R vector values in data area

Question

R vector values in data area

I have a dataframe and would like to add a new column where the values are vectors. Is this possible in R?

Thank,

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jinni 26 Mar '12 at 3:33

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1 answer

Hong ooi · Accepted Answer · 2012-03-26T03:51:12+0000

You can save the list as part of a dataframe, which is one way to have vector-valued entries. For example:

m <- data.frame(a=1:10)
m$l <- lapply(1:10, function(x) c(x, x + 1))
m$l

As an example of how this is actually used in R, a POSIXlt

date is actually a list with components giving year, month, day, etc. When you store a date variable like this in a data frame, what is stored is a list of vectors.

R vector values ​​in data area

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R vector values in data area