confBands.OEFPIL: Confidence and prediction bands for OEFPIL object
In OEFPIL: Optimal Estimation of Function Parameters by Iterated Linearization

Description Usage Arguments Details Value See Also Examples

Function calculates pointwise confidence bands and prediction bands of estimated function from an object of class "OEFPIL".

1 2	## S3 method for class 'OEFPIL' confBands(object, xx, signif.level = 0.05, new.obs.variance)

`object`	an object of class `"OEFPIL"` (a result of a call to `OEFPIL`).
`xx`	a sequence of x-coordinates of points for computing confidence and prediction intervals. If missing, the default sequence `seq(from = min(x), to = max(x), length.out = 301)` is used.
`signif.level`	a numerical value or a vector of significance levels for confidence bands. If missing, the default value 0.05 is used.
`new.obs.variance`	the variance of a new observation for prediction interval computing.

An argument signif.level can be one numerical value or vector of numerical values of significance levels for confidence intervals.

If new.obs.variance is not defined by user, the average variance in the dependent variable is used to compute prediction intervals.

Returns an object of type list containing the following components.

`xx`	a numerical vector of points where intervals are calculated.
`yy`	a numerical vector with values of estimated function in `xx`.
`PointwiseCB`	a matrix of confidence intervals at points `xx`.
`PredictCB`	a matrix of prediction intervals at points `xx`.

OEFPIL, plot.OEFPIL

##-- Continuing the coef.OEFPIL(.) example:

##Use of confBands function with default parameters
a <- confBands(st1)
str(a)

##Computing two different confidence bands in one step
b <- confBands(st1, signif.level = c(0.01,0.05))
str(b)