knitr

The knitr package has relatively recently added new notangle vignette engines, such as knitr::rmarkdown_notangle , that allow disabling of evaluation of vignette chunks. The general process of using knitr for vignettes is described here , while the specific notangle functionality is described in an answer to this question . My problem is that I can't get this to work. I can get it to pass R CMD build by including the .html output in the vignettes directory (I also put a copy in inst/doc ), but I can't get it to pass R CMD check unless I specify --no-build-vignettes , or unless I change the

I am trying to reference a table using the bookdown package. In the documentation the author only shows how to create tables using knitr::kable . ```{r table1} knitr::kable( head(iris, 20), caption = 'Here is a nice table!', booktabs = TRUE ) ``` Table \@ref(tab:table1) is here. Using knitr::kable works just fine. The caption of the table is displayed and I can reference the table. I would like to do the same with a classic hand-made markdown table but obviously the code below fails. What can I do to get a similar result as with the code above? ```{r table2, echo=FALSE, results='asis'} cat('|

In the r-markdown document given below, I use tabbed sections to display sankey plots. However, when a sankey plot is in a tab other than the first, adjusting (using htmlwidgets::onRender function) does not work. Does anybody know a way to overcome that problem? Related question: How to control node labels in Sankey diagram --- title: "Untitled" output: html_document --- ```{r setup, include=FALSE} knitr::opts_chunk$set(echo = FALSE) library(networkD3) library(htmlwidgets) nodes <- data.frame('name' = c('Node0','Node1','Node2','Node3','Node4','Node5','Node6', 'Node7','Node8','Node9','Node10',

I want to demonstrate how to write RMarkdown, where said RMarkdown demonstration is embedded within an RMarkdown document used to create the course material. Within this fenced code block, I don't want knitr to execute the chunk. I want to put something like this into my "top level" Rmarkdown document, and have everything that's between the outer fences be printed verbatim in fixed width in the output HTML document, rather than having knitr evaluate the inner embedded R code chunk and inline code. ``` --- title: "RMarkdown teaching demo" author: "whoever" --- # Major heading Here's some text

I get an error message when running the code below which is expected - I would like this to be ran and displayed in the pdf, however the error is returned in r and the code doesn't run. {r, warning=TRUE} library(survey) debug(withReplicates.svyrep.design) I have tried warning=TRUE but this doesn't work. How can I get the error displayed in the document? Add error=TRUE to the chunk options. That will result in the script running to completion with the error appearing in the output. 来源： https://stackoverflow.com/questions/34137797/rmarkdown-run-code-and-display-errors-in-document

I've just started playing with some of the new knitr features in RStudio. I've tried selecting several of the different themes in the R Markdown settings dialogue but these don't seem to have any noticeable impact on the style of my resulting document. Should it, or am I missing something? Everything just seems to come out in the default style no matter what theme I select. --- output: html_document: number_sections: yes theme: spacelab toc: yes pdf_document: default word_document: default --- Installation details: R version 3.1.1 RStudio Version 0.98.977 knitr 1.6 rmarkdown 0.2.50 htmltools 0

Is it possible to include code from an external R script in an .Rmd and simultaneously run the code, display the code, and display its results in the output .HTML file? For example, if I have x <- 1 y <- 3 z <- x + y z in external.R . In the output document I want to see the code above along with the result of z , i.e. 4. Essentially, I want the equivalent of what would happen if I copy/pasted what's above in an R chunk. So I want ```{r} some.library::some.function("external.R") ``` to be the equivalent of ```{r} x <- 1 y <- 3 z <- x + y z ``` In the output HTML file. I've tried things like

In my documents in r parts I use long codes like: ```{r} output <- "very long query for example url to some website............................................." output ``` Is there any way not to make R wrap the code automatically, let's say after 60 characters? I tried tidy=TRUE, tidy.opts=list(width.cutoff=60) option but it doesn't work. And I want the same with output, because the output of my query is some text. I want to display the whole content in many lines, not just the begining in one line. How can I do it? Things have changed since 2015, but FWIW given that you are now using