Applies spline smoothing to the values
in selected columns of a function value table.
Usage
smooth.fv(x, which = ".", ...)
Arguments
x
Values to be smoothed.
A function value table (object of class "fv",
see fv.object).
which
Character vector identifying which columns of the table
should be smoothed. Either a vector containing names
of columns, or the string "." representing all the
columns that are plotted by default.
...
Extra arguments passed to smooth.spline to
control the smoothing.
Value
Another function value table (object of class "fv")
of the same format.
Details
smooth.spline is applied
to each of the selected columns in turn
(using the function argument as the $x$ coordinate
and the selected column as the $y$ coordinate).
The original function values are then replaced by the corresponding
smooth interpolated function values.