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A heatmap is a visual representation of data where values in a matrix is represented as colors, often after a re-ordering of the rows and columns to emphasize similarities.

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How to aggregate daily sales data to weekly for thousands of products? [closed]

I was thinking of creating a heatmap with weeks on the x-axis and products on the y-axis. But including all products doesn't seem feasible. Is this the correct way to do this? … I am not sure how to select which products from each category and create a heatmap
Tim George's user avatar