How can I create a vector

I want to create a vector b from the vector a, such as:

a = [2 4 3]

b = [1/2 1/2 1/4 1/4 1/4 1/4 1/3 1/3 1/3]

(note that there are as many fractions in b, as the sum of the vector a. Also, the number of different fractions correspond with the individual values of a)

Is there any easy way to generalize this example?

Thanks

[Javier Imaz Higuera]

found a way:

b=[];

for i = 1:length(a)

b=[b,a(i).*ones(a(i),1)']

end

b=b.^(-1);

[Matt J]

You should be getting Code Analyzer messages discouraging you from growing b iteratively in the loop.

Answer 1

[Matt J]

a=[2,4,3];

b=1./repelem(a,a)

b = 1×9

0.5000 0.5000 0.2500 0.2500 0.2500 0.2500 0.3333 0.3333 0.3333