function that can do random drawing

2012 1 30
1 个回答
2 次查看（30 天）

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I have the following probabilities: 0.8 for category 1 and 0.2 for category 0. I need to randomly draw a category (0/1) such that the it satisfies the probability distribution. Is there such a thing in matlab? Thanks

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回答（1 个）

Wayne King
Wayne King 2012-1-30

0 个投票

You can just use rand.
for nn = 1:1000
drawnum = rand(1);
if( drawnum <= 0.2)
category(nn) = 1;
else
category(nn) = 0;
end
end

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jenka
jenka
2012-1-30

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