Description Usage Arguments Details Value Author(s) References
bsp is used to approximate smooth functions by B-splines.
1 | bsp(x,kn)
|
x |
values of the explanatory variable. |
kn |
(optional) the number of internal knots . The default value is [n^{1/5}], where n is the sample size |
.
This function uses the routine bs()
of the R package splines.
x |
the B-spline basis matrix, which is cubic. |
Luz Marina Rondon <lumarp@gmail.com> and Heleno Bolfarine
De Boor, C. (1978). A practical Guide to Splines. Applied Mathematical Sciences. Springer-Verlag, New York.
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