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Combine p values by the mean p method
meanp(p)
# S3 method for meanp
print(x, ...)An object of class ‘meanp’ and ‘metap’,
a list with entries
Value of z
Associated p-value
The input vector with illegal values removed
A vector of significance values
An object of class ‘meanp’
Other arguments to be passed through
Michael Dewey
Defined as z = (0.5 - p) 12kz = (0.5 - mean(p)) * sqrt(12k) which is a standard normal and due to edgington72b;textualmetap becker94metaprosenthal78metap
The values of p_i should be such that 0 p_i 1 and a warning is given if that is not true. A warning is given if, possibly as a result of removing illegal values, fewer than four values remain and the return values are set to NA.
The plot method for class ‘metap’ calls plotp on the valid
See also plotp
data(dat.metap)
rosenthal <- dat.metap$rosenthal
meanp(rosenthal$p) # 2.17, p = 0.015 one tailed
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