type of object of a variable in a data frame
class(data) class(data$V1) str(data) str(data$V1) dput(data) dput(data$V1)
On Wed, Mar 12, 2008 at 7:17 PM, Chang Liu <changisme at hotmail.com> wrote:
Hello! I have used read.csv to read in a data frame, and there are a few variables in it, however, when I tried is.list(data$V1)
FALSE
In fact, I have tried, they are not vectors either. I'm wondering: 1. What objects are these "lists" of data? 2. How could I find out about the type/inheritence of an object in general? 3. The reason I want it to be a list or vector, is that I want to fill in some blank values, i can't seem to do things like: data$V1[1] = 3 Is it because these variables are pointers? Is there a better way to do this? Sorry to cram so many questions in one email! Karen
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l. Click here to learn how.
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