is.tseries {pastecs}

Is this object a time series?

Description

This is equivalent to is.rts() in Splus and to is.ts() in R. is.tseries() recognizes both 'rts' and 'ts' objects whatever the environment (Splus or R)

Usage

is.tseries(x)

Arguments

x

an object

Value

a boolean value

Author(s)

Philippe Grosjean ([e-mail]), Frédéric Ibanez ([e-mail])

See Also

tseries

Examples

tser <- ts(sin((1:100)/6*pi)+rnorm(100, sd=0.5), start=c(1998, 4), frequency=12)
is.tseries(tser)      # TRUE
not.a.ts <- c(1,2,3)
is.tseries(not.a.ts)  # FALSE