timeSeries (version 280.75)

isUnivariate: Checks if a Time Series is Univariate

Description

Checks if a time series o bject or any other rectangular object is univariate or multivariate.

Usage

isUnivariate(x)
isMultivariate(x)

Arguments

x

an object of class timeSeries or any other rectangular object.

Value

• isUnivariate isMultivariate return a logical depending if the test is true or not.

Details

A rectangular object x is considered to be univariate if the function NCOL(x) returns one, and is considered to be multivariate if NCOL(x) returns a value bigger than one.

Examples

## data -  
   # Microsoft Data:
   setRmetricsOptions(myFinCenter = "GMT")
   MSFT = as.timeSeries(data(msft.dat))
   Open = MSFT[, "Open"]
   
   isUnivariate(MSFT)
   isUnivariate(Open)
   
   isMultivariate(MSFT)
   isMultivariate(Open)