Heatmaps

Pair cell with a text mark on the same band scales to color every episode by rating and print the rating inside its square.

Run binXY with fixed thresholds and draw the bins with rect, so color shows how many penguins share each bill size.

Map x to the week number and y to the weekday so cell lays daily values out like a calendar page.

Total events per day with binTimeX and color each day by usage level through an ordinal scale, one column per week.

Use hexbin to group points into hexagons of a fixed width, colored by count through threshold steps.

Pass densityContour the points and a list of thresholds to outline where the measurements cluster most.

Give contour a grid of values with its width and height to fill nested bands of wind speed.

Set length and rotate on vector to draw an arrow per position that shows wind speed and direction.

Draw delaunayLink under the dots to connect every point to its nearest neighbors with a triangulated mesh.