knitr::opts_chunk$set(echo = FALSE)
TRB has greatly simplified the submissions to its system, meaning that this template is no longer strictly required. However, there is a typical format that most people still use by default, and this template implements that change.
The template has a number of features that enable quick and painless manuscript authoring.
Standard pandoc / \LaTeX math environments are available. For example, the
probability of an individual choosing alternative $i$ in a multinomial logit
model is
\begin{equation}
P_i = \frac{exp(V_i)}{\sum_{i, j \in J}exp(V_j)} \label{eq:mnl}
\end{equation}
Equations with a \label{eq:label}
can be referred to later in the text with
\ref{eq:label}
, such as Equation \ref{eq:mnl}.
The template will automatically create a title page with the authors in the
listed order. Near the bottom of the title page, TRB requires a count of the manuscript's
words and tables. The YAML header information contains a wordcount
key where
this can be encoded. The number of tables is counted automatically on build;
a default 250 words per table can be overriden with the wordspertable
YAML
key.
The LaTeX template available from https://github.com/chiehrosswang/TRB_LaTeX_tex
contain automatic word counters that have not been implemented in this rticles
template. Authors can use the R Studio word count add-in available from
https://github.com/benmarwick/wordcountaddin.
The document has 1 inch margins as required, with the author's names in the left
heading and the page number in the right. The running header information is set
with the runningheader
YAML key. Paragraphs leading sections and subsections
are not indented, while all subsequent paragraphs in that section are. Section
heading types are defined as outlined by the old TRB Author's Guide.
The document is single-spaced in 12 point Times font. Times New Roman is a
proprietary font and is therefore not available by installation in open-source
software. While the differences between Times variants are negligible, Times New
Roman itself can be used in Mac OSX by compiling under xelatex
.
The document can use standard pandoc referencing tools for in-text
citations to figures and tables. If an R code chunk outputs a figure, the figure
number can be referred to with \@ref(fig:chunkname)
where chunkname
is the
name of the chunk that prints the figure. For example, Figure \@ref(fig:figure-example)
shows a default figure made by the R chunk below.
# Generate some sample data, then compute mean and standard deviation # in each group Speed <- cars$speed Distance <- cars$dist plot(Speed, Distance, panel.first = lines(stats::lowess(Speed, Distance), lty = "dashed"), pch = 0, cex = 1.2, col = "blue")
The template setup chunk sets echo = FALSE
for the entire document, as printing
code listings would not usually be appropriate or needed for a TRB article. But
the option is there!
The same referencing logic works for tables, with the tab:
prefix on the
chunk name instead of fig:
used for figures. Table \@ref(tab:table-example)
has a basic table. We recommend the kableExtra
package for formatting
publication-ready tables with greater control than the default knitr::kable()
function.
knitr::kable(mtcars[1:5, 1:6], format = "latex", table.envir = "table", booktabs = TRUE, caption = "Example Table")
TRB still wants numbered, unsorted citations beginning on a new page. The
template is configured to use natbib
with the unsrtnat
citation style, with
some additional logic to use parentheses instead of brackets. The YAML key
biblio-style
will allow the authors to select a different citation format, but
this is not recommended at the moment. Citations use the pandoc logic. Including
the reference in brackets [@reference]
will print only the numeric reference;
e.g. [@Feynman1963118; @Dirac1953888]. Including the reference without brackets
@reference
will print the authors and then the numeric reference; e.g.
@Feynman1963118.
The authors confirm contribution to the paper as follows: study conception and design: A. Anonymous, D. Zoolander; data collection: B. Security; analysis and interpretation of results: A. Anonymous, B. Security; draft manuscript preparation: A. Anonymous. All authors reviewed the results and approved the final version of the manuscript.
David Pritchard posted the original versions of this template in 2009 and
updated it in 2011, soon after TRB began allowing PDF submissions. Gregory
Macfarlane and Ross Wang made adjustments to the template, and Ross Wang now
maintains the \LaTeX template at
https://github.com/chiehrosswang/TRB_LaTeX_tex. Gregory Macfarlane created the rticles
template in 2021.
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