log.na {vsn}R Documentation

Wrapper around the log() function that avoids warnings when negative values are presented

Description

Wrapper around the log() function that avoids warnings when negative values are presented

Usage

log.na(x, ...)

Arguments

x A numeric or complex vector.
... Further arguments that get passed on to log.

Value

A vector of the same length as `x' containing the transformed values. For x<=0, NA is returned without warning.

Author(s)

Wolfgang Huber http://www.dkfz.de/abt0840/whuber

See Also

log

Examples

   log.na(-3:3)

[Package vsn version 1.4.13 Index]