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Re: majority voting [message #65143 is a reply to message #65079]

Thu, 12 February 2009 12:47

Foldy Lajos
Messages: 268
Registered: October 2001

Senior Member

On Thu, 12 Feb 2009, JD Smith wrote:

> This was big news to me as well, since normally this does *not* work
> like this. Example:
>
> IDL> x=[0,0]
> IDL> x[[1,1]]+=1
> IDL> print,x
> 0 1
>
> This limitation is even called out in HISTOGRAM's help. Now let's try
> the new operators:
>
> IDL> x=[0,0]
> IDL> x[[1,1]]++
> IDL> print,x
> 0 2
>
> I'm not sure if this is intentionally or accidentally inconsistent,
> but it is indeed very useful.

It may be useful, but I think X=X+1, X+=1 and X++ should give the same
result for any X. Most programmers use these interchangeably.

regards,
lajos

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[Message index]

		majority voting By: Mort Canty on Wed, 11 February 2009 08:14
		Re: majority voting By: Allan Whiteford on Fri, 13 February 2009 01:31
		Re: majority voting By: David Fanning on Sat, 14 February 2009 08:44
		Re: majority voting By: JD Smith on Thu, 12 February 2009 14:45
		Re: majority voting By: Foldy Lajos on Thu, 12 February 2009 12:47
		Re: majority voting By: David Fanning on Thu, 12 February 2009 12:11
		Re: majority voting By: pgrigis on Thu, 12 February 2009 11:58
		Re: majority voting By: JD Smith on Thu, 12 February 2009 10:49
		Re: majority voting By: Mort Canty on Thu, 12 February 2009 07:45
		Re: majority voting By: JD Smith on Thu, 12 February 2009 07:08
		Re: majority voting By: David Fanning on Thu, 12 February 2009 05:43
		Re: majority voting By: Allan Whiteford on Thu, 12 February 2009 04:17
		Re: majority voting By: Mort Canty on Thu, 12 February 2009 01:15
		Re: majority voting By: JD Smith on Wed, 11 February 2009 15:20
		Re: majority voting By: ben.bighair on Wed, 11 February 2009 14:03
		Re: majority voting By: Allan Whiteford on Mon, 16 February 2009 04:11

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