knitr

问题 When I'm using the toc: yes command, the document contains "Content" as the headline of the table of contents. Due to the fact that I want to write this document in german, I also want to change the headline of the table of contents to the equivalent german word. Any suggestions on how to change this? 回答1: With this YAML header that includes LaTeX-Package babel, it works for me: --- title: "TOC in German" header-includes: - \usepackage[ngerman]{babel} output: pdf_document: toc: true number

问题 Is it possible to use Python matplotlib code to draw graph in RStudio? e.g. below Python matplotlib code: import numpy as np import matplotlib.pyplot as plt n = 256 X = np.linspace(-np.pi,np.pi,n,endpoint=True) Y = np.sin(2*X) plt.plot (X, Y+1, color='blue', alpha=1.00) plt.plot (X, Y-1, color='blue', alpha=1.00) plt.show() Output graph will be: Then I need to write a R Markdown to include these code and generate graph automatically after knitting the markdown. 回答1: One possible solution is

问题 I am writing a vignette for my R package. I want to include a .jpg image on the .Rmd file that will generate the pdf vignette. The question is: where should I store this image? I am using the packages devtools and knitr to generate vignettes (following the advise from @hadley book link). Therefore, I have the folder vignettes in my package structure. Should I just include the file there? Or should I include the image on a new folder inside 'inst/images' , as suggested for external data used

问题 I am generating a PDF document with Rmarkdown, within which I want to manually define figure numbers . Below is an example of a chunk: ```{r chunk26, fig.cap = "Fig. 5.3 My figure caption"} plot(1, 1) ``` I use a special numbering to follow the chapters of my document. The problem is that when I knit the PDF, "Figure X:" is automatically added before each caption. As a result, my figure captions look like this example: Note I have used the following parameters in the beginning of my rmarkdown

问题 I am a beginner in using Markdown (I am using it with R studio and knitr). I am struggling with a point that I hope you would be able to help me to figure it out. I would like a chunk to be evaluated only if the output_format of the rmarkdown document is pdf. In other words, the chunk option "eval" automatically set to TRUE if the knitr output was selected as "knitr PDF". Otherwise, eval = FALSE. In your view, what is the most straightforward way to do this. Many thanks in advance 回答1: Try

问题 I refer to the code example at http://shiny.rstudio.com/gallery/including-html-text-and-markdown-files.html. In my case I would like to include and R markdown file rather than a markdown. The following is my code for ui.R library(markdown) shinyUI(fluidPage( titlePanel("Tourist expenditure for the year 2012 in Malta"), fluidRow( column(2, checkboxGroupInput("id1", "Analyse by", c("Sex" = "1", "Age Group" = "2") )), column(6, h4('You entered'), verbatimTextOutput("oid1") ), column(4,

问题 Using knitr in RStudio, pander does not produce any (or correct) html output when in a for loop. Here is a minimal case, as an Rmd input file. --- title: "Untitled" output: html_document --- Testing why pander doesn't work in for loop ```{r global_options, include=FALSE} knitr::opts_chunk$set(fig.width=7, fig.height=5, echo=FALSE, warning=FALSE, message=FALSE) ``` ```{r} library(pander) r <- 1:10 print("pander at top level") pander(summary(r)) # works print("pander in for loop") for (i in 1:2

问题 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? 回答1: 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：

问题 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

问题 I'd like to name my tables from R scripts without the automatic Table 1:... prefix when using xtable() or knitr::kable() in an .Rmd file. Output is a pdf document. Here's a reproducible example from an .Rmd file: --- title: "Suppress automatic table name and number" output: pdf_document --- ```{r myirischunk, results = 'asis', tab.cap = NULL, echo = TRUE} library(xtable) print(knitr::kable(head(iris), caption = "I sure wish it would say Table 1.a")) print(knitr::kable(head(iris), caption =