How does one stop using rowwise in dplyr?

Question

So, if one wishes to apply an operation row by row in dplyr, one can use the rowwise function, for example: Applying a function to every row of a table using dp

Answer 1

Just use ungroup()

The following produces a warning:

data.frame(a=1:4) %>% rowwise() %>% 
  group_by(a)
#Warning message:
#Grouping rowwise data frame strips rowwise nature

This does not produce the warning:

data.frame(a=1:4) %>% rowwise() %>% 
  ungroup() %>% 
  group_by(a)