I frequently have to write .qmd Quarto documents with a section at the top that references variables defined further down in the document. For example, an abstract or an executive summary.
How can I reference the values before their definition in a code block below? In the example, I want the $20 in the Executive summary to have been referenced from the profit R variable not hard coded.
---
title: "Quatro results referencing"
format: html
---
# Executive Summary
- Business is great
- Profit is $20
# Methods
A complicated equation to calculate profit
```{r}
revenue <- 100 #dollars
expenses <- 80 #dollars
profit <- revenue - expenses
```{r}
This year, our profit is $`{r} profit`
---
title: "Quatro results referencing"
format: html
---
```{r}
#| echo: false
#| label: code1
revenue <- 100 #dollars
expenses <- 80 #dollars
profit <- revenue - expenses
```
# Executive Summary
- Business is great
- Profit is $`{r} profit`
# Methods
A complicated equation to calculate profit
```{r}
#| eval: false
#| echo: true
#| label: code1
```
This year, our profit is $`{r} profit`
Obviously, this can get tedious if many code blocks are needed to produce a value for the abstract.