fresh block
This example displays the relative frequencies of English letters as a horizontal bar chart, using data from a CSV file. The bars are sorted ascending by frequency and rendered as SVG rectangles with a blue fill, with hover effects changing their color. The visualization uses d3.csv to load the data, d3.scaleBand for the categorical y-axis, d3.scaleLinear for the numeric x-axis, and d3.axisTop and d3.axisLeft for the axes, with the x-axis formatted as percentages.