```
tidy.source(source = "ugly.R", 
            file = "pretty.R", 
            reindent.spaces = 2, 
            width.cutoff = 72)

```

The above did not wrap the code at column 72, my output was as follow:

```
pwr.norm.test(d = (19.4 - 18.4)/2.8, n = 100, sig.level = 0.05, alternative = "two.sided")
pwr.norm.test(d = (18.9 - 18.4)/2.8, n = 200, sig.level = 0.05, alternative = "two.sided")
pwr.norm.test(d = (18.4 - 18.4)/2.8, n = 10000, sig.level = 0.05, alternative = "two.sided")

```

Did I do it wrongly? Also, there was no space before and after the `"/"` sign after formatting. Was that supposed to be correct? Thanks.