ynouri / pysabr

SABR model Python implementation
MIT License
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Enquiry about the scaling when fitting SABR #11

Open bradleyboyuyang opened 4 months ago

bradleyboyuyang commented 4 months ago

Great project ynouri! I am really thankful since this project helped me a lot with my final project.

I have a quick question. I saw you multiply the lognormal vol by 100 and normal vol by 10000 in the "fit" function so that the input parameter v_sln also needs to be scaled. Is there a particular reason to do that?

Thanks again for the wonderful project.