WorksheetFunction.BetaDist Method

Excel Developer Reference

Returns the beta cumulative distribution function.

Syntax

expression.BetaDist(Arg1, Arg2, Arg3, Arg4, Arg5)

expression   A variable that represents a WorksheetFunction object.

Parameters

Name Required/Optional Data Type Description
Arg1 Required Double The value between A and B at which to evaluate the function.
Arg2 Required Double A parameter of the distribution.
Arg3 Required Double A parameter of the distribution.
Arg4 Optional Variant An optional lower bound to the interval of x.
Arg5 Optional Variant An optional upper bound to the interval of x.

Return Value
Double

Remarks

The beta distribution is commonly used to study variation in the percentage of something across samples, such as the fraction of the day people spend watching television.

  • If any argument is nonnumeric, BetaDist returns the #VALUE! error value.
  • If alpha ≤ 0 or beta ≤ 0, BetaDist generates an error value.
  • If x < A, x > B, or A = B, BetaDist generates an error value.
  • If you omit values for A and B, BetaDist uses the standard cumulative beta distribution, so that A = 0 and B = 1.

See Also