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  4. Correlation and Regression Lines - A Quick Recap #2
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Correlation and Regression Lines - A Quick Recap #2

  • karthik_ark4
     + 1 comment

    The following code must work but I think the env under the submit is faulty and doesn't let anything but simple print statements to run.

    def get_coeff(x,y):
    x_avg = sum(x)/x.__len__()
    y_avg = sum(y)/y.__len__()
    numerator = sum([(a - x_avg)*(b-y_avg) for a,b in zip(x,y)])
    denominator = sum([(a - x_avg)**2 for a in x])
    return round(numerator/denominator, 3)

if __name__ == '__main__':
    feature_1 = "Physics Scores  15  12  8   8   7   7   7   6   5   3"
    feature_2 = "History Scores  10  25  17  11  13  17  20  13  9   15"
    feature_1 = [int(x) for x in input().split() if x.isnumeric()]
    feature_2 = [int(x) for x in input().split() if x.isnumeric()]
    print(str(get_coeff(feature_1,feature_2)))