bayes_algorithm_solutions/bayes_solution.html at main · matthew-renodin/bayes_algorithm_solutions · GitHub

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<html>
<body>

<h1>perform calculation for Naive Bayes Theorem</h1>

<script>
// if using one array remove all occurences of (B|A) in common // then compute number of B in common

function mr_bayes(total_size, B_num, A_num, B_in_common)
{
  const p_B_A = B_num/A_num;
  const p_A = A_num/total_size;
  const numerator = p_B_A * p_A;
  const common_num =  total_size - A_num;
  const p_B_common = B_in_common/common_num;
  const p_common = 1-p_A;
  const denominator = numerator+(p_B_common * p_common);
  const bayes_factor = numerator/denominator;
  const pp = p_B_A * bayes_factor;

  return pp;
}


document.write("<h3>row1:</h3>" + mr_bayes(1000,1,3,0));

document.write("<h3>row2:</h3>" + mr_bayes(615,2,3,1));

document.write("<h3>row3:</h3>" + mr_bayes(100000,98,100,5000));


</script>

</body>
</html>