How do I render the same qmd multiple times, with different parameters, through _quarto.yml

[f2il-kieranmace]

Description

I have one qmd and want to render it multiple times. How would I pass these render params to _quarto.yml?

using cli I would do the following:

quarto render analysis.qmd -P USA
quarto render analysis.qmd -P UK
quarto render analysis.qmd -P SA

its unclear how this is done when defining the render using yml

project: 
  type: website
  render:
    analysis.qmd
website
  title: "Test"
  navbar:
    left:
      - href: analysis.qmd
         text: USA analysis
      - href: analysis.qmd
         text: UK analysis
      - href: analysis.qmd
        text: South Africa analysis
format: 
  html:
    toc: true

Feels like there should be a render section in the documentation here: https://quarto.org/docs/projects/quarto-projects.html#render-targets

[f2il-kieranmace]

I've come up with a solution that works for me:

This is my _quarto.yml file

project: 
  type: website
  render:
    - index.qmd
    - US_analysis.qmd
    - UK_analysis.qmd
    - SA_analysis.qmd
website
  title: "Test"
  navbar:
    left:
      - href: US_analysis.qmd
         text: USA analysis
      - href: UK_analysis.qmd
         text: UK analysis
      - href: SA_analysis.qmd
        text: South Africa analysis
format: 
  html:
    toc: true

second step was to create a generic analysis.qmd file, which has all of the R code.

final step is to create tiny qmd files for each page, that effectively are the params, and include the analysis.qmd code. here's an example:

---
title: "USA"
params:
  country: USA
---
{{< include analysis.qmd >}}

[mcanouil]

Why do you need/want parameters here? Parameters are for computations.

Simply use the --metadate/-M flag.

quarto render index.qmd --metadata title:"My Name is Whatever"

If you don't like redundancy:

---
title: "My Name is {{< meta custom-author >}}"
custom-author: Me
format: html
---

This is a playground for Quarto.

quarto render index.qmd --metadata custom-author:"Nobody"

[aborruso]

Thank you @mcanouil. It's 6 p.m. here, and my 50s are feeling strong now: I'm going to break off and go to sleep.

Sorry for the wrong and stupid question

[cscheid]

For what's worth (speaking as a Quarto developer here): I do think that it's a bit ugly that we have this separation between metadata and parameters. I wonder what it would take for us to improve things.

[mcanouil]

For what's worth (speaking as a Quarto developer here): I do think that it's a bit ugly that we have this separation between metadata and parameters. I wonder what it would take for us to improve things.

Possibly something to be done when harmonising Jupyter/knitr engine handling of parameters.

[mcanouil]

Sorry for the wrong and stupid question

The only wrong/stupid questions are the ones never asked.