Antonello,
R function JAMAlabels() in meta can be used for JAMA labels, i.e.,
Author (Year) superscript index. At the moment there is no corresponding
function for Lancet labels.
The following R code - adapted from JAMAlabels() - generates and uses
Lancet labels in the forest plot:
library(meta)
data(Fleiss1993bin)
refs <- 20 + 1:7
Fleiss1993bin$mylabs <- NA
##
for (i in seq_len(nrow(Fleiss1993bin)))
? Fleiss1993bin$mylabs[i] <-
??? with(Fleiss1993bin,
???????? as.expression(substitute(study~(year)^ref,
????????????????????????????????? list(study = study[i],
?????????????????????????????????????? year = year[i],
?????????????????????????????????????? ref = refs[i]))))
m <- metabin(d.asp, n.asp, d.plac, n.plac, data = Fleiss1993bin, sm = "OR")
forest(m, studlab = mylabs)
Best,
Guido