its (version 1.0.3)

itsCumdif: Cumulation, Differencing for Irregular Time-Series Objects

Description

Cumulation, differencing for objects of class "its".

Value

• An object of class "its"

Usage

cumsum(x) diff(x,lag=1)

Details

cumsum and diff perform the cumulative sum and difference of each column in turn. In diff, the first lag rows are discarded.

See Also

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

Examples

b <- newIts(1:60,ncol=3)
cumsum(b)
diff(b,lag=2)