the number of digits after the decimal point for numeric values.
The default is 2.
r.names
a logical value that indicates whether to print the row names,
where TRUE = print the row names and FALSE = do not print the row names.
The default is TRUE.
c.names
a logical value that indicates whether to print the column
names, where TRUE = print the column names and FALSE = do not print the
column names. The default is TRUE.
r.cex
character expansion parameter for the row labels. The default is
1.
c.cex
character expansion parameter for the column labels. The default
is 1.
miss
the missing value code expressed as a character string. The
default is "NA".