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Re: Declaring large vectors in IDL [message #70539 is a reply to message #70493]

Tue, 20 April 2010 14:46

fgg
Messages: 67
Registered: April 2010

Member

> If you want to preserve the variable names in your file, then once you
> have an array of variable names from your gettok call, you use
> EXECUTE:
>
> for i=0,n_data-1 do dummy = execute(variable_names[i]+'=
> double(strsplit(data[i],",",/extract)')
>
> where you can replace "double" with whatever type conversion function
> you like.

Hey Gray,

I included 'execute' in the code but it didn't help. When I run the
procedure the variables are not added to the variables view. For
instance, if you run this procedure:

pro test
heads=['a', 'b', 'c']
data = ['1 2 3', '4 5 6', '7 8 9']
for i=0,2 do dummy = execute(heads[i]+'=double(strsplit(data[i],",",/
extract))')
end

"a", "b", and "c" will not be added to the variables view (with values
'1 2 3', '4 5 6', and '7 8 9', respectively). Is that what you
suggested? I replaced the 4th line with:

for i=0,2 do dummy = execute(heads[i]+'= ['+strjoin(strsplit(data[i],/
extract),', ')+']')

...and it didn't work either.

------------------------------------------

pp, you are right. The procedure declaration is missing here but it is
actually included in the original *.pro file. Your suggestion worked.
If I compile this procedure:

pro test, a, b, c
heads=['a', 'b', 'c']
data = ['1 2 3', '4 5 6', '7 8 9']
for i=0,2 do dummy = execute(heads[i]+'= ['+strjoin(strsplit(data[i],/
extract),', ')+']')
end

... and then enter "test, a, b, c" at the IDL prompt, "a", "b", and
"c" are added to the variables view with the respective values. The
only problem is that I'm actually dealing with many different
variables. Is it possible to call "test", getting the variables name
from "heads" (the variable containing the names) instead of typing
each name? (i.e. a, b, c...). If so, I guess the first line of the
procedure would need to be changed as well, right?

Thanks you all for the help!

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[Message index]

		Declaring large vectors in IDL By: fgg on Fri, 16 April 2010 18:17
		Re: Declaring large vectors in IDL By: fgg on Tue, 20 April 2010 15:34
		Re: Declaring large vectors in IDL By: fgg on Wed, 21 April 2010 12:15
		Re: Declaring large vectors in IDL By: David Fanning on Tue, 20 April 2010 15:06
		Re: Declaring large vectors in IDL By: fgg on Tue, 20 April 2010 14:46
		Re: Declaring large vectors in IDL By: Gray on Mon, 19 April 2010 18:32
		Re: Declaring large vectors in IDL By: penteado on Mon, 19 April 2010 17:11
		Re: Declaring large vectors in IDL By: wallabadah on Mon, 19 April 2010 15:33

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