normalization operator

Is there an operator to transform values to a mean set to zero and confine the range to be within -1 to 1?

I've tried the GaussAttributeGeneration, but it doesn't give any spread; all values come out 0.  Is this the way it was intended to be used?

    <operator name="GaussAttributeGeneration" class="GaussAttributeGeneration" breakpoints="after">
        <parameter key="attribute_name" value="BMI"/>
    </operator>

Thanks!