Tweets scatter
This scatter plot visualizes tweets from a CSV dataset, mapping the number of characters against the number of words in each tweet’s text. Each point is colored by the inferred gender of the tweet’s author, and hovering enlarges a point and displays the full tweet content in a tooltip. Clicking a legend entry filters the view by dimming points of other genders. The visualization is built with D3.js, using `d3.dsv` to parse the semicolon-delimited data, `d3.scale.linear` for axes, and SVG circles for the dots. Interactive transitions are handled through D3’s `.transition()` API.