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In python 3 and without Union() or Intersection() methods!~ The Jaccard index is a measure of...

In python 3 and without Union() or Intersection() methods!~

The Jaccard index is a measure of similarity between two sets, computed as the size of the intersection of the sets divided by the size of the union of the sets. In other words, the Jaccard index of two sets A and B can be calculated as:
Write a function called jaccard that computes the Jaccard index for two argument lists. You can assume that the lists will contain only integer values. Note: don’t forget that only unique elements should be counted in the above equation, any duplicate elements should be ignored.
COMP 1005/1405 Summer 2017 Final Exam June 24th, 2-5pm
3
Examples:
A = [1, 2, 3, 4, 5] B = [2, 4, 6, 8]

intersection(A,B) > [2, 4]

union(A,B) > [1, 2, 3, 4, 5, 6, 8]

jaccard(A,B) > 2 / 7 > 0.2857

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Answer #1

Though you have mentioned to write only the 'jaccard' function I have also created two separate functions for finding intersection and union. I have used examples as inputs again you can change it for your convenience.

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