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

0 vote209 views2 answers
Connect excel to r
R
1 vote178 views1 answer
R convert matrix to list of column vectors
R
0 vote141 views1 answer
How to convert matrix to numeric in r
R
0 vote157 views1 answer
Remove , in numbers in r
R
0 vote169 views2 answers
Ggplot2 multiple lines geom_line
R
2 votes169 views1 answer
Remove rownumbers r
R
1 vote249 views1 answer
If not i startswith R
R
1 vote168 views1 answer
Create list in r
R
0 vote158 views1 answer
Truncate string in r
R
1 vote164 views1 answer
Variable assignment in r
R