What is the difference between rand and randi when using it in a 3D array

2018 8 25
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KALYAN ACHARJYA
KALYAN ACHARJYA 2018-8-25
编辑：KALYAN ACHARJYA 2018-8-25

6 个投票

Its similar as usual, rand for uniformly distributed random number including floatings numbers, whereas randi for integers.

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madhan ravi
madhan ravi 2018-8-25

4 个投票

Maybe try this:
array(randi([1 length(array)],1))

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madhan ravi
madhan ravi 2018-8-25
编辑：madhan ravi 2018-8-25
Doesn’t it work? You changed the question?
Shivam
Shivam 2018-8-25
When dealing with 3D arrays if im looking to extract one random point what is the reason behind using randi?
madhan ravi
madhan ravi 2018-8-25
randi produces random integer numbers and rand produces random floating numbers
madhan ravi
madhan ravi 2018-8-25
randi was used here because the index of an array should be an integer.
madhan ravi
madhan ravi 2018-8-25
Give a vote for my answer if you find it useful :)

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