Labelling and automatic caption for plots in quarto in a for loop

Question

I have a MWE (see below, adapted from the Quarto doc), and I am wondering:

Why the label fig-test is not found
Is it possible to automatise the caption with a 'for loop' in the yaml? I found a beginning of answer here but I wonder if the language evolved since then

---
title: "MWE"
lightbox:
  match: auto
format:
  html:
    toc: true
    include-in-header: mathjax.html
    code-fold: true
    df-print: paged
    number-sections: true
    theme:
      light: cerulean
      dark: darkly
    margin: 5% 0;
---
See @fig-test
```{r}
#| label: fig-test
#| fig-cap: 
#|   - Caption for first plot
#|   - Caption for second plot
#| lightbox: 
#|   group: test_group

for (i in 1:2)
    plot(rnorm(100), pch = 19, cex = 0.5)
```

mistral · Accepted Answer · 2025-03-06 07:48:59Z

0

It seems that for the label to work, it is required to put both a caption and at least one sub-caption. If there is one sub-caption only, then it will be used for the subplots.

This is a MWE that worked for me, with two plots and two sub-captions (although one was already enough to make it work):

---
title: "MWE"
lightbox:
  match: auto
format:
  html:
    toc: true
    include-in-header: mathjax.html
    code-fold: true
    df-print: paged
    number-sections: true
    theme:
      light: cerulean
      dark: darkly
    margin: 5% 0;
---
See @fig-test
```{r}
#| label: fig-test
#| fig-cap: Random plots
#| fig-subcap: 
#|   - Random 1
#|   - Random 2

for (i in 1:2)
    plot(rnorm(100), pch = 19, cex = 0.5)
```

answered Mar 6 at 7:48

mistral

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