metafor (version 4.6-0)

coef.permutest.rma.uni: Extract the Model Coefficient Table from 'permutest.rma.uni' Objects

Description

Function to extract the estimated model coefficients, corresponding standard errors, test statistics, p-values (based on the permutation tests), and confidence interval bounds from objects of class "permutest.rma.uni".

Usage

# S3 method for permutest.rma.uni
coef(object, ...)

Value

A data frame with the following elements:

estimate

estimated model coefficient(s).

se

corresponding standard error(s).

zval

corresponding test statistic(s).

pval

p-value(s) based on the permutation test(s).

ci.lb

lower bound of the (permutation-based) confidence interval(s).

ci.ub

upper bound of the (permutation-based) confidence interval(s).

When the model was fitted with test="t", test="knha", test="hksj", or test="adhoc", then zval is called tval in the data frame that is returned by the function.

Arguments

object

an object of class "permutest.rma.uni".

...

other arguments.

Author

Wolfgang Viechtbauer https://www.metafor-project.org

References

Viechtbauer, W. (2010). Conducting meta-analyses in R with the metafor package. Journal of Statistical Software, 36(3), 1--48. https://doi.org/10.18637/jss.v036.i03

See Also

permutest for the function to conduct permutation tests and rma.uni for the function to fit models for which permutation tests can be conducted.

Examples

### calculate log risk ratios and corresponding sampling variances
dat <- escalc(measure="RR", ai=tpos, bi=tneg, ci=cpos, di=cneg, data=dat.bcg)

### fit mixed-effects model with absolute latitude and publication year as moderators
res <- rma(yi, vi, mods = ~ ablat + year, data=dat)

### carry out permutation test
if (FALSE) {
set.seed(1234) # for reproducibility
sav <- permutest(res)
coef(sav)
}