Compute Likelihood Cross Validation Statistic.
The calling sequence for lcv matches those for the
locfit or locfit.raw functions.
The fit is not returned; instead, the returned object contains
likelihood cross validation score for the fit.
The LCV score is exact (up to numerical roundoff) if the
ev="cross" argument is provided. Otherwise, the influence
and cross validated residuals
are computed using locfit's
standard interpolation based approximations.
lcv(x, ...)
x |
model formula |
... |
other arguments to locfit |
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