Summary method for lgspline Objects
# S3 method for lgspline
summary(object, ...)An object of class summary.lgspline. This object is a list
containing detailed information from lgspline fit, prepared for
display. Its main components are:
The family object or custom list specifying the distribution and link.
The number of observations (N) used in the fit.
The number of original predictor variables (q) supplied.
The number of partitions (K+1) minus 1.
The number of basis functions (coefficients) estimated per partition (p).
A character string ("Yes" or "No") indicating if the dispersion parameter was estimated.
The critical value (critical_value from the fit) used by the print.summary.lgspline method for confidence intervals.
A matrix summarizing univariate inference results. Columns typically include 'Estimate', 'Std. Error', test statistic ('t value' or 'z value'), 'Pr(>|t|)' or 'Pr(>|z|)', and confidence interval bounds ('CI LB', 'CI UB'). This table is fully populated only if return_varcovmat=TRUE was set in the original lgspline call. Otherwise, it defaults to a single column of estimates.
The estimated (or fixed) dispersion parameter, \(\tilde{\sigma}^2\).
The calculated trace term \(\text{trace}(\mathbf{XUGX}^T)\), related to effective degrees of freedom.
Number of observations (N), re-included for convenience and printing.
An lgspline model object
Not used.