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Merge branch 'master' of github.com:hadley/r4ds

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hadley 2016-07-08 16:23:23 -05:00
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iteration.Rmd
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@ -654,7 +654,7 @@ y <- x %>% map(safely(log))
str(y)
```
This would be easier to work with if we had two lists: one of all the errors and one of all the output. That's easy to get with `purrr::transpose()` (you'll learn more about `transpose()` in [transpose])
This would be easier to work with if we had two lists: one of all the errors and one of all the output. That's easy to get with `purrr::transpose()` (you'll learn more about `transpose()` in [Switching levels in the hierarchy])
```{r}
y <- y %>% transpose()
@ -780,7 +780,7 @@ params
```
As soon as your code gets complicated, I think a data frame is a good approach because it ensures that each column has a name and is the same length as all the other columns.
We'll come back to this idea in [hierarchy], and again when we explore the intersection of dplyr, purrr, and model fitting.
We'll come back to this idea in [Handling hierarchy], and again when we explore the intersection of dplyr, purrr, and model fitting.
### Invoking different functions