50 lines
1.0 KiB
JavaScript
50 lines
1.0 KiB
JavaScript
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// NOTE: SHEET IS UNDER BERKELEY ACC
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/**
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* Calculate GPA given grades & units
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* @param {*} grades Grades column
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* @param {*} units Class units (weights) column
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*/
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function GRADEPOINTS(grades, units) {
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if (grades.length != units.length) {
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throw Error("Grades & Units columns must have the same length")
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}
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else if (grades[0].length != 1 || units[0].length != 1) {
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throw Error("Grades & Units each must be single columns")
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}
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let gradeMap = {
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"A+": 4.0,
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"A": 4.0,
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"A-": 3.7,
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"B+": 3.3,
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"B": 3,
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"B-": 2.7,
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"C+": 2.3,
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"C": 2.0,
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"C-": 1.7,
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"D+": 1.3,
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"D": 1,
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"D-": 0.7,
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"F": 0.0,
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}
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let gpSum = 0;
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let denom = 0;
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for (let i = 0; i < grades.length; i++) {
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let grade = grades[i][0];
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let unitCount = units[i][0]
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if (Object.keys(gradeMap).includes(grade)) {
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gpSum += gradeMap[grade] * unitCount;
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denom += unitCount;
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}
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}
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if (denom == 0) {
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throw Error("No valid values found in grades col")
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}
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return gpSum / denom;
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}
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