| two2one {metap} | R Documentation |
Convert two-sided p-values to one-sided
Description
Convert two-sided p-values to one-sided
Usage
two2one(p, two = NULL, invert = NULL)
Arguments
p |
A vector of p-values |
two |
A logical vector defining which \(p\)-values are two-sided and to be converted |
invert |
A logical vector defining which \(p\)-values are to be inverted |
Details
The \(p\)-values supplied to the other functions should be
one-sided and all in the same direction.
This convenience function will convert two-sided to
one-sided and invert as necessary.
By default it is assumed that all \(p\)-values are two-sided
and the function converts them all to one-sided.
Use invert to specify if some of the tests
resulted in outcomes in the other direction.
So for example a value of 0.05 will be converted to 0.025 unless
invert is TRUE in which case it is converted to 0.975.
Value
A vector of one-sided \(p\)-values all in the correct direction
Author(s)
Michael Dewey
Examples
data(dat.metap)
rosenthal <- dat.metap$rosenthal
twop <- with(rosenthal, (pt(t, df)))
two2one(twop, two = rep(FALSE, 5), invert = rep(TRUE, 5)) # restore to one-sided