>>>>> "PatB" == Patrick Burns <pbu...@pburns.seanet.com>
>>>>> on Sun, 04 Jul 2010 09:43:44 +0100 writes:
PatB> Is there a reason that 'which.min' and
PatB> 'which.max' don't have an 'arr.ind'
PatB> argument?
well, help(which.min) tells you that they really were aimed at
doing their job *fast* for vectors.
Of course you are right and a generalization to arrays might be
convenient at times.
PatB> The context in which I wanted that was
PatB> a grid search optimization, which seems
PatB> like it would be reasonably common to me.
well, as the author of these two functions, I can only say
"patches are welcome!"
and I think should be pretty simple, right ?
You just have to do very simple remapping of the 1d index 'i' back
to the array index, i.e., the same operation
you need to transform seconds into days:hours:minutes:seconds
{{and yes, we old-timers may recall that APL had an operator (I
think "T-bar") to do that ...}
Martin Maechler, ETH Zurich
PatB> --
PatB> Patrick Burns
PatB> pbu...@pburns.seanet.com
PatB> http://www.burns-stat.com
PatB> (home of 'Some hints for the R beginner'
PatB> and 'The R Inferno')
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