Error when add `in` column into data.frame
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@qiuworldou-8834
Last seen 8.8 years ago
United States

Hi,

This is a question about R. 

I try to assign a vector to a data.frame with name 'in' and got error:

Error: unexpected 'in' in "refseq$in"

I just want to know why I get this error? Thank you.

refseq <- data.frame(a=letters[1:3])
refseq$in <- 1:3
data.frame • 903 views
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@ryan-c-thompson-5618
Last seen 11 months ago
Scripps Research, La Jolla, CA

"in" is a reserved word in R. It is used in the syntax for loops. You should choose a different name for that column. If you really really have to use "in" as the column name for some reason, you can do so using backticks:

refseq$`in` <- 1:3

but I don't recommend this, since you will be stuck using backticks any time you want to refer to that column by its name.

In the future, if you have a generic R question that doesn't have to do with Bioconductor, you should ask it on Stack Overflow. You're likely to get a good answer much more quickly over there.

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