metafor (version 3.8-1)

methods.escalc: Methods for 'escalc' Objects

Description

Methods for objects of class "escalc".

Usage

# S3 method for escalc
[(x, i, ...)
# S3 method for escalc
cbind(..., deparse.level=1)
# S3 method for escalc
rbind(..., deparse.level=1)

Arguments

x

an object of class "escalc".

...

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

Examples

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

### select rows where variable 'alloc' is equal to 'random'
dat[dat$alloc == "random",]

### variables specified are automatically searched for within the object itself
dat[alloc == "random",]

### note: this behavior is specific to 'escalc' objects; this doesn't work for regular data frames