max (matrix, DIM) does not behave as advertised

[Francesco Potortì]

>Francesco Potortì wrote:
>> The help string says:
>> 
>>  -- Mapping Function:  max (X, Y, DIM)
>> 
>>      For a matrix
>>      argument, return the maximum value from each column, as a row
>>      vector, or over the dimension DIM if defined.
>> 
>> but:
>> 
>> octave3.1> max(ones(2),2)
>> ans =
>> 
>>    2   2
>>    2   2
>
>That is consistent

No, the help string distinguishes between the cases of one matrix and
two matrices argument.  From what I read in it, the example I proposed
should produce a column vector of ones.  Here is the complete help
string:

     For a vector argument, return the maximum value.  For a matrix
     argument, return the maximum value from each column, as a row
     vector, or over the dimension DIM if defined. For two matrices (or
     a matrix and scalar), return the pair-wise maximum.


>		   .. I believe you mean
>
>max(ones(2,2),[],2)

Yes, that one works, thanks.  But as I said above, either the help
string should be clarified or the behaviour changed.

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