In R, how can I filter a data frame by data type using dplyr?

I am still learning R and would really appreciate it if someone could show me a simple way to filter a data frame by data type (i.e. only factors) using dplyr so that the output is just a list of variables of the chosen data type?

Thanks in advance!

EDIT:

As it was kindly pointed out, I am missing an example (first post, sorry!). I am trying to do something like the following:

df %>%
filter(typeof(.) == "integer") %>%
names()


The above just returns all of the variables in my data frame, not just those of type integer which is what I would like. I would like to be able to filter for other data types as well, not just integers :)

%>% select( is.factor(.) )

select

filter

1 Answer
1

I would do like this (package agnostic) using base R:

get_names = names(df)[sapply(df, is.factor)]
df = df[,get_names]


In dplyr, you can do:

dplyr

df <- df %>%
select_if(is.factor)


filter

select

select_if

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