Fix typo in section 12.3.1 (Gathering) (#431)

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Kara Woo 2016-10-03 05:41:41 -07:00 committed by Hadley Wickham
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@ -125,7 +125,7 @@ Typically a dataset will only suffer from one of these problems; it'll only suff
### Gathering
A common problem is a dataset where some of the column names are not names of variables, but _values_ of a variable. Take `table4a`: the column names `1991` and `2000` represent values of the `year` variable, and each row represents two observations, not one.
A common problem is a dataset where some of the column names are not names of variables, but _values_ of a variable. Take `table4a`: the column names `1999` and `2000` represent values of the `year` variable, and each row represents two observations, not one.
```{r}
table4a