R dataframe column factor

mtcars  #look at this built in data set
str(mtcars) #allows you to see the classes of the variables (all numeric)

#one approach it to index with the $ sign and the as.factor function
mtcars$am <- as.factor(mtcars$am)
#another approach
mtcars[, 'cyl'] <- as.factor(mtcars[, 'cyl'])
str(mtcars)  # now look at the classes

Source: stackoverflow.com

Similar codes

3 votes207 views1 answer
R define nested empty list
R
0 vote175 views1 answer
How to return the date with only the day in it in r
R
0 vote192 views1 answer
Order barplot ggplot2 by value
R
0 vote198 views1 answer
R prepend to a list
R
0 vote136 views1 answer
How to loop in r using a character in a string
R
0 vote189 views1 answer
Remove , in numbers in r
R
0 vote200 views1 answer
Generate dates between dates in R
R
0 vote169 views1 answer
Edit axis labels R
R
0 vote177 views1 answer
How to remove duplicates based on the combinations of two columns r
R
0 vote194 views1 answer
L in r
R