Nothing
fmtcheck <-
function (x)
{
f1 <- (is.na(x)) * 1
f2 <- (nchar(x) == 0) * 1
g <- rep(0, length(x))
for (i in 0:9) {
ff <- (str_detect(x, as.character(i))) * 1
g <- g + ff
}
f4 <- (g == 0) * 1
f5 <- f1 + f2 + f4
}
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