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 vote358 views1 answer
Score pairs of records probabilistically in r
R
0 vote350 views1 answer
Count equal values in a vector
R
0 vote358 views1 answer
R concaat string and number
R
0 vote343 views1 answer
Join matching values from x to y
R
1 vote330 views2 answers
Remove line with na r
R
1 vote340 views1 answer
Descending order a list in r
R
0 vote328 views1 answer
Generate pair with one same variable in r
R
1 vote307 views1 answer
R remove directory
R
2 votes414 views1 answer
Convert latin accents to ascii R
R
1 vote312 views1 answer
Create vector in r
R