how to find column unique value in R
unique(df$column_name,)
#or
table(df$column_name)how to find column unique value in R
unique(df$column_name,)
#or
table(df$column_name)how to count the number of unique values in a column in r
dummyData = rep(c(1,2, 2, 2), 25)
table(dummyData)
# dummyData
# 1 2
# 25 75
## or another presentation of the same data
as.data.frame(table(dummyData))
# dummyData Freq
# 1 1 25
# 2 2 75Copyright © 2021 Codeinu
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