prod {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.

This is a generic function: methods can be defined for it directly or via the `Summary` group generic.

### References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.

### See Also

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

### Examples

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

[Package base version 2.1.1 Index]