R create factor based on condition

Question

I need to change a column from numeric to factor based on the numeric value being higher or lower than 10.

For example with the following data:

age &         


        

Answer 1

We could use cut to change the numeric to factor column based on the condition

d.frame$hight <- cut(d.frame$hight, breaks = c(-Inf, 10, Inf), 
             labels = c('low', 'high'), right = FALSE)

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As there are only two levels, another option would be to create a logical vector and use ifelse to change the values

d.frame$hight <- factor(ifelse(d.frame$hight>=10, "high", "low"))