Heatmap

heatmap Pirate Activity by Sea Region
columns Jan, Feb, Mar, Apr, May, Jun

Caribbean 5 4 5 3 4 5
Atlantic 2 3 2 4 3 2
Mediterranean 3 2 1 2 3 4
Indian Ocean 4 5 4 5 4 3
South China Sea 1 2 3 2 1 2
West Africa 3 3 4 3 5 4

Syntax

heatmap Chart Title
columns Col1, Col2, Col3

Row Label value1 value2 value3

Metadata Keys

Data Format

Each data line defines a row with space-separated values matching the column count:

Caribbean 5 4 5 3 4 5
Atlantic 2 3 2 4 3 2

The row label becomes the Y axis label. Cell colors are scaled automatically based on value range.