# ETOOBUSY π minimal blogging for the impatient

# Think Bayes in Raku - Suite class, take 2

**TL;DR**

Of course there had to be a follow-up on the

`Suite`

class.

In previous post Think Bayes in Raku - Pmf class, take 2 we
saw an evolution of the `Pmf`

class to support multiplication of a `Pmf`

object by a hash of key/values, representing the *likelihood` of each
key.

So I decided that `Suiteβ had to evolve too:

```
class Suite is Pmf {
has &!likelihood is required;
submethod BUILD (:lh(:&!likelihood)) { }
method update ($data) { return self.multiply(&!likelihood($data)) }
}
```

This is it. Now `&!likelihood`

is supposed to be called with `$data`

only, and it takes care to calculate the likelihood across all possible
keys.

Thanks to the simplification, this implementation is simpler too, and also closer to how the data are used.