show confidence and prediction bands on plots
numeric vectors
a vector subset of 'confidence'
and 'prediction'
confidence level
model to be used for generating bands
a vector of length 1 or 2 giving the color of bands
a vector of length 1 or 2 giving the line type for bands
logical vector of length 1 or 2 indicating whether confidence and prediction bands should be shown
logical indicating whether the model fit should be shown
a vector of length 1 or 2 alpha level for bands
a vector of length 1 or 2 giving line width for bands
resolution parameter for bands (increase to get better resolution)
additional arguments