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Re: Reading into arrays with order > 2 [message #17718]

Mon, 08 November 1999 00:00

Osamu Sasaki
Messages: 2
Registered: November 1999

Junior Member

Steven Riley wrote:

> Assuming names3Mom is a 1D array of strings (of valid filenames) is there
> any reason why the following code will not read many files into a 3d array?
>
> FOR I=0,1 DO BEGIN
> close,1 & openr,1,names3Mom(I)
> readf,1,all3MomData(I,*,*)
> END
>
> I get no error messages, but when I look at my array it contains no data...?
> I'm quite sure the files being read contain data. Is this some inherent
> problem with readf and arrays with order > 2?

"Subscripted variable references are passed by value.
Parameters passed by value can only be inputs to program units."
(Source: IDL Online Help - Parameter Passing Mechanism)

The following code will work.

sz = SIZE(all3MomData)
buffer = ???ARR(sz(2), sz(3)) ; ??? is data type (INT, FLT etc.)

FOR I=0,1 DO BEGIN
close,1 & openr,1,names3Mom(I)
readf,1,buffer
all3MomData(I,*,*) = buffer
END

--------------------------------
May the Force be with you.
Osamu Sasaki as Dasaki
E-mail : dasaki@pc.highway.ne.jp

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[Message index]

		Re: Reading into arrays with order > 2 By: Osamu Sasaki on Mon, 08 November 1999 00:00
		Re: Reading into arrays with order > 2 By: Phil Aldis on Mon, 08 November 1999 00:00
		Re: Reading into arrays with order > 2 By: Ivan Zimine on Mon, 08 November 1999 00:00

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