R: Make a Linear Differential Operator Object from a Vector

vec2Lfd {fda} | R Documentation

## 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))

    all.equal(harmaccelLfd, hmat)

[Package fda version 2.4.8 Index]