On Mar 17, 2011, at 6:06 PM, 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?
Try:
> vec <- c(
+ "74.125.224.38", "74.125.224.38", "129.46.71.19", "129.46.71.19",
+ "129.46.71.19", "129.46.71.19", "129.46.71.19", "129.46.71.19",
+ "129.46.71.19", "129.46.71.19", "129.46.71.19", "129.46.71.19")
> table(vec)
vec
129.46.71.19 74.125.224.38
10 2
> which.max(table(vec))
129.46.71.19
1
> table(vec)[which.max(table(vec))]
129.46.71.19
10
Thanks
Shank
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