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I want to dump the contents of a text file inside my R markdown (rmd). I tried using the R command: system("cat a.csv"). This command show the file contents in R, but produces no output when I knit the file in R studio.
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To open a new file, click File > New File > R Markdown in the RStudio menu bar. A window will pop up that helps you build the YAML frontmatter for the . Rmd file. Use the radio buttons to select the specific type of output that you wish to build.
You can embed an R code chunk like this: ```{r} summary(cars) ``` You can also embed plots, for example: ```{r, echo=FALSE} plot(cars) ``` ### Header 3 Note that the `echo = FALSE` parameter was added to the code chunk to prevent printing of the R code that generated the plot. I tried running this in RStudio v 0.98.
We can insert headings and subheadings in R Markdown using the pound sign # . There are six heading/subheading sizes in R Markdown. The number of pound signs before your line of text determines the heading size, 1 being the largest heading and 6 being the smallest.
You can preview your file by using the shortcut shift + ctrl + k on rmarkdown::render("file. Rmd", params = "ask") (or shift + command + k for Mac).
You can use either
```{r engine='bash', comment=''}
cat a.csv
```
or
```{r comment=''}
cat(readLines('a.csv'), sep = '\n')
```
The former solution requires Bash. The latter one is pure R.
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