read.mtv: Import RevMan 4 data files (.mtv)

In meta: General Package for Meta-Analysis

Import RevMan 4 data files (.mtv)

Description

Reads a file created with RevMan 4 and creates a data frame from it.

Usage

read.mtv(file)

Arguments

file	The name of a file to read data values from.

Details

Reads a file created with RevMan 4 (Menu: "File" - "Export" - "Analysis data file...") and creates a data frame from it.

Value

A data frame containing the following components:

comp.no	Comparison number.
outcome.no	Outcome number.
group.no	Group number.
studlab	Study label.
year	Year of publication.
event.e	Number of events in experimental group.
n.e	Number of observations in experimental group.
event.c	Number of events in control group.
n.c	Number of observations in control group.
mean.e	Estimated mean in experimental group.
sd.e	Standard deviation in experimental group.
mean.c	Estimated mean in control group.
sd.c	Standard deviation in control group.
O.E	Observed minus expected (IPD analysis).
V	Variance of O.E (IPD analysis).
order	Ordering of studies.
conceal	Concealment of treatment allocation.
grplab	Group label.
type	Type of outcome. D = dichotomous, C = continuous, P = IPD.
outclab	Outcome label.
graph.exp	Graph label for experimental group.
graph.cont	Graph label for control group.
label.exp	Label for experimental group.
label.cont	Label for control group.
complab	Comparison label.

Author(s)

Guido Schwarzer [e-mail]

References

Review Manager (RevMan) [Computer program]. Version 4.2. Copenhagen: The Nordic Cochrane Centre, The Cochrane Collaboration, 2003

See Also

metabin, metacont, metagen

Examples

# Locate MTV-data file "FLEISS1993.MTV" in sub-directory of R package
# meta
#
filename <- system.file("extdata/FLEISS1993.MTV", package = "meta")
fleiss1933.cc <- read.mtv(filename)

# Same result as R Command example(Fleiss1993bin):
#
metabin(event.e, n.e, event.c, n.c,
  data = fleiss1933.cc, subset = type == "D",
  studlab = paste(studlab, year))

# Same result: example(Fleiss1993cont)
#
metacont(n.e, mean.e, sd.e, n.c, mean.c, sd.c,
  data = fleiss1933.cc, subset = type == "C",
  studlab = paste(studlab, year))

meta documentation built on Oct. 31, 2024, 5:07 p.m.