Displaying 2 results from an estimated 2 matches for "popcode".
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opcode
2009 Apr 10
4
split a character variable into several character variable by a character
...lp-owner" is not the place for help, but:
r-help at r-project.org
(CC-ed here)
In any case, strsplit() does the job, i.e.:
> unlist(strsplit("BCPy01-01", "-"))
[1] "BCPy01" "01"
You can work with the whole variable, like:
splitpop <- strsplit(df1$popcode, "-")
then access the first part with
> unlist(lapply(splitpop, "[", 1))
[1] "BCPy01" "BCPy01" "BCPy01" "BCPy01" "BCPy01" "BCPy01" "BCPy01" "BCPy01"
[9] "BCPy01" "BCPy01"
a...
2009 Apr 09
2
failed when merging two dataframes, why
Hi, R-listers,
Failed, when I tried to merge df1 and df2 by "codetot" in df1 and "codetoto"
in df2. I want to know the reason and how to merge them together. Data
frames and codes I have used were listed as followed. Thanks a lot in
advance.
df1:
popcode codetot p3need
BCPy01-01 BCPy01-01-1 100.0000
BCPy01-01 BCPy01-01-2 100.0000
BCPy01-01 BCPy01-01-3 100.0000
BCPy01-02 BCPy01-02-1 92.5926
BCPy01-02 BCPy01-02-1 100.0000
BCPy01-02 BCPy01-02-2 92.5926
BCPy01-02 BCPy01-02-2 100.0000
BCPy01-02 BCPy01-02-3 92.5926
BCPy01-02 BCPy01-02-3 100.0000...