| Re: match 2 files [message #54121] |
Mon, 21 May 2007 05:46 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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sujian@gmail.com writes:
> I cant find the solution in Coyote's Guide to IDL Programming. Should
> I try C for this part?
Before you go to the trouble of learning four or five
new programming languages to solve this problem, I would
try something simpler. Get a sheet of paper, and with a
pencil write down the six or seven steps that you would have
to take to solve this problem. Label the list "Algorithm".
Then, study the list and see if you can implement each
step in whatever programming language you have at hand.
Who knows. It could led to a solution. At the very least,
it might engender some useful questions. :-)
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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| Re: match 2 files [message #54123 is a reply to message #54121] |
Mon, 21 May 2007 00:20  |
Ingo von Borstel
Messages: 54
Registered: September 2006
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Member |
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Hi,
>
> I cant find the solution in Coyote's Guide to IDL Programming. Should
> I try C for this part?
In general you don't find generic solutions for individualized problems
:). It always requires to do at least something yourself - or at least
to spend some money :o
Just a random suggestion:
write yourself a function that:
- reads the files into arrays
- compares the proper entries
- passes on the corresponding entry.
Details of implementation depend upon your files, especially how
well-structured they are, and data types.
Regards,
Ingo
--
Ingo von Borstel <newsgroups@planetmaker.de>
Public Key: http://www.planetmaker.de/ingo.asc
If you need an urgent reply, replace newsgroups by vgap.
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| Re: match 2 files [message #54125 is a reply to message #54123] |
Sun, 20 May 2007 21:21 |
sujian
Messages: 10
Registered: May 2007
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Junior Member |
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On May 20, 11:06 pm, David Fanning <n...@dfanning.com> wrote:
> suj...@gmail.com writes:
>> to do:
>
>> compare the assigned numbers in 2 columns in 2 data files.
>> if they are satisfied with some criteria,
>> get the number of the first column in that line.
>
>> do you have any idea?
>
> No, do you? What have you tried?
>
> 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.")
I cant find the solution in Coyote's Guide to IDL Programming. Should
I try C for this part?
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| Re: match 2 files [message #54127 is a reply to message #54125] |
Sun, 20 May 2007 20:06 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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sujian@gmail.com writes:
> to do:
>
> compare the assigned numbers in 2 columns in 2 data files.
> if they are satisfied with some criteria,
> get the number of the first column in that line.
>
> do you have any idea?
No, do you? What have you tried?
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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