code using if but didn't work?? any help

i want to make a subcod in a simulation as follows 1- choose the lowest numberin

a=[9 5 6 1 -5 0 2] 2- replace this value with 1 and other numbers with zeros to be 

newa=[0 0 0 0 1 0 0]
my sub code is 
a=[9 5 6 1 -5 0 2]
newa=size(a)
j=min(a)
for i=1:7
    if a(1,i)==j; then newa(1,i)==1;
    else
        newa(1,i)==0;
    end
end
But it didnt work ANY HEELP

Answer 1

[Kelly Kearney]

You have a typo in your then statement... should be

newa(1,i) = 1;

not

 newa(1,i) == 1;

But you can replace the entire code with

 a = [9 5 6 1 -5 0 2];
 newa = a == min(a);

[Star Strider]

True, but we have:

newa=[0 0 0 0 1 0 0]

then:

newa=size(a)