is.tseries {pastecs} | R Documentation |
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)
is.tseries(x)
x |
an object |
a boolean value
Philippe Grosjean (phgrosjean@sciviews.org), Frédéric Ibanez (ibanez@obs-vlfr.fr)
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