PDF rendering of a symbolized_model in three stacked sections

Paper-ready PDF counterpart to as_html_three_views(). The same three "views" of one fitted model, laid out vertically as three sections on one PDF page (no tabs):

Index form – the per-observation equations.
Matrix form – the same equations in matrix notation.
Worked observation – the index-form equations evaluated at observation i = 1 of the data, showing the coefficient estimates plugged in and the predicted / residual decomposition.

Rendered via rmarkdown::render() with output_format = "pdf_document"; a working LaTeX install (TinyTeX or system TeX) is required.

The wide matrix-of-numbers view from the HTML widget's third tab is deliberately not included – on PDF the bmatrix of n x p numbers overflows a portrait A4 page. The worked-row at i = 1 carries the same teaching content in a fits-on-one-page form.

Usage

as_pdf_three_views(
  x,
  file,
  title = NULL,
  head = 5L,
  tail = 2L,
  head_cols = 5L,
  tail_cols = 2L,
  keep_tex = FALSE,
  ...
)

Arguments

x: A symbolized_model.
file: Output path (.pdf). Required.
title: Optional document title. Defaults to a short auto-title built from the fit's class and response.
head: Number of leading rows shown in any matrix block before the \\vdots ellipsis (default 5).
tail: Number of trailing rows shown after the \\vdots (default 2).
head_cols: Number of leading columns shown in any matrix block with more than head_cols + tail_cols columns (default 5). Smart-truncation prefers non-zero columns within the visible row band.
tail_cols: Number of trailing columns shown after the \\cdots ellipsis (default 2).
keep_tex: If TRUE, keep the intermediate .tex next to the PDF for inspection. Default FALSE.
...: Passed to rmarkdown::render().

Value

The path to the rendered PDF (invisibly).