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Type Horror
Published
Edited
Sep 21, 2020
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d3 = require('d3@5')
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healthy_ratio = 100 - infected_ratio
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fnr = 100 - tpr // the false negative rate is the opposite of the true positive rate
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fpr = 100 - tnr // the false positive rate is the opposite of the true negative rate
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positive_count = true_positive_count + false_positive_count
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negative_count = true_negative_count + false_negative_count
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infected_count = sample_size * (infected_ratio / 100)
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healthy_count = sample_size * (healthy_ratio / 100)
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true_positive_count = infected_count * (tpr / 100)
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false_negative_count = infected_count * (fnr / 100)
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true_negative_count = healthy_count * (tnr / 100)
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false_positive_count = healthy_count * (fpr / 100)
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function round(value, precision) {
precision = precision || 0;
return Math.round(value * Math.pow(10, precision)) / Math.pow(10, precision);
}
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positive_rate = (tpr / 100) * (infected_ratio / 100) +
(fpr / 100) * (healthy_ratio / 100)
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infected_positive_rate = ((tpr / 100) * (infected_ratio / 100)) / positive_rate
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