CODEWITHSUNDEEP
rr-markdown
Dambo
Dambo

Reputation: 3496

How to generate headers functionally?

How can I generate a narrative functionally in RMarkdown? For instance, say I want to generate 3 headers like

##First
##Second
#Third

from a vector c('First', 'Second', 'Third'), then knit to pdf

Upvotes: 1

Views: 45

Answers (2)

BLT
BLT

Reputation: 2552

You can reference a pre-defined list of headers in RMarkdown as follows:

```{r}
list_of_headers <- c("Title 1", "Title 2", "Title 3")
```

This is an example.

### `r list_of_headers[1]`

Stuff under the first header

### `r list_of_headers[2]`

Etc

### `r list_of_headers[3]`

Reference

Upvotes: 1

www
www

Reputation: 4224

If you're trying to knit to pdf, this solution calls on LaTeX within an R code chunk to create the headers as you requested. Just add this into an .Rmd file:

---
title: "Untitled"
author: "Ryan Runge"
date: "8/30/2017"
output: pdf_document
---

```{r eval=TRUE, results='asis' }
headers <- c('First', 'Second', 'Third')
cat(paste("\\section{",headers,"}"))
```

The output is:

enter image description here

And if you don't want the R code chunk to show in the pdf, just supply echo=FALSE in the code chunk options.

Upvotes: 1

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