R Graphical Manual

Last data update: 2014.03.03

R: Difftime with units Months and Years

as.difftime

R Documentation

Difftime with units Months and Years

Expand difftime units to include months and years .

as.difftime(tim, format = "%X", units = "auto")

`tim`
`format`
`units`	Anything allowed by `base:::as.difftime`. In addition, can be "months" or "years" in which case `tim` must be numeric.

Primarily used to facilitate adding months and years to mondates. See base:::as.difftime.

See base:::as.difftime.

Dan Murphy.

x <- mondate(0:12)
y <- as.difftime(1, , "months")
x + y
x - y