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Re: Most Common IDL Programming Errors [message #59904 is a reply to message #59761]

Fri, 11 April 2008 10:41

R.G. Stockwell
Messages: 363
Registered: July 1999

Senior Member

<savoie@nsidc.org> wrote in message
news:ywkufxtss6b9.fsf@snowblow.colorado.edu...
> "R.G. Stockwell" <nothanks@noemail.com> writes:
>
>
>> a = fltarr(len) + !values.f_nan
>
> What about
> a = make_array(len, value=!values.f_nan)
>
> That's what I use. I'm sure it saves me some computational power by not
> having
> to compute those values I'm just going to overwrite anyway. :)

You know, I am just the kind of person who will end up time testing
those variations. And seeing what operation is faster: fltarr(len) +
!values.f_nan,
fltarr(len) - !values.f_nan, fltarr(len) * !values.f_nan, or
fltarr(len)/!values.f_nan

:)

Cheers,
bob

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[Message index]

		Most Common IDL Programming Errors By: David Fanning on Tue, 08 April 2008 17:13
		Re: Most Common IDL Programming Errors By: Tom McGlynn on Fri, 11 April 2008 05:55
		Re: Most Common IDL Programming Errors By: R.G. Stockwell on Fri, 11 April 2008 09:02
		Re: Most Common IDL Programming Errors By: David Fanning on Fri, 11 April 2008 05:58
		Re: Most Common IDL Programming Errors By: R.G. Stockwell on Thu, 10 April 2008 11:16
		Re: Most Common IDL Programming Errors By: Vince Hradil on Thu, 10 April 2008 07:31
		Re: Most Common IDL Programming Errors By: Vince Hradil on Thu, 10 April 2008 07:29
		Re: Most Common IDL Programming Errors By: mmiller3 on Thu, 10 April 2008 06:22
		Re: Most Common IDL Programming Errors By: Maarten[1] on Thu, 10 April 2008 04:35
		Re: Most Common IDL Programming Errors By: Erik[1] on Thu, 10 April 2008 02:29
		Re: Most Common IDL Programming Errors By: izimine on Thu, 10 April 2008 01:51
		Re: Most Common IDL Programming Errors By: Gaurav on Thu, 10 April 2008 00:01
		Re: Most Common IDL Programming Errors By: David Fanning on Wed, 09 April 2008 22:29
		Re: Most Common IDL Programming Errors By: Tom McGlynn on Wed, 09 April 2008 19:18
		Re: Most Common IDL Programming Errors By: Doug on Wed, 09 April 2008 14:33
		Re: Most Common IDL Programming Errors By: David Klassen on Wed, 09 April 2008 11:10
		Re: Most Common IDL Programming Errors By: rlayberry on Thu, 17 April 2008 08:52
		Re: Most Common IDL Programming Errors By: pgrigis on Wed, 16 April 2008 14:39
		Re: Most Common IDL Programming Errors By: R.Bauer on Sun, 13 April 2008 10:28
		Re: Most Common IDL Programming Errors By: David Fanning on Sat, 12 April 2008 11:59
		Re: Most Common IDL Programming Errors By: Vince Hradil on Fri, 11 April 2008 14:23
		Re: Most Common IDL Programming Errors By: Kenneth P. Bowman on Fri, 11 April 2008 11:37
		Re: Most Common IDL Programming Errors By: R.G. Stockwell on Fri, 11 April 2008 13:52
		Re: Most Common IDL Programming Errors By: Vince Hradil on Fri, 11 April 2008 10:54
		Re: Most Common IDL Programming Errors By: R.G. Stockwell on Fri, 11 April 2008 10:41
		Re: Most Common IDL Programming Errors By: Matt[2] on Fri, 11 April 2008 09:30
		Re: Most Common IDL Programming Errors By: David Fanning on Tue, 10 July 2012 05:50
		Re: Most Common IDL Programming Errors By: gerapagi on Tue, 10 July 2012 01:33

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