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extract value in first row of nested arrays in a matrix

extract value in first row of nested arrays in a matrix

extract value in first row of nested arrays in a matrix

(OP)
I iterated the max() function for each column in a mxn matrix M. This generated an array of maximum values in each of n columns.

I then used the match(z,M) function with z as the maximum values to return position of value z in each column of matrix M. This worked! and generated another array of nested arrays. I now want to extract the first value from each of the nested arrays within the 'parent' array. How do I do this?

Thanks in advance for any help.
 

RE: extract value in first row of nested arrays in a matrix

To get a value from a non-nested array you would type (for example)

A := B[r,c

where r and c are row and column of array B.  For a nested array, it is similar but with one or more additional r and c.  The key also is selecting the entire expression before pressing "[".

A := B[r1,c1 <space> <space> [r2,c2

Pressing space twice puts the blue line under the entire right hand side expression.

Peter
 

RE: extract value in first row of nested arrays in a matrix

(OP)
Peter, thankyou, thankyou, thankyou!
My early thoughts were that mathcad was limited but it is me who has limits. I am very grateful for this tip. Cheers, Dave

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