aicplot {locfit} | R Documentation |
The aicplot
function loops through calls to the aic
function (and hence to link{locfit}
), using a different
smoothing parameter for each call.
The returned structure contains the AIC statistic for each fit, and can
be used to produce an AIC plot.
aicplot(..., alpha)
... |
arguments to the aic , locfit
functions. |
alpha |
Matrix of smoothing parameters. The aicplot function
loops through calls to aic , using each row of
alpha as the smoothing parameter in turn. If alpha
is provided as a vector, it will be converted to a one-column
matrix, thus interpreting each component as a nearest neighbor
smoothing parameter. |
An object with class "gcvplot"
, containing the smoothing
parameters and AIC scores. The actual plot is produced using
plot.gcvplot
.
locfit
,
locfit.raw
,
gcv
,
aic
,
plot.gcvplot
data(morths) plot(aicplot(deaths~age,weights=n,data=morths,family="binomial",alpha=seq(0.2,1.0,by=0.05)))