Efficiency question for list modification

Alex Tweedly alex at tweedly.net
Sat Mar 12 18:13:19 EST 2011


You're right. Sorry - I was misled by the docs, which describe the order 
of the combine following the description of the 'first' form of the 
combine command, and then go on to describe the second form, including 
the fact that the keys of the array must be all numeric.  I put 2 + 2 
together and got a much too large answer :-(

btw - I did also notice that the docs for 'combine' mention that 
'combine by column' etc. was introduced in 2.8.1

-- Alex.

On 12/03/2011 09:17, FlexibleLearning wrote:
> Unfortunately 'combine' does not retain the original order. It should, but
> it doesn't. The sort order for array elements seems to be alpha and not
> numeric, even though the keys are numeric. This means that the output list
> is not in the same order as the input list.
>
> Hugh Senior
> FLCo





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