Nothing
# Filters out columns from data frame with low variance
rm_low_var <- function(df, threshold=0.0001) {
ind <- logical()
ncol <- length(df)
for (col in 1:ncol) {
if (var(df[[col]]) < threshold) {
ind[col] <- FALSE
} else {
ind[col] <- TRUE
}
}
df[ind]
}
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