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nalimilan/freqtable

Last active April 22, 2016 14:52
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freqtable
using DataFrames,DataFramesMeta, FreqTables
n=1000_000
y=ASCIIString[string("id",i) for i in rand(1:10,n)];
x=rand(1:10,n);
@time pda=PooledDataArray(y,UInt8);
@time f=freqtable(x);
@time f=freqtable(y);
@time f=freqtable(pda);
@time f=freqtable(x, pda);
d=DataFrame(x=P(x),y=P(y),pda=pda);
@time @by(d, :x, N=length(:x));
@time @by(d, :y, N=length(:x));
@time @by(d, :pda, N=length(:x));
@time @by(d, (:x, :pda), N=length(:x));
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