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.help isvector Aug85 "Surfit Package"
.ih
NAME
isvector -- evaluate the fitted surface at a set of points
.ih
SYNOPSIS
isvector (sf, x, y, zfit, npts)
.nf
pointer sf # surface grid descriptor
real x[npts] # x array, 1 <= x[i] <= ncols
real y[npts] # y array, 1 <= y[i] <= nlines
real zfit[npts] # data values
int npts # number of data points
.fi
.ih
ARGUMENTS
.ls sf
Pointer to the surface grid descriptor structure.
.le
.ls x, y
Arrays of x and y values.
.le
.ls zfit
Array of fitted values.
.le
.ls npts
The number of points to be fit.
.le
.ih
DESCRIPTION
Fit the surface to an array of x and y values. ISVECTOR uses the coefficients
stored in the surface descriptor structure.
.ih
NOTES
Checking for out of bounds x and y values is the responsibility of the
calling program.
.ih
SEE ALSO
iseval
.endhelp
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