Convert two-sided p-values to one-sided\loadmathjax
two2one(p, two = NULL, invert = NULL)
A vector of p-values
A logical vector defining which \mjseqnp-values are two-sided and to be converted
A logical vector defining which \mjseqnp-values are to be inverted
The \mjseqnp-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 \mjseqnp-values are two-sided
and the function converts them all to one-sided.
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.
A vector of one-sided \mjseqnp-values all in the correct direction
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
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