usa find with vector in matrix

[LucaLuca]

hi, i need to speed code but i see can't possible to use vector  to find
element in matrix

 code:

R is a matrix (x,2) 

Ntrades,NtTR are  matrix(n,m)
 
for gg=1:rows(R)
[roww(gg,1),coll(gg,2)]=find(Ntrades(1:R(gg,1))<=NTR(R(gg,1),R(gg,2)))(1);
endfor

it's possible to velocize it? thank for help



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