Three-views HTML rendering of a symbolized_model — as_html_three

Returns a single self-contained HTML string with three tabs over the same fit:

Equation – matrix-form structural equations.
Index – per-observation equations.
Matrix (with data) – the actual numeric arrays from the fit, with head + tail rows visible and ... in the middle.

Designed to be cat()-ed inside an Rmd / Quarto chunk with results = 'asis'. The host document supplies math rendering (MathJax / KaTeX via pandoc); this function emits semantic HTML, inline CSS, and a small tab-switching script.

Usage

as_html_three_views(
  x,
  head = 5L,
  tail = 2L,
  head_cols = 5L,
  tail_cols = 2L,
  id = "sym",
  standalone = FALSE,
  file = NULL,
  ...
)

# S3 method for class 'symbolized_model_set'
as_html_three_views(
  x,
  head = 5L,
  tail = 2L,
  head_cols = 5L,
  tail_cols = 2L,
  id = "sym",
  standalone = FALSE,
  file = NULL,
  ...
)

Arguments

x: A symbolized_model with $expanded populated.
head: Number of leading rows to show in the matrix view (Tab 3 "Equations with data") before the \\vdots ellipsis. Default 5. Reasonable range 2–10; larger values produce taller widgets.
tail: Number of trailing rows to show in the matrix view after the \\vdots. Default 2. Together with head, controls how much per-observation data is visible: total rows shown = head + tail + 1 ellipsis row (or fewer if n_obs is small enough to show all rows).
head_cols: Number of leading columns to show in any matrix that has more than head_cols + tail_cols columns (e.g. the Z-matrix for a 60-species fit). Default 5. Smart-truncation prefers non-zero columns within the visible row band.
tail_cols: Number of trailing columns to show after the \\cdots ellipsis. Default 2.
id: A short identifier so multiple panels can co-exist on one page.
standalone: If TRUE, wrap the fragment in a full HTML document with a MathJax CDN bootstrap so the file renders math when opened directly in a browser (file://...). Default FALSE returns the bare fragment for embedding in an Rmd / pkgdown / Quarto page where the host document already loads MathJax.
file: If non-NULL, also write the HTML to this path. Returned value is unchanged.
...: Reserved for future use.

Value

A character vector (HTML), invisible.

Details

For a multi-node structural equation model (a symbolized_model_set, the shared parent of piecewiseSEM's symbolized_psem and drmSEM's symbolized_drm_sem), the per-node three-views widget is rendered for each node and stacked under a <h2>Node: <name></h2> header. Nodes are read from names(x$parts), so the same method serves either collator.