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| unidinv | Examples |
Inverse of the discrete uniform cumulative distribution function.
Syntax
X = unidinv(P,N)
Description
unidinv(P,N) returns the smallest integer X such that the discrete uniform cdf evaluated at X is equal to or exceeds P. You can think of P as the probability of drawing a number as large as X out of a hat with the numbers 1 through N inside. The argument P must lie on the interval [0 1] and N must be a positive integer. Each element of X is a positive integer.Examples
x = unidinv(0.7,20)
x =
14
y = unidinv(0.7 + eps,20)
y =
15
A small change in the first parameter produces a large jump in output. The cdf and its inverse are both step functions. The example shows what happens at a step.