course
/
r4ds
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

typo in iteration.Rmd (#730)

This commit is contained in:
Zhuoer Dong 2018-11-19 21:35:12 +08:00 committed by Hadley Wickham
parent 3ff4336ca5
commit 323a84bd45
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
iteration.Rmd
View File

@ -953,10 +953,10 @@ x %>% accumulate(`+`)
1. Implement your own version of `every()` using a for loop. Compare it with
`purrr::every()`. What does purrr's version do that your version doesn't?
1. Create an enhanced `col_sum()` that applies a summary function to every
1. Create an enhanced `col_summary()` that applies a summary function to every
numeric column in a data frame.
1. A possible base R equivalent of `col_sum()` is:
1. A possible base R equivalent of `col_summary()` is:
```{r}
col_sum3 <- function(df, f) {