::: {.cell hash='Lecture_cache/revealjs/unnamed-chunk-28_3085af6a3b6f3b587639a3592005c4cf'}

```{.r .cell-code}
positive.count.rarefied = positive.count.rarefied[,are.still.present]
positive.motus.rare = positive.motus[are.still.present,]
```
:::