Learn R Programming
metafor (version 1.9-8)

model.matrix.rma: Model Matrix for 'rma' Objects

Description

The function extracts the model matrix for objects of class "rma".

Usage

"model.matrix"(object, ...)

Arguments

object
an object of class "rma".
...
other arguments.

Value

The model matrix.

References

Viechtbauer, W. (2010). Conducting meta-analyses in R with the metafor package. Journal of Statistical Software, 36(3), 1--48. http://www.jstatsoft.org/v36/i03/.

See Also

fitted.rma

Examples

Run this code
### load BCG vaccine data
data(dat.bcg)

### meta-analysis of the log relative risks using a mixed-effects meta-regression model
### with multiple moderators (absolute latitude, publication year, and allocation method)
res <- rma(measure="RR", ai=tpos, bi=tneg, ci=cpos, di=cneg,
           mods = ~ ablat + year + alloc, data=dat.bcg)
model.matrix(res)

Run the code above in your browser using DataLab