On 2010-02-19 18:29 PM, Aahz wrote:
On Fri, Feb 19, 2010, Mark Livingstone wrote:
I am looking for suggestions! I am doing some experimentation and want
to know if there are any utilities available that will take a file as
input, get the num folds and num times, and do the slice and dice file
operation ready then for training / testing?
You will need to expand your jargon if you want anyone unfamiliar with
this specific operation to provide assistance. (I.e. I have no clue what
you're talking about.)
It's really off-topic for this list, but K-fold cross-validation is a way of
testing how well some prediction method will perform. Roughly, you split up the
data into K chunks. You use K-1 chunks to train your method and test on the
remaining chunk. You then repeat this K times with each chunk playing the role
of the test chunk exactly once. Then you average the performance of your
prediction method over each of the K tests.
Mark, I recommend that you join the scipy-users mailing list. We'll be happy to
field your data analysis questions over there. These kinds of questions really
are unrelated to the Apple platform even if you intend to do the analysis on an
Apple machine.
http://www.scipy.org/Mailing_Lists
You may also want to check the SpamBayes project. Their validation framework
might be applicable to your problem set.
http://spambayes.sourceforge.net/
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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