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heatmap

Heatmap visualization with row/column labels.

h = heatmap(C)
h = heatmap(T)
h = heatmap(C, xlabels, ylabels, ...)

Renders a heatmap of matrix C (or table T). Cells are colored according to value; row and column labels appear on the axes. Useful for tabular data exploration.

heatmap(correlation_matrix, var_names, var_names)
  • pcolor — Pseudocolor plot — flat 2D colored grid.
  • surf — 3D surface plot with colored faces.