On Sun, 19 Oct 2008, Amarjit Singh Sethi wrote:
??
Dear R-helpers,
hello
I am seeking your help in somehow??getting names of variables without quotes ("
").
Let us say,??we have a table with 3 variables V1, V2 and V3. After the table is read, I
get names of the variables??(thro' the following code) as under quotes (like
"V1"??rather than the original representation V1)
??
??x=read.table("sample.txt",header=T,sep="\t")
x
?????? V1?????? V2?????? V3
1?? 15???????? 10?????????? 4
2???? ??6????????????4???????????? 7
3?? 10?????????? 5???????????? 2
4?????? 8?????????? 6???????????? 6
nm=names(x)
nm
[1] "V1" "V2" "V3" ??In fact I need the variables in the
original??representation (i.e., as they appear in the input data file)
so as to use them repeatedly (through loop statement) in regression
analysis. Kindly help. Regards ajss
I'll second Dieter's comment about HTML mail... ARGH!!
But I will also hazard a guess that you are not going to solve your
problem by forcing "V1" to print without quotes.
Rather, you should check out
?as.formula
Pay special attention to the last case in
example( as.formula )
HTH,
Chuck
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Charles C. Berry (858) 534-2098
Dept of Family/Preventive Medicine
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http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
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