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USe {{r}} to not evaluate but just print these chunks

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mine-cetinkaya-rundel 2023-05-26 14:30:51 -04:00
parent fa76f8154d
commit 9470637463
1 changed files with 4 additions and 4 deletions
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quarto.qmd
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@ -601,13 +601,13 @@ On subsequent runs, knitr will check to see if the code has changed, and if it h
The caching system must be used with care, because by default it is based on the code only, not its dependencies. The caching system must be used with care, because by default it is based on the code only, not its dependencies.
For example, here the `processed_data` chunk depends on the `raw-data` chunk: For example, here the `processed_data` chunk depends on the `raw-data` chunk:
```{r} ``` {{r}}
#| label: raw-data #| label: raw-data
rawdata <- readr::read_csv("a_very_large_file.csv") rawdata <- readr::read_csv("a_very_large_file.csv")
``` ```
```{r} ``` {{r}}
#| label: processed_data #| label: processed_data
#| cache: true #| cache: true
@ -619,7 +619,7 @@ processed_data <- rawdata |>
Caching the `processed_data` chunk means that it will get re-run if the dplyr pipeline is changed, but it won't get rerun if the `read_csv()` call changes. Caching the `processed_data` chunk means that it will get re-run if the dplyr pipeline is changed, but it won't get rerun if the `read_csv()` call changes.
You can avoid that problem with the `dependson` chunk option: You can avoid that problem with the `dependson` chunk option:
```{r} ``` {{r}}
#| label: processed-data #| label: processed-data
#| cache: true #| cache: true
#| dependson: "raw-data" #| dependson: "raw-data"
@ -638,7 +638,7 @@ This is an arbitrary R expression that will invalidate the cache whenever it cha
A good function to use is `file.info()`: it returns a bunch of information about the file including when it was last modified. A good function to use is `file.info()`: it returns a bunch of information about the file including when it was last modified.
Then you can write: Then you can write:
```{r} ``` {{r}}
#| label: raw-data #| label: raw-data
#| cache.extra: file.info("a_very_large_file.csv") #| cache.extra: file.info("a_very_large_file.csv")