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How To Generate Non Repeating floating Random Numbers from 1 to 10

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Vikas Rahar
Vikas Rahar 2019-11-26
评论： Star Strider 2019-11-26
Hi,
Does anybody know how to generate a series of 100 non-repeating random floating numbers between 1 and 10?
Thanks

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采纳的回答

Star Strider
Star Strider 2019-11-26
One option:
v = rand(1, 100)*9+1;
[L, H] = bounds(v) % Check
producing (in this run):
L =
1.0846
H =
9.9740
  6 个评论
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Walter Roberson
Walter Roberson 2019-11-26
With 2^53 possible rand() outputs, an estimation using The Birthday Paradox logic suggests that the probability of a duplicate rises to 1/2 at about 10^8
Star Strider
Star Strider 2019-11-26
Noted.
I’d not thought to test this with the ‘Birthday Party’ problem.

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更多回答（1 个）

Andrei Bobrov
Andrei Bobrov 2019-11-26
z = cumsum(rand(100,1));
mn = min(z);
Z = 9/(max(z) - mn)*(z - mn) + 1;
out = Z(randperm(100));

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