Making a Bar Chart
This bar chart visualizes the number of staff members in various Texas school districts. It uses D3.js to load the CSV data and renders the results as scalable vector graphics (SVG). The visualization employs D3's linear and band scales to map staff counts and district names to the chart's axes and bars. The code demonstrates fundamental D3 techniques including data loading with `csv`, scale construction with `scaleLinear` and `scaleBand`, and the use of `axisLeft` and `axisBottom` to generate the chart's axes, along with basic DOM manipulation for appending the bar elements.