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simul
2013 Aug 30
0
ddply for comparing simulation results
...0, 2013 at 5:10 AM, jim holtman <jholtman at gmail.com> wrote:
>>
>> try the 'data.table package. It gives the answer in less than a second.
>>
>> > # 1 million leads, half of which were simulated, half of which were not
>> > id=1:1000000
>> > isSimulated = c(rep(0,500000), rep(1, 500000))
>> > userId=sample(1:100000, 1000000, replace=T)
>> > df_leads=data.frame(id, isSimulated, userId)
>> > require(data.table)
>> Loading required package: data.table
>> data.table 1.8.8 For help type: help("data.table...