Summary.Date
Summary Group Method for Date/Time Objects

### Description

A group method for calculating mathematical summaries for Date/Time objects.

### Usage

    ## min, max, range
    ## S3 method for class 'Date':
    Summary(..., na.rm)
    ## S3 method for class 'POSIXct':
    Summary(..., na.rm)
    ## S3 method for class 'POSIXlt':
    Summary(..., na.rm)
    ## min, max, range, sum
    ## S3 method for class 'difftime':
    Summary(..., na.rm)

### Arguments

na.rm | a logical flag. If TRUE, removes missing values before computation. The default is FALSE.
... | additional arguments.

Value
returns the results of the generic functions.
See Also
Summary, Date, POSIXt, difftime
Examples

    ## Date
    (d <- Sys.Date() + 1:10)
    range(d)
    ## POSIXct
    (ct <- Sys.time() + 1:10)
    range(ct)
    ## POSIXlt
    (lt <- as.POSIXlt(Sys.time() + 1:10))
    range(lt)
    ## difftime
    (dt <- Sys.time() - as.POSIXct(Sys.Date()) + 1:10)
    sum(dt)

Package base version 6.1.5-18
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