fda (version 2.4.0)

vec2Lfd: Make a Linear Differential Operator Object from a Vector

Description

A linear differential operator object of order $m$ is constructed from the number in a vector of length $m$.

Usage

vec2Lfd(bwtvec, rangeval=c(0,1))

Arguments

bwtvec

a vector of coefficients to define the linear differential operator object

rangeval

a vector of length 2 specifying the range over which the operator is defined

Value

• a linear differential operator object

See Also

int2Lfd, Lfd

Examples

#  define the harmonic acceleration operator used in the
#  analysis of the daily temperature data
Lcoef <- c(0,(2*pi/365)^2,0)
harmaccelLfd <- vec2Lfd(Lcoef, c(0,365))

hmat <- vec2Lfd(matrix(Lcoef, 1), c(0, 365))

stopifnot(
all.equal(harmaccelLfd, hmat)
)