“Make a heatmap of Cedar Warehouse daily picking errors by aisle, showing Monday to Friday rows and Aisles A through E columns.”
図の背後にある意思決定を読み解く。
Use one reporting period and one clear unit.
Identify the largest concentration or directional change.
Confirm the displayed values against the underlying data.
Use this heatmap when the stated values and labels are the information the reader needs to compare.
よくある質問
What does this heatmap show?
A heatmap uses colour to show the size of a value at the intersection of two categories. It helps readers spot concentrations, gaps and repeated patterns quickly.
How should I read this heatmap?
Choose a colour scale whose minimum and maximum match the data, and include cell labels when precise values matter to the decision.
Can I adapt this heatmap example?
Yes. Replace the title, labels and values with your own data, then check that the prompt still describes every important element in the chart.