Choose the right chart for a dataset before drawing anything: read the data shape and the analytical intent, look up the selection lexicon, compare two or three candidate chart types with their trade-offs, and emit a drawing spec covering axes, legend, annotations, and number formatting. Use when the user asks to what chart should this data use / how do I choose a chart type / help me pick a chart / is this pie chart appropriate / how best to visualize this data / which chart should I use / help me pick a visualization / is a pie chart ok here / data visualization / charts / matplotlib / D3 / reporting / dashboard. Do NOT use for actually building a dashboard file (use da…