# RANDARRAY

The RANDARRAY function generates an array of random numbers between 0 and 1. It's handy for creating datasets for simulation, testing, or simply to randomly populate cells in Excel.

## Syntax ðŸ”—

=RANDARRAY(`rows`, `columns`, `[min]`, `[max]`, `[integer]`)

When you need a quick way to populate a range of cells with random numbers in Excel, look no further than the RANDARRAY function. This versatile function allows you to create arrays of random numbers with desired dimensions and characteristics, serving various purposes from data analysis to stochastic simulations and beyond. Harnessing the power of RANDARRAY, you can efficiently generate datasets for testing, modeling, or any scenario that calls for random values within a specified range and format. By tailoring the function's optional parameters, you can customize the range and type of random numbers produced, enabling flexibility and precision in your Excel work.

## Examples ðŸ”—

To generate a 3x3 array of random numbers between 0 and 1, use the formula: =RANDARRAY(3, 3)

For a 2x4 array of random integers between 10 and 100, use: =RANDARRAY(2, 4, 10, 100, TRUE)

## Notes ðŸ”—

The RANDARRAY function recalculates whenever the worksheet is recalculated or changed. If you need random numbers that don't change, consider using copy-paste values or a similar method to freeze the values.

## Questions ðŸ”—

How does the RANDARRAY function generate random numbers?

The RANDARRAY function uses the Mersenne Twister algorithm to produce pseudorandom numbers within the specified range. Each invocation of RANDARRAY generates a fresh set of random numbers based on the current state of the random number generator.

Can I specify both min and max values for the generated random numbers?

Yes, you can specify both the minimum and maximum values for the random numbers using the `min` and `max` arguments. This allows you to control the range within which the random numbers will be generated.

How can I generate random integers with the RANDARRAY function?

To generate random integers instead of decimal numbers, you can set the `integer` argument to TRUE. This instructs the function to produce whole numbers within the specified range, useful for scenarios that require integer values.