r-markdown | 易学教程

Use rmarkdown/knitr to hold all code until the end

阅读更多关于 Use rmarkdown/knitr to hold all code until the end

问题 I'd like to be able to generate a document using knitr/rmarkdown that keeps all the output together, but leaves the code until the end, ideally as a referenced footnote of sorts (i.e. the code for each figure or output can be looked up in the appendix using a footnote). Is this possible? 回答1: If I understand correctly what you mean. You can add a label to your original code chunk and then refer to it using a ref.label property and prevent its further execution with eval=FALSE . For instance:

knitr::kable is there a way to reduce the font size?

阅读更多关于 knitr::kable is there a way to reduce the font size?

问题 I am using this code chunk ```{r, echo = FALSE} knitr::kable(df) ``` However I would like to reduce the size of all font inside this table so that the output looks nicer. Is there a way to do that with kable or is there another package which supports it? 回答1: You can also try library(kableExtra) . It has a lot of options to customise the table. Specifically, for font size: https://haozhu233.github.io/kableExtra/awesome_table_in_html.html#font_size df %>% kable("html") %>% kable_styling(font

how do you color the cell in rmarkdown pdf output

阅读更多关于 how do you color the cell in rmarkdown pdf output

问题 I cannot get cellcolor to work in rmarkdown: --- header-includes: - \usepackage{colortbl} - \usepackage{color} output: pdf_document --- ```{r, results="asis"} library(xtable) # Your data tab = data.frame(category = c("A","B","C"), groupA = c(.2,.3,.5), groupB= c(.6,.7,.9)) # Function to cut your data, and assign colour to each range f <- function(x) cut(x, c(0, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, Inf), labels=c("green", "red", "blue", "orange", "yellow", "purple", "brown", "white"), include

Can't change params in Rmd documents

阅读更多关于 Can't change params in Rmd documents

问题 As explained on this site it is possible to define parameters in the YAML header of a Rmarkdown file and the default values specified there can be overwritten with rmarkdown::render("foo.Rmd", params = list(param1 = "bar") . However when I try this I get the following error: params object already exists in knit environment so can't be overwritten by render params Here is a minimal reproducible Rmd document. Let's say the file name is test.Rmd . --- title: "Test" output: pdf_document params:

How to get a second bibliography?

阅读更多关于 How to get a second bibliography?

问题 In rmarkdown PDF and HTML I want two bibliographies —one for papers/books, and one for software I have used in my research. I found this related issue but it doesn't answer my question since it's concerning the combination of two *.bib files into one bibliography. I'm used to place my bibliography with <div id="refs"></div> as explained here. Possibly a second one can be placed similarly with <div id="refs_2"></div> , but I couldn't figure out how to do it since this "refs" seems not to be

multi-line equation in RMarkdown

阅读更多关于 multi-line equation in RMarkdown

问题 I am trying to create a multi-line equation in RMarkdown. I have tried the following code, extracted from http://www.rstudio.com/ide/docs/authoring/using_markdown_equations, $$ \begin{aligned} \dot{x} & = \sigma(y-x) \\ \dot{y} & = \rho x- y - xz \end{aligned} $$ however the knitred HTML document gives a single-line equation: 回答1: This code produced 2 HTML lines, as desired, when cut and paste into RStudio in Windows 7 with knitr. If the second slash at the end of the 3rd line was removed, it

Programmatically insert header and plot in same code chunk with R markdown using results='asis'

阅读更多关于 Programmatically insert header and plot in same code chunk with R markdown using results='asis'

问题 The results = 'asis' chunk option within Rmarkdown allows one to easily dynamically create text including headers. However, I wish to dynamically create a header with the asis option, but then in the same code chunk insert some graphics. The most related answer I could find for this is here: Programmatically insert text, headers and lists with R markdown, but the answer to this question does not allow both dynamic headers and plots within those dynamic headers. Here is a simple reproducible

Executing Perl 6 code in Rmarkdown

阅读更多关于 Executing Perl 6 code in Rmarkdown

问题 I want to write some tutorials on Perl 6. For this I believe Rmarkdown would be of great help. So I am trying to execute Perl 6 code within Rmarkdown document. My Perl 6 executable is in C:\rakudo\bin . So my .Rmd file with example code to accomplish this is as follow: --- title: "Example" output: html_document --- ```{r, engine='perl6', engine.path='C:\\rakudo\\bin'} my $s= "knitr is really good"; say $s; ``` However knitting the above document in Rstudio shows the following without Perl 6

How to make scrollable slides in an ioslides presentation with rmarkdown

阅读更多关于 How to make scrollable slides in an ioslides presentation with rmarkdown

问题 I am using RMarkdown to create an ioslide presentation with shiny. Some of my slides do not actually fit on one page and are truncated. Since this is a HTML output, I would like to add a scroll bar to make my long slides scrollable. I have been googling a lot and found a partial solution to make R code chunks scrollable. However I want to make my slides scrollable regardless of the content. This is a toy Rmd example giving slides not fitting on one page: --- title: "Untitled" date: "30

NOTE or WARNING from package check when README.md includes images

阅读更多关于 NOTE or WARNING from package check when README.md includes images

I have a package with a README.Rmd that I pass to rmarkdown::render() producing README.md and a directory README_files , which contains images in README.md . This looks like the tree below. README_files is not a standard package directory , so if it isn't in .Rbuildignore , checking the package with R CMD check shows a note: * checking top-level files ... NOTE Non-standard file/directory found at top level: README_files But including the directory in .Rbuildignore leads to a warning, if and only if checking the package --as-cran . IIUC Pandoc tries to generate HTML from README.md , but the