distance between custom factors - range or something else?

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distance between custom factors - range or something else?

posted Jan 20, 2019

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I'm trying to calculate the distance from custom factor x to custom factor y.

My problem is: sometimes it will be a positive number to a negative and other times a negative to a positive.

If custom factor x is -10 and custom factor y is +10, I would want the output to be +20

If custom factor x is +10 and custom factor y is -10, I would want the output to be -20.

I am dealing with decimals.

Here's what I've tried with no luck:

class DiffInEroc2(CustomFactor):  
        inputs = [it24up11619.eroc]  
        window_length = 12  
        def compute(self, today, asset_ids, out, eroc):  
            out[:] = eroc[-12]  
    class DiffInEroc1(CustomFactor):  
        inputs = [it24up11619.eroc]  
        window_length = 1  
        def compute(self, today, asset_ids, out, eroc):  
            out[:] = eroc[-1]   

    eroc1 = DiffInEroc1()  
    eroc2 = DiffInEroc2()  
    erocrange = range(eroc1, eroc2, .0001)

1 response

So I think there's a way to do this with growth_score but not sure how to mix it with my upload that is also a custom factor. Perhaps I'm thinking about this the wrong way....thanks.

class ChangeInGrowthScore(CustomFactor):
inputs = [Fundamentals.growth_score]
window_length=252
def compute(self, today, asset_ids, out, growth):
out[:] = growth[-1] - growth[0]

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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian.

In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.