R: loop over all variables and display a frequency table for each-CodePudding

I have a data frame and I need to display a frequency table for each variable. The following code does not work (no error message but no tables printed) and I can't find the solution despite extensive searching. I would be grateful for pointers.

varlist <- names(df)
for (var in varlist) {
   mytable <- table(paste("df$", var, sep = ""))
   mytable
}

I am not working on my machine so I would prefer to stick to base R if possible, to avoid installing packages.

CodePudding user response：

As long as categorical variables are of factor data type, summary(df) will give you frequency tables for each of them.

Alternatively, you can use lapply to loop table over the columns: lapply(df[names(df)], table))