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Re: Extract numbers from text string [message #75302]

Tue, 22 February 2011 11:46

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

On 2/22/11 12:08 PM, nata wrote:
> Hi folks,
>
> Which is the best way to extract the numbers of the following string ?
> HELP, /MEM, OUTPUT=str
> PRINT, str
>
> I'm trying something like:
> str_out=STREGEX(str,'[0-9]*',/EXTRACT)
>
> But nothing happens...
> Any suggestions ? Thanks in advance,

Try using + instead of *:

IDL> print, str
heap memory used: 1302373, max: 1305378, gets: 1518, frees:
609
IDL> print, stregex(str, '[0-9]+', /extract)
1302373

Also, check out the MEMORY function.

Mike
--
www.michaelgalloy.com
Research Mathematician
Tech-X Corporation

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