Summary Information for Irregular Time-Series Objects

Description

Summary information for objects of class "its".

Details

Summary returns the same statistics as summary for a matrix, plus the number of NA and non-NA data points for each series, and the standard deviation.

Start and end return the dates corresponding to the first and last rows, respectively.

Value

For start, end, a formatted text representation of the first and last times For summary, a table of summary statistics for each series

Usage

start(x,format=its.format(),...) end(x,format=its.format(),...) summary(object)

Arguments

x, object

an object of class "its"

format

a formatting string, see format.POSIXct

...

further arguments passed to or from other methods: for start and end, passed to format.POSIXct.

Author(s)

Giles Heywood

See Also

ts, POSIXct, itsFile, itsLags itsJoin itsTimes itsSubset itsFin itsDisp itsInfo itsCumdif itsArith itsInterp

Examples

b <- newIts(1:30,ncol=3)
start(b,format="%y-%m-%d")
end(b)
summary(b)