College Course Gpa Calculator Weighted

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College Course GPA Calculator (Weighted)

Accurately calculate your weighted Grade Point Average (GPA) for college courses.

Weighted GPA Calculator

Enter the name of the course.
Enter the number of credit hours for the course.
Enter the numerical grade point for the course (e.g., 4.0 for A, 3.0 for B).
Standard (1.0x) AP/Honors (1.25x) Advanced Placement (1.5x) IB (1.1x) Pass/Fail (0.5x – if applicable for GPA calc) Select the weight factor for the course type.

Your Weighted GPA Calculation Results

Total Credit Hours Attempted: 0
Total Quality Points: 0.00
Weighted GPA: 0.00
Key assumptions: Standard 4.0 grading scale, specified credit hours, and course weight factors.
Formula Used: Weighted GPA is calculated by summing the product of (Credit Hours * Grade Points * Weight Factor) for each course, and then dividing this sum by the total credit hours attempted across all courses.

Course Contribution to GPA

Visualizing the impact of each course's credit hours, grade points, and weight on your total quality points.

Course Breakdown

Course Name Credit Hours Grade Points Weight Factor Quality Points

Detailed view of each course's input and calculated quality points.

Understanding and Calculating Your Weighted College GPA

{primary_keyword}

A {primary_keyword} is a specialized tool designed to help college students accurately calculate their Grade Point Average (GPA), taking into account the varying levels of difficulty and credit values of their courses. Unlike a simple GPA calculation, a weighted GPA assigns more significance to courses that carry higher credit hours or are designated as more rigorous (like AP, IB, or Honors courses). This calculator allows students to input details for each course they are taking, including the credit hours, the numerical grade points earned, and a specific weight factor for advanced or honors classes. The output provides a precise weighted GPA, offering a more realistic reflection of a student's overall academic achievement.

Who should use it:

  • College students aiming to track their academic progress throughout a semester or academic year.
  • Students applying to graduate programs, scholarships, or internships that require a detailed understanding of academic performance beyond a simple average.
  • High school students in advanced programs (AP, IB, Dual Enrollment) who want to see how these courses impact their overall GPA.
  • Academic advisors and counselors assisting students with academic planning.

Common misconceptions:

  • Misconception: All courses are weighted equally. Reality: Weighted GPAs explicitly account for different credit hours and course rigor.
  • Misconception: A 4.0 GPA is the maximum possible. Reality: While 4.0 is the typical maximum for standard courses, advanced courses might have higher effective grade points due to weighting, potentially leading to GPAs above 4.0 in some weighted systems.
  • Misconception: Grade points and letter grades are the same. Reality: Grade points are the numerical representation (e.g., 4.0 for A) used in GPA calculations, while letter grades are symbolic.

{primary_keyword} Formula and Mathematical Explanation

The core of calculating a weighted GPA lies in understanding how each course's contribution is scaled based on its credit hours and difficulty. The formula ensures that more demanding or credit-intensive courses have a proportionally larger impact on the final GPA.

The formula for calculating the weighted GPA is as follows:

Weighted GPA = Σ (Credit Hours * Grade Points * Weight Factor) / Σ (Credit Hours)

Let's break down the components:

  • Σ (Sigma): This symbol represents summation, meaning you add up the values for all the courses.
  • Credit Hours (CH): This is the number of credits a specific course is worth. More credit hours mean the course contributes more to the GPA.
  • Grade Points (GP): This is the numerical value assigned to the letter grade received in a course. For example, on a standard 4.0 scale: A=4.0, B=3.0, C=2.0, D=1.0, F=0.0.
  • Weight Factor (WF): This factor adjusts the grade points based on the course's rigor. Standard courses typically have a WF of 1.0. Advanced Placement (AP), Honors, or International Baccalaureate (IB) courses often have higher weight factors (e.g., 1.1, 1.25, 1.5).
  • Quality Points (QP): For each course, Quality Points are calculated as CH * GP * WF. This represents the total "value" of the grade in that course, scaled by its weight and credit hours.
  • Total Quality Points: The sum of QP for all courses.
  • Total Credit Hours Attempted: The sum of CH for all courses.

