>
>> | 355.9559189095| -79.4625574877| 0.279817 |
...
> rows = File_Lines('example.dat')
> data = DblArr(3,rows)
> oneLine = ""
> OpenR, lun, 'example.dat', /GET_LUN
> FOR j=0,rows-1 DO BEGIN
> ReadF, lun, oneLine
> parts = StrSplit(oneLine, '|', /EXTRACT)
> data[*,j] = Double(parts[1:3])
> ENDFOR
> Free_Lun, lun

Yep. Always use the same rules to read, as you do to write.
If they wrote it with a format, you read it with the same format.
If they wrote "stuff" and then "|", then that is how you read it
(as David has shown).

btw, one suggestion. perhaps you can write a Convert program
to read this huge ascii data set once, and write it in a quick binary
format (perhaps as a structure with all pertinent information).

cheers,
bob

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[Message index]

		Re: How to read data with format codes? By: penteado on Sat, 13 March 2010 17:45
		Re: How to read data with format codes? By: Adam Solomon on Sat, 13 March 2010 17:20
		Re: How to read data with format codes? By: penteado on Sat, 13 March 2010 17:19
		Re: How to read data with format codes? By: David Fanning on Sat, 13 March 2010 17:04
		Re: How to read data with format codes? By: Adam Solomon on Sat, 13 March 2010 16:39
		Re: How to read data with format codes? By: Kenneth P. Bowman on Sun, 14 March 2010 10:23
		Re: How to read data with format codes? By: David Fanning on Sat, 13 March 2010 18:10
		Re: How to read data with format codes? By: R.G.Stockwell on Sat, 13 March 2010 18:03

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