prod                  package:base                  R Documentation

Product of Vector Elements

Description:

     `prod' returns the product of all the values present in its
     arguments.

Usage:

     prod(..., na.rm = FALSE)

Arguments:

     ...: numeric vectors.

   na.rm: logical. Should missing values be removed?

Details:

     If `na.rm' is `FALSE' an `NA' value in any of the arguments will
     cause a value of `NA' to be returned, otherwise `NA' values are
     ignored.

See Also:

     `sum', `cumprod', `cumsum'.

Examples:

     print(prod(1:7)) == print(gamma(8))

