Description Usage Arguments Value Author(s)
Numerical derivatives and integrals of functions bs()
and ns()
at their first argument.
1 2 3 4 5 6 7 8 9 10 11 12 13 | dns(x, df = NULL, knots = NULL, intercept = FALSE,
Boundary.knots = range(x), eps = 1e-03)
dbs(x, df = NULL, knots = NULL, intercept = FALSE,
Boundary.knots = range(x), eps = 1e-03)
ins(x, df = NULL, knots = NULL, intercept = FALSE,
Boundary.knots = range(x), from = 0, weight.fun = NULL,
integrand.fun = NULL, ...)
ibs(x, df = NULL, knots = NULL, intercept = FALSE,
Boundary.knots = range(x), from = 0, weight.fun = NULL,
integrand.fun = NULL, ...)
|
x, df, knots, intercept, Boundary.knots |
see the help pages of functions |
eps |
a numeric scalar denoting the step length for the central difference approximation, which calculates the derivative. |
from |
a numeric scalar denoting the lower limit of the integral. |
weight.fun |
a function to be applied as weights. |
integrand.fun |
a function to be applied in the integrand. |
... |
extra arguments passed to |
an object of class dns
, dbs
, ins
or ibs
.
Dimitris Rizopoulos d.rizopoulos@erasmusmc.nl
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