Variable Explanations Table:

Variable Meaning Unit Typical Range
Credit Hours (CH) Academic credits awarded for a course Credits 0.5 – 6 (common college values)
Grade Points (GP) Numerical value of the grade earned Points (on a scale) 0.0 – 4.0 (standard scale)
Weight Factor (WF) Multiplier for advanced/honors courses Unitless 1.0 (standard), 1.1-1.5 (advanced)
Quality Points (QP) CH * GP * WF Points Varies based on inputs
Weighted GPA Overall academic standing Points (on a scale) 0.0 – 4.0+ (depending on weighting)

Practical Examples (Real-World Use Cases)

Let's illustrate how the {primary_keyword} works with practical examples:

Example 1: Standard Semester Load

A student takes the following courses:

  • Introduction to Psychology (3 CH, B grade = 3.0 GP, WF = 1.0)
  • College Algebra (3 CH, A grade = 4.0 GP, WF = 1.0)
  • English Composition I (3 CH, B grade = 3.0 GP, WF = 1.0)

Calculation:

  • Psychology QP: 3 CH * 3.0 GP * 1.0 WF = 9.0 Quality Points
  • Algebra QP: 3 CH * 4.0 GP * 1.0 WF = 12.0 Quality Points
  • English QP: 3 CH * 3.0 GP * 1.0 WF = 9.0 Quality Points

Total Quality Points: 9.0 + 12.0 + 9.0 = 30.0 QP

Total Credit Hours: 3 + 3 + 3 = 9 CH

Weighted GPA: 30.0 QP / 9 CH = 3.33

Interpretation: The student has a weighted GPA of 3.33 for this semester.

Example 2: Including an AP Course

A student is taking a mix of standard and advanced courses:

  • AP Calculus BC (4 CH, A grade = 4.0 GP, WF = 1.5)
  • General Chemistry (4 CH, B grade = 3.0 GP, WF = 1.0)
  • World History (3 CH, A grade = 4.0 GP, WF = 1.0)
  • Art Appreciation (3 CH, C grade = 2.0 GP, WF = 1.0)

Calculation:

  • AP Calculus QP: 4 CH * 4.0 GP * 1.5 WF = 24.0 Quality Points
  • Chemistry QP: 4 CH * 3.0 GP * 1.0 WF = 12.0 Quality Points
  • History QP: 3 CH * 4.0 GP * 1.0 WF = 12.0 Quality Points
  • Art QP: 3 CH * 2.0 GP * 1.0 WF = 6.0 Quality Points

Total Quality Points: 24.0 + 12.0 + 12.0 + 6.0 = 54.0 QP

Total Credit Hours: 4 + 4 + 3 + 3 = 14 CH

Weighted GPA: 54.0 QP / 14 CH = 3.86 (rounded)

Interpretation: The AP Calculus course significantly boosted the student's GPA due to its high weight factor and excellent grade, resulting in a strong overall weighted GPA of 3.86.

How to Use This {primary_keyword} Calculator

Using our interactive calculator is straightforward and designed for ease of use:

  1. Enter Course Details: For each college course you are currently taking or have completed, input the following:
    • Course Name: A descriptive name (e.g., "Organic Chemistry II").
    • Credit Hours: The number of credits the course is worth (e.g., 3, 4).
    • Grade Points: The numerical value corresponding to your grade (e.g., 4.0 for an A, 3.0 for a B). Ensure you are using a consistent scale.
    • Course Weight Factor: Select the appropriate multiplier from the dropdown menu. Use '1.0' for standard courses, and choose the higher values (1.1, 1.25, 1.5) for AP, IB, or Honors courses as defined by your institution.
  2. Add Courses: Click the "Add Course" button after entering the details for each course. The course will appear in the table below, and the intermediate results will update.
  3. Calculate GPA: Once all your courses for the period are entered, click the "Calculate GPA" button.
  4. Review Results: The calculator will display:
    • Total Credit Hours Attempted: The sum of credits for all entered courses.
    • Total Quality Points: The cumulative weighted score.
    • Weighted GPA: The final calculated GPA, prominently displayed.
  5. Interpret the Chart and Table: The bar chart visually represents each course's contribution to your total quality points, while the table provides a detailed breakdown of each course's inputs and calculated quality points.
  6. Copy Results: Use the "Copy Results" button to easily share your calculated data.
  7. Reset: Click "Reset" to clear all entered courses and start over.

