::: {.cell hash='Lecture_cache/revealjs/unnamed-chunk-31_fe65419ca442bc16a2c5f209e9b70b11'}

```{.r .cell-code}
table(colSums(positive.count.relfreq) == 0)
```

::: {.cell-output .cell-output-stdout}
```

FALSE 
 5579 
```
:::
:::