[R] Histograms with strings,

David Wolfskill r at catwhisker.org
Fri Mar 18 00:42:17 CET 2011


On Thu, Mar 17, 2011 at 10:06:21PM +0000, Khanvilkar, Shashank wrote:
> Hello,
> Thanks in advance for any help,
> 
> I have read a CSV file in which there is a column for an IP addr as in:
> 
> tmpInFile$V2
>   [1] "74.125.224.38" "74.125.224.38" "129.46.71.19"  "129.46.71.19"
>   [5] "129.46.71.19"  "129.46.71.19"  "129.46.71.19"  "129.46.71.19"
>   [9] "129.46.71.19"  "129.46.71.19"  "129.46.71.19"  "129.46.71.19"
> 
> If I want to find the IP addr that has the highest occurrence (129.46.71.19, in this case), is there a simple way to do this?
> ...

Does this come close?

> tmpInFile <- read.csv("X")
> tmpInFile
   Nr            V2
1   1 74.125.224.38
2   2 74.125.224.38
3   3  129.46.71.19
4   4  129.46.71.19
5   5  129.46.71.19
6   6  129.46.71.19
7   7  129.46.71.19
8   8  129.46.71.19
9   9  129.46.71.19
10 10  129.46.71.19
11 11  129.46.71.19
12 12  129.46.71.19
> table(tmpInFile$V2)

 129.46.71.19 74.125.224.38 
           10             2 
> 

Peace,
david
-- 
David H. Wolfskill				r at catwhisker.org
Depriving a girl or boy of an opportunity for education is evil.

See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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