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están
2007 Apr 20
2
Fastest way to repeatedly subset a data frame?
...s very, very slow. For a dataset of 62,000 rows and 253 list
entries, it takes probably 5 minutes on a pentium D. An implementation
of this kind of subsetting using hashtables in C# takes a neglible
amount of time.
I am open to any suggestions about data format, methods, anything.
Thanks,
Iestyn Lewis
Emory University