describe() throws error when the df %>% select() returns 0 - Githubissues

b-rodrigues / brotools

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describe() throws error when the df %>% select() returns 0 #7

Open amysheep opened 5 years ago

amysheep commented 5 years ago

eg the describe_list function

`df %>%

select_if(is.list) %>%
tidyr::gather(variable, value) %>%
group_by(variable) %>%
summarise_all(funs(n_missing = sum(is.na(unique(unlist(value)))),
nobs = length(unlist(value)),
n_unique = length(unique(unlist(value))))) %>%
mutate(type = "List") Error: Column variable is unknown

df %>%
select_if(is.list) %>%
tidyr::gather(variable, value) data frame with 0 columns and 9474 rows```