fun.explinear: A function to evaluate the exponential of a functional data...

In Data2LD: Functional Data Analysis with Linear Differential Equations

Description

Coefficient functions in linear differential systems are often required to be strictly positive. This can be achieved by defining the coefficient function to be the exponential of a functional data object, and using this as the user-defined coefficient function fun$fd that evaluates the coefficient.

Usage

 fun.explinear(tvec, bvec, Bbasisobj)

Arguments

tvec	A vector of times at which the function is to be evaluated.
bvec	A vector or a single column of coefficient values for the functional data object.
Bbasisobj	A functional basis object.

Details

The length of argument bvec must match the number of basis functions in argument Bbasisobj.

Value

A numeric vector of the same length as that of argument tvec containing the exponentials of the values of the functional basis object.

References

J. O. Ramsay and G. Hooker (2017) Dynamic Data Analysis. Springer.

See Also

fun.explinear

Data2LD documentation built on Aug. 6, 2020, 1:08 a.m.