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 vote328 views0 answer
R
0 vote349 views1 answer
Generate all possible combinations of a set of characters r
R
4 votes558 views1 answer
How to do linear regression in r
R
0 vote341 views1 answer
Turn a numeric dataframe to binary in r
R
0 vote448 views1 answer
Open xlsx with r
R
0 vote382 views1 answer
R - create a new empty variable in a dataset
R
0 vote382 views1 answer
Join matching values from x to y
R
2 votes504 views1 answer
R ggplot regression line
R
0 vote392 views1 answer
Extract hyperlinks in r
R
0 vote405 views1 answer
Count equal values in a vector
R