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Re: Write a vector into a file [message #73414 is a reply to message #73413]

Tue, 09 November 2010 07:36

pgrigis
Messages: 436
Registered: September 2007

Senior Member

On Nov 9, 10:18 am, Paulo Penteado <pp.pente...@gmail.com> wrote:
> On Nov 9, 1:07 pm, David Fanning <n...@dfanning.com> wrote:
>
>> But I think it works for the wrong reasons, and
>> I think there is a danger, especially if the data
>> is not all of the same magnitude, that what ends
>> up in the file is not exactly what you *expect*
>> will end up in the file.
>
> I agree. That way is relying on IDL's guess of how to make a string
> out of the array, which is just intended to be a handy default (and
> most often used interactively for the console). But since we do not
> know what is getting written (might not even be numbers), that is a
> neat generic trick.
>
>> Much better, it seems to me, to do this correctly
>> so that the precision of the data is maintained
>> in the way you specify. Of course, we can't do
>> this "correctly" since the end user hasn't told
>> us anything about his data. It may be he is
>> content with solutions that just look like they
>> work. Many people are. :-)
>
> That is a common problem. Too many are content with always using text
> files, as if none of the binary formats existed or ever were useful.

On the other hand, text format most likely can be read by anyone
in any situations. 20 years down the line a binary format may be
so obsolete that nobody can read it anymore...

Ciao,
Paolo

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[Message index]

		Re: Write a vector into a file By: penteado on Tue, 09 November 2010 07:41
		Re: Write a vector into a file By: pgrigis on Tue, 09 November 2010 07:36
		Re: Write a vector into a file By: penteado on Tue, 09 November 2010 07:18
		Re: Write a vector into a file By: David Fanning on Tue, 09 November 2010 07:07
		Re: Write a vector into a file By: David Fanning on Tue, 09 November 2010 06:37
		Re: Write a vector into a file By: jeanh on Tue, 09 November 2010 06:30
		Re: Write a vector into a file By: penteado on Mon, 08 November 2010 18:08
		Re: Write a vector into a file By: David Fanning on Mon, 08 November 2010 17:56
		Re: Write a vector into a file By: jeanh on Mon, 08 November 2010 17:24
		Re: Write a vector into a file By: David Fanning on Mon, 08 November 2010 17:21
		Re: Write a vector into a file By: MC on Thu, 11 November 2010 18:18
		Re: Write a vector into a file By: MC on Thu, 11 November 2010 18:20
		Re: Write a vector into a file By: Gray on Tue, 09 November 2010 09:01

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