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09

Command line

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Command line

1

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Rendering

So far we've used the RStudio button to 🧶

What about on the command line?

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Rendering

So far we've used the RStudio button to 🧶

What about on the command line?

rmarkdown::render("01-bakeoff-report.Rmd")
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Your turn

Instead of using the "Knit" button, try running this code in your R console:

library(rmarkdown) # needs to be loaded first
render("01-bakeoff-report.Rmd")
# or
rmarkdown::render("01-bakeoff-report.Rmd")

Now try changing the parameters:

render("01-bakeoff-report.Rmd",
       params = list(series = "9"))

If this was easy, play with the other parameters too. Or see if you can change the output format, and add output option toc = TRUE.

psst...answers on the next slide...

05:00
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The rendered document doesn't appear in a pop up and you will have to click on the newly created 01-bakeoff-report.html which corresponds to the .rmd file.

A hint for finding the parameters to a function is to select F1 when the cursor is in the word render.

The help files will appear in the bottom right panel of RStudio.

Example answer

render("01-bakeoff-report.Rmd",
       params = list(series = "9"), 
       output_format = "word_document")
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Take-aways

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Take-aways

✔️ Documents run sequentially the order of your code chunks matters

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Take-aways

✔️ Documents run sequentially the order of your code chunks matters

✔️ Click or code the flexibility of RMarkdown is that you can use RStudio or code in the console

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Take-aways

✔️ Documents run sequentially the order of your code chunks matters

✔️ Click or code the flexibility of RMarkdown is that you can use RStudio or code in the console

❗ RMarkdowns are self-contained any data use needs to be coded in the script and not "pre-loaded" in RStudio

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Take-aways

✔️ Documents run sequentially the order of your code chunks matters

✔️ Click or code the flexibility of RMarkdown is that you can use RStudio or code in the console

❗ RMarkdowns are self-contained any data use needs to be coded in the script and not "pre-loaded" in RStudio

❗ Manual parameters overwrite the output each output needs to be saved individually - this can be laborious

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⏱

Time for a break!

10:00
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Next section...

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Command line

1

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