r - Unlist a data.frame column -


i have data.frame contains data of facebook page 167 objects

i take "message" column , separate hashtags stringr. produces list called "hashes" of 67.

msg <- page$message hashes <- str_extract_all(msg,"#\\s+")

i append hashes empty column created, called hashtags. 

page$hashtags <- na page$hashtags <- hashes

however column "hashtags" list. if unlist(page$hashtags) turns na.

conversely, if unlist "hashes", can't find way re-append data.frame because have different numbers of objects.

i feel i'm missing simple , need apply family or dplyr?

any appreciated.

for unlisting list-columns, need call unnest tidyr package.

unnest(dataframe, nameofcolumns)

best,

colin


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