multipanel

Overview

A multi-panel figure is one figure, built one of two ways depending on what you have:

• Option 1 — redraw every panel (you have the data or plotting code): draw each data panel with a python script into its own subfigure so it packs to its own labels — no empty bands, and axes need NOT align across the grid. Follow the discipline below so legends stay inside their panels, panel letters sit at each panel's own top-left, and text never overlaps.
• Option 2 — composite finished images (you only have rendered PNG/PDF panels): paste them onto a plt.subplot_mosaic canvas — fine here, since images carry no tick labels to misalign — add panel letters, and export.

A mix is allowed: if one or two panels are image-only (no data/code), imshow them onto their own subfigure axes and redraw the rest into the same figure. Both modes export a vector PDF and a high-DPI PNG.