Could anyone help me how to generate the matrix in the following manner as described below

I want to generate a matrix of size

(1500x1)

in which first 100 rows should be having the value of 1, next 200 rows should be having the value of 1 and 2 arranged randomly, next 300 should be having the value of 1,2 and 3 arranged randomly, next 400 rows should be having the value of 1,2,3 and 4 arranged randomly and next 500 rows should be having the value of 1,2,3, 4 and 5 arranged randomly.

Could anyone please help me on this.

Answer 1

[Bruno Luong]

hi=repelem((1:5)',100*(1:5));
r=ceil(rand(size(hi)).*hi)

Answer 2

[Vignesh Murugavel]

This should do it.

m1 = ones([100,1]);

m2 = randi([1 2],200,1);

m3 = randi([1 3],300,1);

m4 = randi([1 4],400,1);

m5 = randi([1 5],500,1);

Ans = [m1 ; m2;m3;m4;m5];

[Rik]

@Vignesh Murugavel You should probably try to avoid numbered variables.

[jaah navi]

thanks

Answer 3

[Rik]

data=cell(5,1);
for n=1:numel(data)
    data{n}=randi([1 n],n*100,1);
end
data=cell2mat(data);
size(data)

ans = 1×2

1500 1

[jaah navi]

thanks