a list that contains an item named threes, which is a
matrix, containing data as created with fivenum,
with colnames and rownames specified. See Details.
indent
a spacer put at the left of each line of the result
Value
A multi-line string, suitable for printing.
Details
This is a helper function for various summary functions.
The colnames are c("Min.", "Mean", "Max."), and the rownames are the
names of the variables being summarized.