How to insert value in the first of vector?

CumProb

ans =

0.1579 0.2105 0.3158 0.4211 0.5263 0.7895 1.0000

I want to insert the value 0 at the begining of the vector CumProb

the result=

0 0.1579 0.2105 0.3158 0.4211 0.5263 0.7895 1.0000

Answer 1

[Star Strider]

Probably the easiest way is to do exactly that:

CumProb = [0.1579    0.2105    0.3158    0.4211    0.5263    0.7895    1.0000];
CumProb = [0 CumProb];

Another option:

newCumProb = zeros(1,size(CumProb,2)+1);
newCumProb(2:end) = CumProb;