Values of Basis Functions or their Derivatives
eval.basis |
Language Reference for FDA Library
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Values of Basis Functions or their Derivatives
DESCRIPTION:
A set of basis functions are evaluated at a vector of
argument values. If a linear differential object is
the values are of the result of applying the the operator
to each basis function.
USAGE:
eval.basis(evalarg, basisobj, Lfdobj=0)
REQUIRED ARGUMENTS:
- evalarg
-
a vector of argument values.
- basisobj
-
a basis object defining basis functions whose values
are to be computed.
OPTIONAL ARGUMENTS:
- Lfdobj
-
either a nonnegative integer or a linear differential.
operator object.
VALUE:
a matrix of basis function values with rows corresponding
to argument values and columns to basis functions.
DETAILS:
Note that if a linear differential operator object is supplied,
the basis must be such that the highest order derivative can be
computed. If a B-spline basis is used, for example, its order
must be one larger than the highest order of derivative
required.
SEE ALSO:
getbasismatrix, eval.fd, plot.basis