On Nov 18, 2012, at 6:34 PM, Eiko Fried wrote:
When I run this script on 9 variables, it works without problems.
Z <-
data
[,c
("s1_1234_m
","s2_1234_m
","s3_1234_m
","s4_1234_m
","s5_1234_m","s6_1234_m","s7_1234_m","s8_1234_m","s9_1234_m"
)]
However, when I run the script on 9 different variables, it does not
work:
Z <-
data
[,c
("d_s1_m
","d_s2_m
","d_s3_m","d_s4_m","d_s5_m","d_s6_m","d_s7_m","d_s8m","d_s9m"
)]
Error in `[.data.frame`(data, , c("d_s1_m", "d_s2_m", "d_s3_m",
"d_s4_m",
:
undefined columns selected
You have probably misspelled one or more the column names. For
instance I suspect that one or both of these might be lacking a second
"_" : "d_s8m","d_s9m"
If you feel thsi is wrong then you at the very least need to offer
str(data)
BTW, data is the name of a perfectly good function, so naming your
dataframe "data" is likely to create confusion.
--
David.
The first 9 variables are between 0 and 3, there are no missing
values in
the dataset.
The second 9 variables are between -3 and 3, there are no missing
values in
the dataset.
I am pretty new to R and have no idea what could cause this error.
Thank you
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
Alameda, CA, USA
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
