Create a Polygonal Basis
Create a Polygonal Basis
DESCRIPTION:
A basis is set up for constructing polygonal lines, consisting of
straight line segments that join together.
USAGE:
create.polygonal.basis(argvals=NULL)
REQUIRED ARGUMENTS:
None
OPTIONAL ARGUMENTS:
- argvals
-
A strictly increasing vector of argument values at which line segments
join to form a polygonal line.
VALUE:
A basis object with the type "polyg".
DETAILS:
The actual basis functions consist of triangles, each with its apex over
an argument value. Note that in effect the polygonal basis is identical
to a B-spline basis of order 2 and a knot or break value at each
argument value. The range of the polygonal basis is set to the interval
defined by the smallest and largest argument values.
SEE ALSO:
basis.fd. create.basis, create.bspline.basis
EXAMPLES:
basis <- create.polygonal.basis(seq(0,1,0.1))