Change the column type of data frame

Question

I have a data frame containing huge amount of values. The data frame is as follows

> datedPf
            date ticker quantity
96828 2013-01-11    ABT      700
96829 2013-01-11    AMD     9600
96830 2013-01-11    AMG      600
96831 2013-01-11   AGCO      800
96832 2013-01-11      A     1300
etc...

The type of the "ticker" and "quantity" columns are factor. I found this using class(datedPf$ticker) and class(datedPf$quantity) respectively. But the type of the "date" column is date. I want to change that type to factor. How can I change this?

I think you should check using `class(datedPf$ticker)`, not `typeof`. It gives R's internal storage mode of the object — Arun, Mar 15 '13 at 12:37
You can just do `str(datePf)` to see the structure (types) of your data — alexwhan, Mar 15 '13 at 12:44

score 18 · Accepted Answer · answered Mar 15 '13 at 12:44

18

datedPf$date = as.factor(datePf$date) but are you sure that it is what you want to do ?

answered Mar 15 '13 at 12:44

statquant

13,672
21
91
162

Change the column type of data frame

1 Answers1

Linked