Inline Reporting Redux

In a couple of other posts, I discussed strategies for inline reporting of $p$ values based on methods described by Dr. Pat Schloss and the use of lists with inline reporting based on Tristan Mahr’s post on lists for reporting. About a year ago, Garrick Aden-Buie began work on epoxy which is used for “extra-strength inline syntax.” Let’s give it a go…

Here we perform a one sample t-test and assign it to a variable. Here is automatically gets added to a list which can be accessed with the $\mathrm{\$}$ operand.

result <- t.test(CO2$conc, mu=550)

From this we get a $p$-value.

result$p.value

[1] 0.0006133941

Unfortunately, the result isn’t formatted very nicely.

In the past, following the Schloss method, I would have used the scales::pvalue() verb to format the value.

This would be written as: $p$ = `r scales::pvalue(result$p.value)` to produce $p$ = <0.001. However, the syntax to achieve this is a bit complicated. The epoxy library makes this easier.

library(epoxy)

An epoxy chunk written like this…

```{epoxy}
$p$ = {result$p.value}
```

will produce this…

$p$ = 0.000613394053155454

But reformatting with epoxy, which relies on the same scales() package under the hood, does it very simply.

```{epoxy}
$p$ = {.pvalue result$p.value}
```

will produce this…

$p$ = <0.001

Documentation has options for various inline transformers. For example, we might want to do something with money. For example we might write:

```{epoxy}
I want to find {.dollar 123456789} dollars.
```

this will produce…

I want find $123,456,789 dollars.