Evaluate a Named Chunk — eval_named_chunk • mark

Evaluate a named chunk from an Rmd file.

Usage

eval_named_chunk(rmd_file, label_name)

Arguments

rmd_file: Absolute path to rmd file
label_name: Name of label

Value

The value from the evaluated code chunk

Examples

temp_rmd <- tempfile(fileext = ".rmd")

text <- '
```{r not this label}
print("that is wrong")
```

```{r hello label}
text <- "hello, world"
print(text)
print(TRUE)
```

```{r another label}
warning("wrong label")
```
'
if (FALSE) { # \dontrun{
writeLines(text, con = temp_rmd)

eval_named_chunk(temp_rmd, "hello label")
# [1] "hello, world"
# [1] TRUE

file.remove(temp_rmd)
} # }