predict.pffr for alternative options to extract estimated
values from a pffr object.
"Fitted values" here refers to the estimated additive predictor values,
these will not be on the scale of the response for models with link functions.## S3 method for class 'pffr':
residuals(object, reformat = TRUE, ...)
## S3 method for class 'pffr':
fitted(object, reformat = TRUE, ...)pffr-objectn x yindex matrix form (regular grid data) or, respectively, in the
shape of the originally supplied ydata argument (sparse/irregular
data), or, if FALSE,residuals.gam.ydata-like data.frame or a vector of
residuals / fitted values (see reformat-argument)