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Re: predict
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From: |
pathematica |
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Subject: |
Re: predict |
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Date: |
Wed, 16 Nov 2011 03:25:50 -0800 (PST) |
Denoting the matrix that follows from applying your custom sigmoid function
to the matrix product (suitably debugged for conformity) by A, I think the
following will achieve your goal (brackets not required; included for
clarity):
p = (A >= 0.5);
so, your custom predict function (with appropriate transpositions to achieve
conformity for the matrix product in the sigmoid function) might be written
in one line as (outer brackets included for clarity):
p = ( sigmoid(theta' * x') >= 0.5 );
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