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Re: Reading into arrays with order > 2 [message #17782 is a reply to message #17718]

Mon, 08 November 1999 00:00

Ivan Zimine
Messages: 40
Registered: February 1999

Member

Hi Steven,

You are trying to read into a subscripted variable which is passed to
readf by value
and not by reference so when readf finishes all3MomData is unchanged.

this should work (assumimg that all3MomData matches the file format,
size+data type)

temp=reform(all3MomData[0,*,*])

for i=0, n_elements(names3Mom)-1 do begin
openr, lun, names3Mom[i], /get_lun
readf, lun, temp
all3MomData[i,*,*]=temp
free_lun, lun
endfor

good luck,
Ivan

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?
>
> Steven
>
> --
>
> Linacre College
> Oxford
> OX1 3JA
>
> 01865 - (2)81229 (W)
> 01865 - 209295 (H)
>
> www.linacre.ox.ac.uk/student_pages/steven_riley

--
Ivan Zimine
Dpt. of Radiology (MRI), Geneva University Hospitals
email: ivan.zimine@physics.unige.ch
tel. : (+41 22) 372 70 70

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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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