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Total Subscriber of Each Subject
A horizontal bar chart displays the total number of Udemy course subscribers aggregated by subject, highlighting Web Development as the most popular. The visualization uses React with D3 v5, employing `d3.nest()` and `d3.sum()` to roll up subscriber counts from a CSV dataset, with an SVG rendered via D3’s `scaleBand` and `scaleLinear` mappings, axes, and tooltips.
AI-generated descriptionA program that shows the total subscriber of each subject.
From this graph, we can see that the subscribers of the Web Development subject is the most.
Data: Udemy Courses.