sub-.longarm: Extract parts of longarm object

In guido-s/meta: General Package for Meta-Analysis

Extract parts of longarm object

Description

Auxiliary function to extract parts of longarm object.

Usage

## S3 method for class 'longarm'
x[...]

Arguments

x	An object of class longarm.
...	Additional arguments (passed on to [.data.frame).

Author(s)

Guido Schwarzer [e-mail]

See Also

longarm, subset.longarm, dat.franchini2012

Examples

# Transform data from wide arm-based format to contrast-based format
pw1 <- pairwise(list(Treatment1, Treatment2, Treatment3),
  n = list(n1, n2, n3),
  mean = list(y1, y2, y3), sd = list(sd1, sd2, sd3),
  data = dat.franchini2012, studlab = Study)

# Transform data from contrast-based to long arm-based format
# and only keep the main variables
la1 <- longarm(pw1, append = FALSE)
head(la1)

la1[la1$studlab == "Lieberman 1998", ]

guido-s/meta documentation built on Feb. 20, 2025, 9:08 a.m.