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Re: Extracting info from the ASCII file with IDL [message #73585]

Thu, 18 November 2010 08:55

penteado
Messages: 866
Registered: February 2018

Senior Member
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On Nov 18, 2:40 pm, Gray <grayliketheco...@gmail.com> wrote:
> Use READCOL from the NASA IDL astronomy library to read the first
> column. Then do n_elements(uniq(data,sort(data))).

Or use the built in read_ascii(). Like:

IDL> a=((read_ascii('unascii.txt')).(0))[0,*]
IDL> print,n_elements(uniq(a[sort(a)]))
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		Re: Extracting info from the ASCII file with IDL By: penteado on Thu, 18 November 2010 08:55
		Re: Extracting info from the ASCII file with IDL By: Kenneth P. Bowman on Thu, 18 November 2010 08:27
		Re: Extracting info from the ASCII file with IDL By: Gray on Thu, 18 November 2010 08:40

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