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Re: IDL and me! [message #45560 is a reply to message #45559]

Wed, 21 September 2005 08:11

Antonio Santiago
Messages: 201
Registered: February 2004

Senior Member

Liberum wrote:
> Hi Guys and Gals,
>
> As a nascent IDL user I have come across a little problem that really
> chaps my hide! Any help would really be appreciated!
> Consider the following file-reading code:
>
> OPENR, LUN, file, /GET_LUN
> s = ""
> FOR i = 0, n_lines -1 DO BEGIN
> READF, LUN, s ; reads the file line by line into string s
> d = STRSPLIT(s, /EXTRACT)
> col1 = d[0] & col2 = d[1] & col3 = d[2] & col4 = d[3]
> IF FIX(col1) EQ -10 THEN bias[i] = 0
> IF FIX(col1) EQ -5 THEN bias[i] = 1
> IF FIX(col1) EQ -1 THEN bias[i] = 2
> IF FIX(col1) EQ 0 THEN bias[i] = 3
> IF FIX(col1) EQ 1 THEN bias[i] = 4
> IF FIX(col1) EQ 5 THEN bias[i] = 5
> IF FIX(col1) EQ 10 THEN bias[i] = 6
> cth[i] = LONG(col2)
> occur[i] = LONG(col3)
> pixels[i] = LONG(col4)
> hist_data[bias[i], cth[i] - 1] = FLOAT(occur[i])/pixels[i]*100.
> i += 1
> ENDFOR
> FREE_LUN, LUN
>
> Now all I'm trying to do is to read the contents of this file into an
> array. Now when I run this script I get:
>
> % Attempt to subscript D with <INT ( 1)> is out of range.
>
> Now how can this be when d has 4 elements and I have not looped outside
> of [0, 3] ????????????
>
> Sincerely,
> Lib
>

Perhaps ASCII_TEMPLATE can be useful for you.

--
-----------------------------------------------------
Antonio Santiago Pï¿½rez
( email: santiago<<at>>grahi.upc.edu )
( www: http://www.grahi.upc.edu/santiago )
( www: http://asantiago.blogsite.org )
-----------------------------------------------------
GRAHI - Grup de Recerca Aplicada en Hidrometeorologia
Universitat Politï¿½cnica de Catalunya
-----------------------------------------------------

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[Message index]

		Re: IDL and me! By: Timm Weitkamp on Wed, 21 September 2005 08:40
		Re: IDL and me! By: Paolo Grigis on Wed, 21 September 2005 08:30
		Re: IDL and me! By: Antonio Santiago on Wed, 21 September 2005 08:11
		Re: IDL and me! By: David Fanning on Wed, 21 September 2005 07:45
		Re: IDL and me! By: Craig Markwardt on Wed, 21 September 2005 07:36

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