Add missing assignment

model-many.Rmd

@@ -207,10 +207,11 @@ broom::glance(nz_mod)
 We can use `mutate()` and `unnest()` to create a data frame with a row for each country:
 
 ```{r}
-by_country %>% 
+glance <- by_country %>% 
   mutate(glance = map(model, broom::glance)) %>% 
-  select(-data, -model, -resids) %>% # removing the unnecessary list columns
+  select(country, continent, glance) %>% 
   unnest(glance)
+glance
 ```
 
 (Pay attention to the variables that aren't printed: there's a lot of useful stuff there.)