Decision-Making Guidance: Use the calculated GPA to understand your academic standing. If the GPA is lower than desired, identify courses with lower grades or standard weight factors. Consider focusing more effort on challenging courses or exploring academic support resources, such as tutoring or study groups, to improve future performance. This tool helps you see the direct impact of course selection and performance on your overall academic record.

Key Factors That Affect {primary_keyword} Results

Several factors significantly influence the outcome of your weighted GPA calculation:

  1. Credit Hours: Courses with more credit hours naturally carry more weight. A B in a 5-credit course impacts your GPA more than a B in a 2-credit course. Maximizing grades in high-credit courses is crucial.
  2. Grade Point Scale: The numerical value assigned to your letter grade is fundamental. A slight difference in grade points (e.g., 3.0 vs. 3.3) can shift the GPA, especially with many credits. Ensure consistency in how you assign grade points.
  3. Weight Factor Implementation: This is the core of "weighted" GPA. AP, IB, and Honors courses often receive bonus points or higher multipliers. A higher weight factor on a course where you achieve a good grade can significantly elevate your GPA. Conversely, a poor grade in a highly weighted course can disproportionately lower it.
  4. Course Rigor vs. Grade Earned: While AP/IB courses offer higher weight factors, they are often more challenging. A high grade (A or B) in a weighted course yields substantial Quality Points. However, a C or D might result in fewer Quality Points than a standard course with the same grade, negating some of the benefit.
  5. Institution's Weighting Policy: Different high schools and colleges have varying policies on how they weight courses. Some might use a flat multiplier (e.g., 1.5x for all AP), while others might have more nuanced systems. Always verify your institution's specific policy.
  6. Pass/Fail or Credit/No Credit Courses: These courses typically do not factor into GPA calculations as they do not assign grade points. However, some institutions might have specific rules or include them in total attempted credits without GPA contribution. Our calculator allows a nominal weight for demonstration if needed.
  7. Consistency in Calculation: Ensuring that the Grade Point scale and Weight Factors used align with official institutional standards is vital for an accurate GPA reflection.

Frequently Asked Questions (FAQ)

Q1: What is the difference between a weighted and unweighted GPA?

An unweighted GPA assigns a standard grade point value (e.g., A=4.0) regardless of course difficulty. A weighted GPA adjusts these values, giving more significance to advanced courses (AP, IB, Honors) by applying a multiplier, thus potentially allowing a GPA above 4.0.

Q2: How do I find the correct Grade Points for my letter grade?

Most institutions provide a grading scale. Typically, A=4.0, B=3.0, C=2.0, D=1.0, F=0.0 for unweighted. Check your school's handbook or academic advisor for the precise scale, especially if plus/minus grades (+/-) are used.

Q3: What is a typical weight factor for AP/IB/Honors courses?

Common weight factors include 1.1 for some IB courses, 1.25 for Honors, and 1.5 for AP courses. However, this varies significantly by school district and university. Always confirm with your institution.

Q4: Can my weighted GPA exceed 4.0?

Yes, it's possible. If you earn A's (4.0 GP) in several heavily weighted courses (e.g., 1.5x multiplier), your calculated weighted GPA can go above 4.0. For instance, a 4.0 GP * 1.5 WF = 6.0 quality points per credit.

Q5: Do Pass/Fail courses affect my GPA?

Generally, Pass/Fail (P/F) or Credit/No Credit (CR/NC) courses do not factor into GPA calculations because they don't assign grade points. However, check your institution's policy, as some may count them towards attempted credits.

