Answers for "how can i count based on condition at a dataframe column in r"

R data.frame count items in column

setNames(as.data.frame(table(df1$asa)), c("asa", "n"))
#   asa    n
#1   aa    3
#2   bb    2
#3   cc    1
#4   dd    1

Posted by: Guest on November-22-2021

Code answers related to "how can i count based on condition at a dataframe column in r"