Nothing
getTrw <- function(x) {
out <- x[[1]]$trw[, 1, drop = FALSE]
for (i in 2:length(x)) {
if (nrow(x[[i]]$trw) > 2) {
out <- mergeRwl(x = out, y = x[[i]]$trw[, 1, drop = FALSE])
}
}
out
}
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