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Re: Dropped dimensions? [message #80739 is a reply to message #14805]

Sun, 01 July 2012 00:43

lecacheux.alain
Messages: 325
Registered: January 2008

Senior Member

On 1 juil, 07:51, Craig Markwardt <craig.markwa...@gmail.com> wrote:
> On Thursday, June 28, 2012 3:07:39 PM UTC-5, wlandsman wrote:
>> On Thursday, June 28, 2012 3:45:45 PM UTC-4, wlandsman wrote:
>>> On Sunday, March 28, 1999 3:00:00 AM UTC-5, Craig Markwardt wrote:
>
>>> How do you end up with a scalar? At least since IDL V7.1, I find,
>
>> To answer my own question, the subsequent processing might convert a 1 element array to a scalar. I do try to have my own programs avoid such conversions, but it can be hard to maintain consistency. --Wayne
>
> I try too, but sometimes it just works out that a scalar pops out.
>
> Wow, this thread started 13 years ago!
>
> Craig
>
>

I do not feel that the implicit reforming of arrays dimensions is a
too strong problem (even if discussed for 13 years!). First, because
only the last dimension of an array can be concerned (with possible
recursion); second, because the problem arises only in the case of a
statement explicitly asking for dimension (like total, max, mean...).
Then if you like to be generic, you must use, as Craig's said, some
construct like total(reform([array], mydims), dim). In all other
cases, this IDL rule is an advantage rather than an inconvenience.
alain.

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[Message index]

		Dropped dimensions? By: Craig Markwardt on Sun, 28 March 1999 00:00
		Re: Dropped dimensions? By: wlandsman on Thu, 28 June 2012 13:07
		Re: Dropped dimensions? By: Craig Markwardt on Sat, 30 June 2012 22:51
		Re: Dropped dimensions? By: wlandsman on Thu, 28 June 2012 12:45
		Re: Dropped dimensions? By: MarioIncandenza on Thu, 28 June 2012 12:16
		Re: Dropped dimensions? By: lecacheux.alain on Sun, 01 July 2012 00:43

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