matrix for simulating 20 coin tosses

Hello,

I am trying to create 20X1000 matrix which simulates 20 coin tosses 1000 times. So matrix is binary. then I would like create 20 number vector for counting ones in matrix. for example if number of ones in first row is 15, fifteenth number in vector will be increased by one. and I would like to show this vector as a graph so it shows how many rows had how many ones in it.

Answer 1

[Ameer Hamza]

Try this

M = randi([0 1], 20, 1000);
M_sum = sum(M);

freq = accumarray(M_sum(:), 1, [20 1]);
bar(1:20, freq)
xlabel('Number of ones');
xlabel('Number of rows');

[Levan Tavdgiridze]

This worked. Thank you

[Ameer Hamza]

I am glad to be of help!