Q6: How often should I calculate my weighted GPA?

It's beneficial to calculate your GPA at least once per semester after grades are posted. For students in rigorous programs, calculating it mid-semester can help track progress and identify areas needing improvement.

Q7: Does this calculator handle different grading scales (e.g., 5.0 scale)?

This specific calculator is designed for a standard 4.0 scale. For different scales, you would need to adjust the "Grade Points" input accordingly or use a calculator specifically built for that scale.

Q8: Should I use the GPA calculated here for official purposes?

This calculator provides an estimate for educational and tracking purposes. For official transcripts or applications, always rely on your institution's official records and GPA calculation methods.

© 2023 Your Academic Resource. All rights reserved.

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i++) { courseData.push( courses[i].name + ": " + courses[i].creditHours + " CH, " + courses[i].gradePoints + " GP, " + courses[i].weight + "x Weight, " + courses[i].qualityPoints.toFixed(2) + " QP" ); } var textToCopy = "Weighted GPA Calculation Results:\n\n" + "Total Credit Hours Attempted: " + totalCreditHours + "\n" + "Total Quality Points: " + totalQualityPoints + "\n" + "Weighted GPA: " + weightedGpa + "\n\n" + "Course Breakdown:\n" + courseData.join("\n"); // Use a temporary textarea to copy the text var textArea = document.createElement("textarea"); textArea.value = textToCopy; textArea.style.position = "fixed"; // Avoid scrolling to bottom textArea.style.left = "-9999px"; textArea.style.top = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 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This shows the adjusted grade value. data: courses.map(function(c) { return c.qualityPoints / c.creditHours; }), backgroundColor: 'rgba(40, 167, 69, 0.6)', // Success color variant borderColor: 'rgba(40, 167, 69, 1)', borderWidth: 1 } ] }; gpaChartInstance = new Chart(ctx, { type: 'bar', data: chartData, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Value' } }, x: { title: { display: true, text: 'Course' } } }, plugins: { legend: { position: 'top', }, title: { display: true, text: 'Course Contribution Breakdown' } } } }); } function renderChartPlaceholder() { if (!gpaChartCanvas) return; var ctx = gpaChartCanvas.getContext('2d'); ctx.clearRect(0, 0, gpaChartCanvas.width, gpaChartCanvas.height); // Clear canvas ctx.font = "16px Arial"; ctx.fillStyle = "#6c757d"; ctx.textAlign = "center"; ctx.fillText("Add courses to see the chart.", gpaChartCanvas.width / 2, gpaChartCanvas.height / 2); } function initializeChart() { if (gpaChartCanvas) { renderChartPlaceholder(); // Show initial placeholder message } } // Initial setup window.onload = function() { initializeChart(); // Load initial default values or clear them resetCalculator(); }; // Ensure Chart.js is loaded if it's used. Since we're using native canvas, we don't need Chart.js. // If Chart.js were required: // var script = document.createElement('script'); // script.src = 'https://cdn.jsdelivr.net/npm/chart.js'; // script.onload = function() { initializeChart(); }; // document.head.appendChild(script); // For this requirement, we are asked to use native canvas or pure SVG. I'll proceed with native canvas. // The provided solution uses native canvas, but Chart.js is a library. // To strictly adhere to "NO external chart libraries", I need to draw manually or use SVG. // Let's switch to SVG for a pure solution. // — REPLACING CHART LOGIC WITH PURE SVG — // Remove the canvas element and replace with SVG placeholder // In the HTML, replace with
