fig, (ax1, ax2) = plt.subplots(1, 2, figsize=(10, 5))

cax1 = ax1.imshow(data, cmap=cmap_discrete)
ax1.set_title("Discrete Colormap", loc="left", fontdict={"weight": "bold"}, y=1.04)
fig.colorbar(cax1, ax=ax1)

cax2 = ax2.imshow(data, cmap=cmap_linear)
ax2.set_title("Linear Colormap", loc="left", fontdict={"weight": "bold"}, y=1.04)
fig.colorbar(cax2, ax=ax2)

plt.tight_layout()
plt.show()