Beta difference Cumulative Probability Function

Calculates the Cumulative Probability Function of the Beta difference for a given probability.

Usage

pbetadiff(q, parY, parX, rel.tol = .Machine$double.eps^0.1)

Arguments

q

(number):
vector of quantiles

parY

(numeric):
two parameters of Y's Beta distribution (Treatment)

parX

(numeric):
two parameters of X's Beta distribution (Control)

rel.tol

(number):
used in stats::integrate()

Value

The probability distribution value

Examples

# The following examples use these parameters:
parX <- c(1, 52)
parY <- c(5.5, 20.5)

# Calculate probability based on quantile `Q(Z) =< 0.122838`
pbetadiff(
  q = 0.122838,
  parY = parY,
  parX = parX
)
#> [1] 0.2000019

# Calculate probability based on quantile `Q(Z) =< 0.5`
pbetadiff(
  q = 0.5,
  parY = parY,
  parX = parX
)
#> [1] 0.9993969