Yorick Function Reference
Interpolation and Lookup Functions
In the following function, y and x are onedimensional
arrays which determine a piecewise linear function y(x). The x
must be monotonic. The xp (for x prime) can be an array of any
dimensionality; the dimensions of the result will be the same as the dimensions
of xp.
digitize(xp, x) returns indices of xp values
in x
interp(y, x, xp) returns yp, xp
interpolated
into y(x)
integ(y, x, xp) returns the integrals of y(x) from
x(1) to xp
Note that integ is really an areaconserving interpolator.
If the xp coincide with x, you probably want to use
(y (zcen)*x (dif))(cum)
instead.
The online help documentation for interp describes
how to use interp and integ with multidimensional y
arrays.
