Merge columns in R

Question

I want to merge two columns of a data frame into one long column using R. I have a reproducible data below:

data<-data.frame(x=c(4,5,6,7,7,7),y=c(3,4,5,6,7,7))         


        

Answer 1

You can convert the dataframe to matrix and then to vector :

data.frame(new = c(as.matrix(data)))

#   new
#1    4
#2    5
#3    6
#4    7
#5    7
#6    7
#7    3
#8    4
#9    5
#10   6
#11   7
#12   7

Or get the data in long format :

tidyr::pivot_longer(data, cols = everything())

and keep only the value column.