From: Eunju Lee on
Hello,

i am trying to solve norm-constrained minimum variance portfolio optimization using fmincon function, but haven't figured out how i put the norm constraint into function.
my objective function is:

min(w) w'*C*w
s.t sum(w)=1
sum of abs(w)<=c

so here is my question, how put the 'sum of abs(w)' into fmincon function line?
is there anyone who knows this, pls. hlep me