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closes #471 unclear question "How many species...?" #649

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4 changes: 2 additions & 2 deletions 02-starting-with-data.Rmd
Original file line number Diff line number Diff line change
Expand Up @@ -174,15 +174,15 @@ objects besides `data.frame`.
>
> * What is the class of the object `surveys`?
> * How many rows and how many columns are in this object?
> * How many species have been recorded during these surveys?
> * How many genera have been recorded during these surveys? (Hint: genera is the plural of genus).
>
> ```{r, answer=TRUE, results="markup", purl=FALSE}
>
> str(surveys)
>
> ## * class: data frame
> ## * how many rows: 34786, how many columns: 13
> ## * how many species: 48
> ## * how many genera: There are 26 unique genera in the `genus` column.
>
> ```

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