Customise RJwrapper.tex is not possible

[bastienchassagnol-servier]

While keeping all the lines from the original RJwrapper.tex, I used to add some extra code lines for specific maths notations (for instance, load cancel package \usepackage{cancel} to cross out terms in equations).

But it seems that knitting the document using RStudio automatically retrieves the original RJwrapper.tex, deleting any additional line of code. Then, where should I put these extra-lines designed to format my paper? In the main Rmd document, or in the RJournal.sty file?

[bastienchassagnol-servier]

In fact, I solved this specific problem, by adding a header-includes section in the YAML preamble of my paper document, enabling to add some specific Latex packages required for some of my maths notation.