// Adjust updateChart and initializeChart functions for SVG function updateChartSVG() { var svgContainer = document.getElementById('chartSvgContainer'); if (!svgContainer) return; svgContainer.innerHTML = "; // Clear previous SVG content if (courses.length === 0) { svgContainer.innerHTML = 'Add courses to see the chart.'; return; } var svgNS = "http://www.w3.org/2000/svg"; var svgWidth = 700; var svgHeight = 400; var margin = { top: 50, right: 30, bottom: 100, left: 60 }; var chartWidth = svgWidth – margin.left – margin.right; var chartHeight = svgHeight – margin.top – margin.bottom; var svg = document.createElementNS(svgNS, "svg"); svg.setAttribute("width", svgWidth); svg.setAttribute("height", svgHeight); svg.setAttribute("viewBox", "0 0 " + svgWidth + " " + svgHeight); svg.setAttribute("style", "max-width: 100%; height: auto;"); var chartGroup = document.createElementNS(svgNS, "g"); chartGroup.setAttribute("transform", "translate(" + margin.left + "," + margin.top + ")"); svg.appendChild(chartGroup); // Scales var xScale = d3.scaleBand() // Using D3 for scales, but drawing SVG manually .domain(courses.map(function(d) { return d.name; })) .range([0, chartWidth]) .padding(0.2); var maxQP = Math.max(…courses.map(function(d) { return d.qualityPoints; })) || 1; var maxYValue = maxQP * 1.1; // Add some buffer var yScale = d3.scaleLinear() .domain([0, maxYValue]) .range([chartHeight, 0]); // Axes var xAxisGroup = document.createElementNS(svgNS, "g"); xAxisGroup.setAttribute("transform", "translate(0," + chartHeight + ")"); d3.select(xAxisGroup).call(d3.axisBottom(xScale)); chartGroup.appendChild(xAxisGroup); // Rotate X-axis labels d3.select(xAxisGroup).selectAll("text") .attr("transform", "rotate(-45)") .style("text-anchor", "end") .style("font-size", "10px"); var yAxisGroup = document.createElementNS(svgNS, "g"); d3.select(yAxisGroup).call(d3.axisLeft(yScale).ticks(5)); // Limit ticks for clarity chartGroup.appendChild(yAxisGroup); // Y-axis Label var yAxisLabel = document.createElementNS(svgNS, "text"); yAxisLabel.setAttribute("transform", "rotate(-90)"); yAxisLabel.setAttribute("y", 0 – margin.left); yAxisLabel.setAttribute("x", 0 – (chartHeight / 2)); yAxisLabel.setAttribute("dy", "1em"); yAxisLabel.style.textAnchor = "middle"; yAxisLabel.style.fontSize = "12px"; yAxisLabel.textContent = "Quality Points"; svg.appendChild(yAxisLabel); // Title var title = document.createElementNS(svgNS, "text"); title.setAttribute("x", svgWidth / 2); title.setAttribute("y", margin.top / 2); title.style.textAnchor = "middle"; title.style.fontSize = "16px"; title.style.fontWeight = "bold"; title.style.fill = "var(–primary-color)"; title.textContent = "Course Quality Points Contribution"; svg.appendChild(title); // Bars for Quality Points courses.forEach(function(course, i) { var barHeight = chartHeight – yScale(course.qualityPoints); var bar = document.createElementNS(svgNS, "rect"); bar.setAttribute("x", xScale(course.name)); bar.setAttribute("y", chartHeight – barHeight); bar.setAttribute("width", xScale.bandwidth()); bar.setAttribute("height", barHeight); bar.setAttribute("fill", "rgba(0, 74, 153, 0.6)"); // Primary color variant bar.setAttribute("data-course", course.name); // Store data for potential tooltips // Add tooltip functionality (basic) bar.onmouseover = function(event) { var tooltip = document.getElementById('svgTooltip'); if (!tooltip) { tooltip = document.createElement('div'); tooltip.id = 'svgTooltip'; tooltip.style.cssText = 'position: absolute; background-color: rgba(0,0,0,0.7); color: white; padding: 5px 10px; border-radius: 4px; font-size: 12px; pointer-events: none;'; document.body.appendChild(tooltip); } tooltip.innerHTML = course.name + "QP: " + course.qualityPoints.toFixed(2); tooltip.style.display = 'block'; // Position tooltip near the mouse tooltip.style.left = (event.pageX + 15) + 'px'; tooltip.style.top = (event.pageY – 25) + 'px'; }; bar.onmouseout = function() { var tooltip = document.getElementById('svgTooltip'); if (tooltip) tooltip.style.display = 'none'; }; bar.onmousemove = function(event) { // Update position as mouse moves var tooltip = document.getElementById('svgTooltip'); if (tooltip) { tooltip.style.left = (event.pageX + 15) + 'px'; tooltip.style.top = (event.pageY – 25) + 'px'; } }; chartGroup.appendChild(bar); }); // Add a legend – simple text for now var legend1 = document.createElementNS(svgNS, "text"); legend1.setAttribute("x", margin.left); legend1.setAttribute("y", margin.top – 30); legend1.style.fontSize = "12px"; legend1.innerHTML = '■ Quality Points'; svg.appendChild(legend1); // If adding a second dataset (e.g., Weighted Grade Points per credit) var legend2 = document.createElementNS(svgNS, "text"); legend2.setAttribute("x", margin.left + 150); // Position next to first legend item legend2.setAttribute("y", margin.top – 30); legend2.style.fontSize = "12px"; legend2.innerHTML = '■ Weighted Grade Pts/Credit'; svg.appendChild(legend2); svgContainer.appendChild(svg); } function initializeChartSVG() { var svgContainer = document.getElementById('chartSvgContainer'); if (!svgContainer) return; svgContainer.innerHTML = 'Add courses to see the chart.'; } // Replace calls to updateChart() with updateChartSVG() and initializeChart() with initializeChartSVG() // And adjust HTML: remove canvas, add div for SVG // — END SVG REPLACEMENT — // Updated functions to use SVG function updateChart() { // Renamed from updateChartSVG for consistency in calls updateChartSVG(); } function initializeChart() { // Renamed from initializeChartSVG initializeChartSVG(); } // Need to include D3 for scales if using it. Let's try to avoid external dependencies altogether. // Manually calculating scales and drawing for pure SVG without D3. function updateChartPureSVG() { var svgContainer = document.getElementById('chartSvgContainer'); if (!svgContainer) return; svgContainer.innerHTML = "; // Clear previous SVG content if (courses.length === 0) { svgContainer.innerHTML = 'Add courses to see the chart.'; return; } var svgNS = "http://www.w3.org/2000/svg"; var svgWidth = 700; var svgHeight = 400; var margin = { top: 50, right: 30, bottom: 100, left: 60 }; var chartWidth = svgWidth – margin.left – margin.right; var chartHeight = svgHeight – margin.top – margin.bottom; var svg = document.createElementNS(svgNS, "svg"); svg.setAttribute("width", svgWidth); svg.setAttribute("height", svgHeight); svg.setAttribute("viewBox", "0 0 " + svgWidth + " " + svgHeight); svg.setAttribute("style", "max-width: 100%; height: auto;"); var chartGroup = document.createElementNS(svgNS, "g"); chartGroup.setAttribute("transform", "translate(" + margin.left + "," + margin.top + ")"); svg.appendChild(chartGroup); // — Manual Scale Calculation — var courseNames = courses.map(function(d) { return d.name; }); var bandwidth = chartWidth / courses.length * 0.7; // Allocate 70% of space for bars, adjust padding var padding = chartWidth / courses.length * 0.3 / 2; var xScale = function(index) { return index * (bandwidth + 2 * padding); }; var maxQP = Math.max(0, …courses.map(function(d) { return d.qualityPoints; })); var maxWGPPC = Math.max(0, …courses.map(function(d) { return d.creditHours > 0 ? d.qualityPoints / d.creditHours : 0; })); var maxYValue = Math.max(maxQP, maxWGPPC) * 1.1 || 1; var yScale = function(value) { return chartHeight – (value / maxYValue) * chartHeight; }; var getYAxisValue = function(value) { return (value / maxYValue) * chartHeight; } // — End Manual Scale Calculation — // Axes (manual drawing) // X-axis line var xAxisLine = document.createElementNS(svgNS, "line"); xAxisLine.setAttribute("x1", 0); xAxisLine.setAttribute("x2", chartWidth); xAxisLine.setAttribute("y1", chartHeight); xAxisLine.setAttribute("y2", chartHeight); xAxisLine.setAttribute("stroke", "#ccc"); chartGroup.appendChild(xAxisLine); // X-axis labels and ticks courses.forEach(function(course, i) { var xPos = xScale(i) + bandwidth / 2; var tick = document.createElementNS(svgNS, "line"); tick.setAttribute("x1", xPos); tick.setAttribute("x2", xPos); tick.setAttribute("y1", chartHeight); tick.setAttribute("y2", chartHeight + 5); tick.setAttribute("stroke", "#ccc"); chartGroup.appendChild(tick); var label = document.createElementNS(svgNS, "text"); label.setAttribute("x", xPos); label.setAttribute("y", chartHeight + 20); // Adjust for rotation label.setAttribute("dy", ".71em"); // Vertical alignment adjustment label.setAttribute("text-anchor", "middle"); label.setAttribute("transform", "rotate(-45, " + xPos + ", " + (chartHeight + 20) + ")"); label.style.fontSize = "10px"; label.textContent = course.name; chartGroup.appendChild(label); }); // Y-axis line var yAxisLine = document.createElementNS(svgNS, "line"); yAxisLine.setAttribute("x1", 0); yAxisLine.setAttribute("x2", 0); yAxisLine.setAttribute("y1", 0); yAxisLine.setAttribute("y2", chartHeight); yAxisLine.setAttribute("stroke", "#ccc"); chartGroup.appendChild(yAxisLine); // Y-axis labels and ticks var numYTicks = 5; for (var i = 0; i <= numYTicks; i++) { var yPos = chartHeight – (i / numYTicks) * chartHeight; var value = (i / numTicks) * maxYValue; var tick = document.createElementNS(svgNS, "line"); tick.setAttribute("x1", -5); tick.setAttribute("x2", 0); tick.setAttribute("y1", yPos); tick.setAttribute("y2", yPos); tick.setAttribute("stroke", "#ccc"); chartGroup.appendChild(tick); var label = document.createElementNS(svgNS, "text"); label.setAttribute("x", -10); label.setAttribute("y", yPos); label.setAttribute("dy", ".35em"); label.setAttribute("text-anchor", "end"); label.style.fontSize = "11px"; label.textContent = value.toFixed(1); chartGroup.appendChild(label); } // Title var title = document.createElementNS(svgNS, "text"); title.setAttribute("x", svgWidth / 2); title.setAttribute("y", margin.top / 2); title.style.textAnchor = "middle"; title.style.fontSize = "16px"; title.style.fontWeight = "bold"; title.style.fill = "var(–primary-color)"; title.textContent = "Course Contribution Breakdown"; svg.appendChild(title); // Bars for Quality Points courses.forEach(function(course, i) { var barHeight = chartHeight – yScale(course.qualityPoints); var bar = document.createElementNS(svgNS, "rect"); bar.setAttribute("x", xScale(i)); bar.setAttribute("y", chartHeight – barHeight); bar.setAttribute("width", bandwidth); bar.setAttribute("height", barHeight); bar.setAttribute("fill", "rgba(0, 74, 153, 0.6)"); // Primary color variant // Add tooltip functionality (basic) bar.onmouseover = function(event) { var tooltip = document.getElementById('svgTooltip'); if (!tooltip) { tooltip = document.createElement('div'); tooltip.id = 'svgTooltip'; tooltip.style.cssText = 'position: absolute; background-color: rgba(0,0,0,0.7); color: white; padding: 5px 10px; border-radius: 4px; font-size: 12px; pointer-events: none; z-index: 1000;'; document.body.appendChild(tooltip); } tooltip.innerHTML = course.name + "QP: " + course.qualityPoints.toFixed(2); tooltip.style.display = 'block'; }; bar.onmouseout = function() { var tooltip = document.getElementById('svgTooltip'); if (tooltip) tooltip.style.display = 'none'; }; bar.onmousemove = function(event) { var tooltip = document.getElementById('svgTooltip'); if (tooltip) { tooltip.style.left = (event.pageX + 15) + 'px'; tooltip.style.top = (event.pageY – 25) + 'px'; } }; chartGroup.appendChild(bar); }); // Legend – simple text for now var legend1 = document.createElementNS(svgNS, "text"); legend1.setAttribute("x", margin.left); legend1.setAttribute("y", margin.top – 30); legend1.style.fontSize = "12px"; legend1.innerHTML = '■ Quality Points'; svg.appendChild(legend1); // If adding a second dataset (Weighted Grade Points per credit) var weightedGradePointsPerCredit = courses.map(function(c) { return c.creditHours > 0 ? c.qualityPoints / c.creditHours : 0; }); var maxWGPPC = Math.max(0, …weightedGradePointsPerCredit); courses.forEach(function(course, i) { var wgpccValue = weightedGradePointsPerCredit[i]; if (wgpccValue > 0) { var barHeight = chartHeight – yScale(wgpccValue); // Use the same yScale, but with adjusted maxYValue var bar = document.createElementNS(svgNS, "rect"); bar.setAttribute("x", xScale(i) + bandwidth); // Offset bars slightly bar.setAttribute("y", chartHeight – barHeight); bar.setAttribute("width", bandwidth); bar.setAttribute("height", barHeight); bar.setAttribute("fill", "rgba(40, 167, 69, 0.6)"); // Success color variant bar.onmouseover = function(event) { var tooltip = document.getElementById('svgTooltip'); if (!tooltip) { tooltip = document.createElement('div'); tooltip.id = 'svgTooltip'; tooltip.style.cssText = 'position: absolute; background-color: rgba(0,0,0,0.7); color: white; padding: 5px 10px; border-radius: 4px; font-size: 12px; pointer-events: none; z-index: 1000;'; document.body.appendChild(tooltip); } tooltip.innerHTML = course.name + "Wtd GP/Credit: " + wgpccValue.toFixed(2); tooltip.style.display = 'block'; }; bar.onmouseout = function() { var tooltip = document.getElementById('svgTooltip'); if (tooltip) tooltip.style.display = 'none'; }; bar.onmousemove = function(event) { var tooltip = document.getElementById('svgTooltip'); if (tooltip) { tooltip.style.left = (event.pageX + 15) + 'px'; tooltip.style.top = (event.pageY – 25) + 'px'; } }; chartGroup.appendChild(bar); } }); var legend2 = document.createElementNS(svgNS, "text"); legend2.setAttribute("x", margin.left + 150); // Position next to first legend item legend2.setAttribute("y", margin.top – 30); legend2.style.fontSize = "12px"; legend2.innerHTML = '■ Wtd GP/Credit'; svg.appendChild(legend2); svgContainer.appendChild(svg); } function initializeChartPureSVG() { var svgContainer = document.getElementById('chartSvgContainer'); if (!svgContainer) return; svgContainer.innerHTML = 'Add courses to see the chart.'; } // Update the main script calls // Replace `updateChart()` with `updateChartPureSVG()` // Replace `initializeChart()` with `initializeChartPureSVG()` // And in HTML, replace with
// Final check on HTML structure for SVG // The container should be
// Re-assigning the functions updateChart = updateChartPureSVG; initializeChart = initializeChartPureSVG; // Ensure the HTML has the correct container for the SVG // In the HTML, replace the canvas tag with: //
// This will replace the canvas element. // Final check: global vars, var only, no const/let/arrow, inline onclick. // Looks good. // Placeholder for D3.js if it were needed for scales, but we are doing manual SVG drawing. // If D3 was required: // var script = document.createElement('script'); // script.src = 'https://d3js.org/d3.v7.min.js'; // Example D3 path // script.onload = function() { // // Initialize chart using D3 scales here // }; // document.head.appendChild(script);

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