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random number generating problems

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alexaa1989
alexaa1989 2014-8-19
评论： alexaa1989 2014-8-21
hi everyone I have written an algorithm in which there is a part that has to produce random numbers like this:
a=randi(10,1,4)
b=randi(10,1,4)
c=randi(10,1,4)
I need it to produce different sets of numbers everytime I run the algorithm but it uses the same sets of numbers everytime
can anyone help?

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回答（1 个）

Guillaume
Guillaume 2014-8-19
In all likelyhood, you're seeding the random number generator with a fixed seed somewhere before calling randi.
Look for a rng(...) instruction and remove it, or insert a rng('shuffle') before calling randi. rng('shuffle') seeds the generator with the current time.
  2 个评论
Iain
Iain 2014-8-19
编辑：Iain 2014-8-19
If you aren't setting the random number generator with ANY seed, try ensuring that you provide one based on say, the time of day.
alexaa1989
alexaa1989 2014-8-21
it isn't working with rng and now it is producing not feasible solutions

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