R: Convert a Date-Time Object to a Factor

cut.POSIXt {base}

R Documentation

Convert a Date-Time Object to a Factor

Method for cut applied to date-time objects.

## S3 method for class 'POSIXt'
cut(x, breaks, labels=NULL, start.on.monday=TRUE, ...)

`x`	an object inheriting from class `"POSIXt"`.
`breaks`	a vector of cut points or number giving the number of intervals which `x` is to be cut into or an interval specification, one of `"secs"`, `"mins"`, `"hours"`, `"days"`, `"weeks"`, `"months"` or `"years"`.
`labels`	labels for the levels of the resulting category. By default, labels are constructed using `"(a,b]"` interval notation. If `labels = FALSE`, simple integer codes are returned instead of a factor.
`start.on.monday`	logical. If `breaks = "weeks"`, should the week start on Mondays or Sundays?
`...`	arguments to be passed to or from other methods.

A factor is returned, unless labels = FALSE which returns the integer level codes.

## random dates in a 10-week period
cut(ISOdate(2001, 1, 1) + 70*86400*runif(100), "weeks")