is.CI_within: Evaluate whether a confidence interval is within a tolerable...

In Spower: Power Analyses using Monte Carlo Simulations

Evaluate whether a confidence interval is within a tolerable interval

Description

Return TRUE if an estimated confidence interval falls within a tolerable interval range. Typically used for equivalence, superiority, or non-inferiority testing.

Usage

is.CI_within(CI, interval)

Arguments

CI	estimated confidence interval (length 2)
interval	tolerable interval range (length 2)

Value

logical

Author(s)

Phil Chalmers [e-mail]

See Also

is.outside_CI, Spower

Examples

CI <- c(.2, .4)
LU <- c(.1, .3)
is.CI_within(CI, LU)        # not within tolerable interval
is.CI_within(CI, c(0, .5))  # is within wider interval

# complement indicates if CI is outside interval
!is.CI_within(CI, LU)

#####
# for superiority test
is.CI_within(CI, c(.1, Inf))  # CI is within tolerable interval

# for inferiority test
is.CI_within(CI, c(-Inf, .3))  # CI is not within tolerable interval

Spower documentation built on June 8, 2025, 11:18 a.m.