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Power Platform中心だけど、ノーコード/ローコード系を書いてます。

New Power Apps function - RandBetween

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The Rand() function returns random number between 0-1.

To get random number with arbitrary min. and max. value, you can use following expression using Rand():

min + (max-min)*Rand()

Alternatively, using Shuffle(...) and Sequence(....), it returns also random number (integer):

First(Shuffle(Sequence(max-min,min))).Value

The New function available in Power Apps today, RandBetween(min, max) provides random integer between min. and max.

This function works same as rand(...) function in Power Automate.

ex: RandBetween(3,10) --> Either value in  [3,4,5,6,7,8,9,10]

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Example1

To pick up record in random sequence, RandBetween(1, CountRows(..)) works as index of random record.

Last(FirstN( datasource, RandBetween(1,CountRows(datasource))))

This is equivalent as

First(Shuffle(datasource))

Example2

Since RandBetween only provides random integer, if maker needs random value with specific precision, e.g. random number between -3.21 and 2.34, it will be expressed as

RandBetween(min*Power(10,precision),max*Power(10,precision))/Power(10,precision)

That's all!