# remove time from column
return(as.data.frame(pivot))
}
On Apr 25, 2010, at 11:07 PM, David Winsemius wrote:
>
> On Apr 25, 2010, at 10:15 PM, robert lee wrote:
>
>> I have two data frames ( x and y -- sample values below). The rows have
>> HH:MM:SS and columns have names
I have two data frames ( x and y -- sample values below). The rows have
HH:MM:SS and columns have names of devices.
I am trying to find a list of 5 least used devices during recorded time period.
When apply function is used to sum on the column, I get the correct answer on
data frame called x
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