r - Inserting a page break within a code chunk in rmarkdown (converting to pdf) -

-

i using rmarkdown, pandoc , knitr create pdf including chunks of r code. within code chunk have loop prints number of graphs , statistical output.

i insert page break loop (to appear in pdf output). page break occur after each graph printed, ensure each graph printed on 1 page , statistical output on next.

i have been unable find way of including page break in r code chunk. have tried cat("\\newpage") , cat("\\pagebreak") in hopes recognized pandoc no avail (it printed verbatim in final pdf).

suggestions appreciated. here code have far:

```{r, echo =false, message=false, warning=false, comment=na, results='asis'} library("markdown")  library("rmarkdown")  library("knitr") library("ggplot2") (v in values){  # read in file testr <- read.csv(file.path, header=t)  print(ggplot(testr, aes(x=time, y=value, color=batch)) + geom_point(size = 3) + xlab ("timepoint") + ylab (v) + scale_x_continuous(breaks=seq(0, 60, by=6)) + ggtitle(paste("scatterplot of batches ", v, sep=""))) ggsave(paste(timestamp, "__",         "scatterplot of batches ", v, ".jpeg", sep = ""))   cat("\\pagebreak") writelines(v) writelines("\n") writelines("\n test homogenity of slopes \n") av1 <- aov(value~time*batch, data=testr) print(summary(av1)) } ```

see below reduced , reproducible example. answer , general remarks:

  • to dynamically create new pages or sections in markdown document use results='asis' in chunk options.
  • you have add linebreak (\n) after \\pagebreak or else "valueforv" pasted directly after "\linebreak", results in undefined control sequence error.
  • make sure \newpage , \pagebreak in separate line using linebreaks \n before.

  • escape \newpage , \pagebreak (i.e., \\newpage, \\pagebreak).

    --- title: "test" output: pdf_document ---  ```{r, echo=false, results='asis'} (i in 1:3) {   print(ggplot2::qplot(i, i+1))   cat("\n\n\\pagebreak\n")   writelines("valueforv") } ```

Comments

Post a Comment

Popular posts from this blog

python - pip install -U PySide error -

-
does know how avoid following error when running pip install -u pyside per official website instructions here: https://pypi.python.org/pypi/pyside/#installing-pyside-on-a-mac-os-x-system note have done brew install qt successfully. you using pip version 7.0.3, version 7.1.2 available. should consider upgrading via 'pip install --upgrade pip' command. collecting pyside using cached pyside-1.2.4.tar.gz installing collected packages: pyside running setup.py install pyside complete output command /applications/anaconda/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-build-cpxemt/pyside/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-0r7hri-record/install-record.txt --single-version-externally-managed --compile: ...
Read more

arrays - C++ error: a brace-enclosed initializer is not allowed here before ‘{’ token -

-
simple question: i'm trying initialize array within c++ class declaration: using namespace std; #include <string> class myclass{ public: string myarray[] = {"a","b","c"}; }; and i'm getting error: error: brace-enclosed initializer not allowed here before ‘{’ token no, without complied c++11 compiler, cannot initialize member array in declaration. have initialize array member in constructor. , don't use open array if know number of elements initialize array.
Read more

cytoscape.js - How to add nodes to Dagre layout with Cytoscape -

-
i trying add nodes dagre graph through cityscape.js. problem nodes not painted. code have: cy.add({ group: "nodes", data: { id:"n0",name:"n0",weight: 75 }, }); $.ajax(url).done(function(jsontree){ var newnodes=[]; for(var i=1;i<6;i++){ //var child = jsontree.result[i]; newnodes.push( { group: "nodes", data: { id: "n"+i, name:"n"+i}}, { group: "edges", data: { id: "e"+i, source: "n0", target: "n"+i } } ); } cy.add(newnodes); any ideas? have used loaded function reload graph not work. not know if have use specific function reload graph. thank in advance. you need add positions new nodes. cytoscape.js docs : it important note positions of newly added nodes must defined when calling cy.add(). nodes can not placed in graph without valid position — otherwise not displayed. yo...
Read more