matrix for simulating 20 coin tosses

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Levan Tavdgiridze 2020-12-6

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评论： Ameer Hamza 2020-12-6

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.

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采纳的回答

Ameer Hamza 2020-12-6

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https://ww2.mathworks.cn/matlabcentral/answers/682638-matrix-for-simulating-20-coin-tosses#answer_566803

编辑：Ameer Hamza 2020-12-6

在 MATLAB Online 中打开

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');