All combinations of the sum of 2 columns

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Anthony Coppola
Anthony Coppola 2022-10-2
评论： Walter Roberson 2022-10-2
I am looking to combine each of these columns to find the greatest x. I need to check every combination of the two columns that are being subtracted from eachother. Im only ever going to be comparing 2 columns together at once. After x has a new matrix I'm going to pull max to continue. This is a simplified version of my code, I have many columns that I am pulling from excel to compare.
a = [29;31;34]
b = [31;31;31]
x = (b-a) % all possibilities for b-a

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Torsten
Torsten 2022-10-2
Ran in:
a = [29;31;34].' ;
b = [31;31;31] ;
x = b-a
x = 3×3
2 0 -3 2 0 -3 2 0 -3
xmax = max(x(:))
xmax = 2
  1 个评论
Walter Roberson
Walter Roberson 2022-10-2
The max will be max(b)-min(a) or max(a)-min(b). If you use bounds() you can calculate these efficiently.

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