[R] Arithmetic on multiple files

Benjamin Müller ben_mueller.bm at web.de
Wed Dec 2 18:16:56 CET 2009


Ain't it as simple as load them ("read()" or "read.csv()"), add (+) 
these dataframes and thats all? you also can export them again with 
"write()".

greets,
Benjamin Müller

Muhammad Rahiz schrieb:
> Dear R-users,
>
> I'd like to perform arithmetic functions on 1000 files containing a 
> 2000x2000 matrix. Can anyone advise?
>
> For example,
>
> File1            File2           Output
> 1 1 1           4 4 4           5 5 5
> 2 2 2     +    5 5 5    =     7 7 7
> 3 3 3           6 6 6           9 9 9
>
>
>
> Muhammad
>




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