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Re: problem with reading formated file [message #10154 is a reply to message #10137]

Sat, 11 October 1997 00:00

rivers
Messages: 228
Registered: March 1991

Senior Member

In article <343f0158.1848870@news-server>, ccampo1@nospamsan.nospamrr.com (Chris and Cathy Campo) writes:
> On Fri, 10 Oct 1997 19:25:54 +0300, Pavel Eiges <eiges@chat.ru> wrote:
>> i have a formated file like this:
>> ===========================
>> 1877383765 1.778
>> 1877384765 1.685
>> 1877385765 1.599
>> 1877386765 1.599
>> 1877387765 1.685
>> ===========================
>> and i need to load it into two arrays. the first array is LONG-type,
>> the second one - FLOAT-type. How i can do this?
>> ("READF, file, Time, Data" does not work).
>
>
> try this:
> n=5
> time = lonarr(n)
> data = fltarr(n)
> for i = 0, n-1 do begin
> readf,file, time(i), data(i)
> endfor

No, this will not work!!! You cannot read into a subscripted array element,
because time(i) is passed by "value" rather by "reference" to readf.

The simplest way to solve the problem is as follows:

n=5
time = lonarr(n)
data = fltarr(n)
temp = fltarr(2, n)
readf, file, temp
time(*) = temp(0,*)
data(*) = temp(1,*)

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Mark Rivers (773) 702-2279 (office)
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Chicago, IL 60637 rivers@cars.uchicago.edu (e-mail)

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[Message index]

		Re: problem with reading formated file By: Clemens v. Mann on Thu, 16 October 1997 00:00
		Re: problem with reading formated file By: rivers on Sat, 11 October 1997 00:00
		Re: problem with reading formated file By: ccampo1 on Sat, 11 October 1997 00:00
		Re: problem with reading formated file By: David Foster on Fri, 10 October 1997 00:00
		Re: problem with reading formated file By: Martin Schultz on Fri, 10 October 1997 00:00

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