MATLAB: What is the MATLAB function to evaluate ncr value when n is real

ncr value

what is the MATLAB function to evaluate ncr value when n is real

If n and r are both non-negative integers, and n >= r, use:

nCr = nchoosek(n,r)

If n and/or r can be negative, you can use the more general form:

nCr =  gamma(n+1)/(gamma(r+1)*gamma((n-r)+1))

If either n or r is an integer <= -1, then the nCr is not defined.

My suggestion: first find the unique rows of Fset, and then get the column indices for each row

FSet = randi(2,10,3) -1 % example
UFS = unique(FSet,'rows','stable')
UnqFS = arrayfun(@(r) find(UFS(r,:)), 1:size(UFS,1), 'un',0)
celldisp(UnqFS)

a = dec2bin(0:511,9) - '0';
n = sum(a,2);
out = reshape(a(n <= 6 & n >= 1,:).',3,3,[]);

ADD

a = dec2bin(0:511,9) - '0';
n = sum(a,2);
out = reshape(a(n <= 6 & n >= 1 & all(a(:,[1:4:9])==0,2),:).',3,3,[]);