tis (version 1.39)

start.tis: Starting and ending time indexes

Description

Return the start or end time index for a tis object.

Usage

# S3 method for tis
start(x, …)
# S3 method for tis
end(x, …)
start(x) <- value

Arguments

x

a tis object

value

desired start attribute

…

ignored

Value

start.tis returns the start attribute of x, while end.tis returns start(x) + nobs(x) - 1. start(x) <- value returns the series x shifted such that it's starting time is value.

See Also

start,end

Examples

# NOT RUN {
x <- tis(numeric(8), start = c(2001, 1), freq = 4)
start(x)           ## --> ti object representing 2001Q1
start(as.ts(x))    ## --> c(2001, 1)
# }