erer (version 1.3)

head: Return the first or last part of time series data

Description

Return the first of last parts of an object of time series data.

Usage

## S3 method for class 'ts':
head(x, n = 5, \dots)
  ## S3 method for class 'ts':
tail(x, n = 5, \dots)

Arguments

x

input time seires data.

n

a single integer for the length or row of returned data

...

additional arguments to be passed.

Value

• An object like x but generally smaller.

Details

The data can be an univariate or multivariate time series data.

Examples

h1 <- ts(data=cbind(1:24), start=c(2001, 1), frequency=12)
h2 <- ts(data=cbind(1:24, 25:48), start=c(2001, 1), frequency=12)
h3 <- ts(data=cbind(1:4, 5:8, 9:12), start=c(2001, 1), frequency=4)
colnames(h2) <- c("aa", "bb")
colnames(h3) <- c("cc", "dd", "ee")
h1; h2; h3

h1; head(h1); tail(h1, 28)
h2; head(h2); tail(h2, 50)
h3; head(h3, 2); tail(h3); tail(h3, 8)

data(daBed); head(daBed); tail(daBed)