view release on metacpan or  search on metacpan

lib/Math/LOESS/Prediction.pm  view on Meta::CPAN

=head2 residual_scale

Estimate of the scale of the residuals.

=head2 df

Degrees of freedom of the loess fit.

It is used with the t-distribution to compute pointwise confidence
intervals for the evaluated surface. It is obtained using the formula
C<(one_delta ** 2) / two_delta>

=head1 METHODS

=head2 confidence

    confidence($alpha=0.01)

Returns the confidence intervals for predicted values, as a hashref of
C<{ fit =E<gt> $fit, upper =E<gt> $upper, lower =E<gt> $lower }>,