The function fds is used to create general functional objects that are not ordered by time.
The function fts is used to create functional time series objects.
The function sfts is used to create sliced functional time series objects, where the x variable is
also a time variable.
Usage
fds(x, y, xname, yname)
fts(x, y, start = 1, frequency = 1, xname, yname)
sfts(data, period = frequency(data), start = tsp(data)[1],
frequency = 1, xname, yname)
Arguments
x
Numeric vector of length p.
y
Matrix of size p x n representing n
functions of x observed at points 1,...,p.
data
An object of class ts.
period
Time period of sliced functional data. For instance, period = 12 is a monthly data.
start
The time of the first observation. Either a single number or a vector
of two integers, which specify a natural time unit and a (1-based) number of
samples into the time unit. See ts for details.
frequency
The number of observations per unit of time.
xname
Character string giving name of x vector. (optional)
yname
Character string giving name of y vector. (optional)
Value
An object of class fds or fts or sfts.
Author(s)
Rob J Hyndman and Han Lin Shang. Please, report bugs and suggestions to hanlin.shang@anu.edu.au