iscaminvnorm: Inverse Normal Calculation

In ISCAM: Companion to the Book "Investigating Statistical Concepts, Applications, and Methods"

Inverse Normal Calculation

Description

Inverse Normal Calculation

Usage

iscaminvnorm(prob1, mean = 0, sd = 1, Sd = sd, direction, verbose = TRUE)

Arguments

prob1	probability to find normal quantile of.
mean	mean of normal distribution.
sd	standard deviation of normal distribution.
Sd	deprecated–available for backwards compatibility.
direction	direction for probability calculation: "above", "below", "outside", "between".
verbose	Logical, defaults to TRUE. Set to FALSE to suppress messages

Value

a plot of the normal distribution with the quantile of the specified probability highlighted.

Examples

iscaminvnorm(0.05, direction = "below")
iscaminvnorm(0.90, mean = 100, sd = 15, direction = "above")
iscaminvnorm(0.10, direction = "outside")
iscaminvnorm(0.95, direction = "between")

ISCAM documentation built on Feb. 12, 2026, 5:07 p.m.