argmin function

I am performing Sparse Representation-based Classification (SRC)algorithm ,In that i have completed 2 stepls ,till L2 NORMALISATION .now i want to perform L1 normalisation ,i have performed norm(A,1) is it correct ?,for this i want to find argminx||x||,lease tell hoe to perform

Answer 1

[Andrei Bobrov]

norm(A(:),-inf)

OR:

min(A(:))

[kash]

Thanks andrei can u help me in finding the residuals please

in SRC ALGORITHM

http://www.sendspace.com/file/vj5fhi

page num 5 ,step 4 and 5 ,please help