Language Reference

SPLINEV Function

provides cubic spline evaluations

SPLINEV( coeff<, delta<, nout>)

The SPLINEV function returns a two-column matrix containing the points of evaluation in the first column and the corresponding fitted values of the spline in the second column.

The inputs to the SPLINEV function are as follows:

coeff

is an (or ) matrix of spline coefficients, as returned by the SPLINEC Call. The coeff argument should not contain missing values.

delta

is an optional vector specifying evaluation points. If delta is a scalar, the spline is evaluated at equally spaced points delta apart. If delta is a vector arranged in ascending order, the spline is evaluated at each of these values. Evaluation at a point outside the support of the spline results in a missing value in the output. If you specify the delta argument, you cannot specify the nout argument.

nout

is an optional scalar specifying the number of fitted points desired. The default is nout=200. If you specify the nout argument, you cannot specify the delta argument.

See the section "SPLINE and SPLINEC Calls" for details and examples.