I am trying to create a random 10x10 matrix that each row is equal to a certain value, what would be the best way of carrying this out?

How to set the sum of each row in a matrix to a certain value when creating a random matrix

Answer 1

[Walter Roberson]

Use https://www.mathworks.com/matlabcentral/fileexchange/9700-random-vectors-with-fixed-sum

Answer 2

[Roger Stafford]

As Walter has stated, you can use the routine I contributed to the File exchange called “randfixedsum” for each of your ten rows. However, that function does require that you specify a lower and an upper limit for each of the ten elements for any given row. That is something you would need to decide.

[callum connacher]

would this work even if each row is to equal a different value?

[Roger Stafford]

Yes it would work, but you would have to call on randfixedsum ten different times in a for-loop using the different desired sums (and possibly different allowed ranges.)