digits to the right of the decimal point to return in the
percentage estimate.
na_rm
if true, omit NA values
show_n
defaults to "ifNA". Other options are "always" or "never".
denote_sd
a character string set to either "pm" or "paren" for reporting 'mean
\(\pm\) sd' or 'mean (sd)'
markup
character string with value "latex" or "markdown"
...
pass through
Details
Given a numeric vector, mean_sd will return a character string with
the mean and standard deviation. Formatting of the output will be extended in
future versions.