About the Authors

Kawee Numpacharoen


Affiliations Financial Product Development, Kasikorn Securities, Bangkok, Thailand, Department of Mathematics, Faculty of Science, Mahidol University, Bangkok, Thailand

Amporn Atsawarungruangkit

Affiliation College of Medicine, Rangsit University, Bangkok, Thailand

Competing Interests

One of the authors (KN) is a paid employee with Kasikorn Securities. This does not alter the authors' adherence to the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: KN AA. Performed the experiments: KN. Analyzed the data: KN AA. Contributed reagents/materials/analysis tools: KN AA. Wrote the paper: KN AA.