dataframe subsetting
Ryan - Puzzling. My best guess is a misspelling or a truncation in the column name "intent" within latdata in the context of
unlikely <- latdata[latdata$intent %in% c(1,2,3,4),]
but I do not see any such misspelling in your email. Could you try again, using some other way to specify the column on which you wish to subset ? Such as: figure out what number the column is (say it's the fifth column in latdata) and use
unlikely <- latdata[latdata[[5]] %in% c(1,2,3,4),]
Otherwise, your R syntax looks fine to me. Try also asking
is.factor(latdata$intent)
but I don't think that would have caused the error message you see. - tom blackwell - u michigan medical school - ann arbor -
On Wed, 10 Sep 2003, Ryan Thomas Moore wrote:
I can create a small dataset, "x" below, and subset out rows based on values of a certain variable. However, on the dataset I'm working on now, "latdata" below, I get a subscript error. Any advice is appreciated! Ryan Successful:
is.data.frame(x)
[1] TRUE
x
X1 X2 X3 1 1 3 5 2 2 4 6
x[x$X2 %in% c(3),]
X1 X2 X3 1 1 3 5 Unsuccessful:
is.data.frame(latdata)
[1] TRUE
is.numeric(latdata$intent)
[1] TRUE
table(latdata$intent)
1 2 3 4 5 6 34 23 67 179 996 2
unlikely <- latdata[latdata$intent %in% c(1,2,3,4),]
Error in x[[j]] : subscript out of bounds ------------------------------------------ Ryan T. Moore ~ Government & Social Policy Ph.D. Candidate ~ Harvard University