37b54afef51c7430f8fa00db2f07e3532a7408da,dit/distribution.py,BaseDistribution,zipped,#BaseDistribution#Any#,661

Before Change

            nonnull events only.

        
        if null:
            // Then we really want to iterate over the sample space.
            //
            // There are many ways to do this, but we need to do it in a way
            // that does not rely on the particular implementation"s storage
            // mechanism.  Here is one way.
            //
            outcomes = list(self.sample_space())
            zero = self.ops.zero
            probs = [zero] * len(outcomes)

            _outcomes = self.outcomes
            _pmf = self.pmf
            i, j = 0, 0
            while j < len(_pmf):
                if outcomes[i] == _outcomes[j]:
                    probs[i] = _pmf[j]
                    j += 1
                i += 1
        else:
            outcomes = self.outcomes
            probs = self.pmf

        return izip(outcomes, probs)

After Change

            raise ditException("Invalid mode.")

        if mode == "pmf":
            for x in izip(self.outcomes, self.pmf):
                yield x
        elif mode == "atoms":
            // Then we want to iterate over the sample space.
            //
            // There are many ways to do this, but we need to do it in a way

Instances