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There are three popular metrics to measure the correlation between two random variables: Pearson's correlation coefficient, Kendall's tau and Spearman 阅读全文
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For Loop ls = [1, 2, 3, 4] for i in ls: print (i) Enumerate Method ls = [1, 2, 3, 4] for i, j in enumerate(ls): print(i, j) Out: 0 1 1 2 2 3 3 4 List 阅读全文
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1. Combine Two Series series1=pd.Series([1,2,3],name='s1') series2=pd.Series([4,5,6],name='s2') df = pd.concat([series1, series2], axis=1) Out: series 阅读全文
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This is the second part of A/B testing notes, which contains the practical issues and alternatives of A/B testing. The fundamental introduction of A/B 阅读全文
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I learned A/B testing from a Youtube vedio. The link is https://www.youtube.com/watch?v=Bu7OqjYk0jM. I will divide the note into two parts. The first 阅读全文
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Case Study The case study Physicians' Reactions sought to determine whether physicians spend less time with obese patients. Physicians were sampled ra 阅读全文