Hi Rolf,
On 2021-03-04 03:51, Rolf Turner wrote:
I am trying to create a vignette in a package (basically just using
LaTeX code; no R calculations or data are involved).
The LaTeX code involves the use of the align* environment from the
amsmath package. When I try to run Sweave() on the *.Rnw file I get
a corresponding *.tex file, but then when I run pdflatex on that file
I get an error:
! LaTeX Error: Command \iint already defined. Or name \end...
illegal, see p.192 of the manual.
See the LaTeX manual or LaTeX Companion for explanation. Type H
<return> for immediate help. ...
l.649 ...d{\iint}{\DOTSI\protect\MultiIntegral{2}}
which is completely opaque to me.
Shouldn't be; the amsmath package defines \iint, and the error message
says that it was already defined, probably in another package you have
loaded. Easily found by googling. My first hit was
https://tex.stackexchange.com/questions/356599/command-iint-already-defined
If I don't have \usepackage{amsmath} in the *.Rnw file, I get
(unsurprisingly) an error message to the effect that the align*
environment is undefined.
Is there any way to make use of amsmath facilities in a vignette?
Absolutely, I am doing it with no problem. I have in one preamble
\documentclass[a4paper,12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
% \VignetteIndexEntry{Parametric duration models}
\newcommand{\btheta}{{\ensuremath{\boldsymbol{\theta}}}}
\newcommand{\bbeta}{{\ensuremath{\boldsymbol{\beta}}}}
\newcommand{\bz}{\ensuremath{\mathbf{z}}}
and so forth
Alternatively, is there any way to simply use the pdf output
obtained by processing an ordinary LaTeX file as a vignette? I have
done a bit of web searching on this, but all of the hits that I get
seem to be substantially out of date. They refer to putting
vignettes in /inst/doc and I'm pretty sure that this is no longer how
it's done. (But I find all of the vignette business rather
bewildering and confusing.)
Grateful for any advice.
Have you read the "Writing R Extensions"? There 'inst/doc' is mentioned
under 'Non-Sweave vignettes'.
Best, Göran Broström
cheers,
Rolf Turner
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