The default argument values are toprule = "\\toprule", midrule = "\\midrule", and bottomrule = "\\bottomrule". The table only has horizontal lines for the table header and the bottom row. There are no vertical lines in the table, but you can add these lines via the vline argument. The horizontal lines can be defined via arguments toprule, midrule, linesep, and bottomrule. You can set this option as a global R option so you do not need to set it for every single table, e.g., options( = ""). You can explicitly remove the vertical lines via the vline argument, e.g., knitr::kable(iris, vline = "") (the default is vline = "|"). Table columns are separated by vertical lines. Please note that when you need additional LaTeX packages such as booktabs for an R Markdown document, you have to declare these packages in YAML (see Section 6.4 for how).ĭepending on whether the argument booktabs is TRUE or FALSE (default), the table appearance is different. 17.7 Organize an R Markdown project into a research website with workflowr.17.6 Collaborate on Rmd documents through Google Drive with trackdown.17.3 Render R Markdown with rmarkdown::render().16.9 Write books and long-form reports with bookdown.16.8 R Markdown templates in R packages.
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14.4 Generate a plot and display it elsewhere.14.2 Use an object before it is created (*).14.1.2 Use the same chunk label in another chunk.14.1.1 Embed one chunk in another chunk (*).
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1.2 Install LaTeX (TinyTeX) for PDF reports.1.1 Use a Pandoc version not bundled with the RStudio IDE.