MATLAB: Assign random number in column if negative/positive

columnrandom number generatortable

Hello everyone,
I have a simple Matlab table with the last column having positive and negative numbers. If the values are negative I want to create an additional table and assign random numbers from 4 to 14 and the rest with "0". If the values are positive I want to assign random numbers from 4 to 14 and the rest "0 " in an additional column. see the attached picture

Best Answer

val = [1 5 -3 4 8 -6]' ;
C1 = zeros(size(val)) ;
idx = val<0 ;
C1(idx) = randsample(4:14,nnz(idx)) ;
T = table(val,C1)
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