how to get all max values of one vector

i have for example the following vactor: X = [ 1 2 3 4 5 7 7 3 5 3 2 7]

my aim is to get all the maximum values, so in the vector X the maximum value is 7 and i can find it as Value_max = max(X);

however this function consider only the first 7 and i need a function that give to me all the 7 so the result that i need is Y = [7 7 7]

Answer 1

[David Hill]

m=X(ismember(X,max(X)));

[Francesco Grechi]

it works thank you

Answer 2

[Image Analyst]

Try this

indexes = find(X == max(X));
result = X(indexes)

[Francesco Grechi]

it works thank you