Subplots & Multi-Panel Figures

Subplots — Multiple Panels in One Figure

Use plt.subplots(rows, cols) to create grid layouts:

fig, axes = plt.subplots(2, 2, figsize=(12, 8))
ax1, ax2 = axes[0]   # top row
ax3, ax4 = axes[1]   # bottom row

Sharing Axes

# Share y-axis for comparison
fig, (ax1, ax2) = plt.subplots(1, 2, sharey=True)

plt.tight_layout()

Always call this before saving — it automatically adjusts spacing so labels don't overlap.

Common Line Styles

Common Markers

'o' circle, 's' square, '^' triangle, 'D' diamond, '*' star