How can I avoid color overlap in matplot python?-CodePudding

I am trying to make a clear visualizatin of my data. This is my code:

width = 0.5
plt.figure(figsize=(10,8))
counts1, bins, bars = plt.hist(data=df1_small, x='fz', bins=np.arange(-5, 5.5, width), color='dodgerblue', alpha=0.3) #rwidth can change the space between bars
#plt.plot(bins[:-1]   width/2, counts1, color='#FF6103', linewidth=2)
counts2, bins, bars = plt.hist(data=df2_big, x='fz', bins=np.arange(-5, 5.5, width), color='red', alpha=0.1)
#plt.plot(bins[:-1]   width/2, counts2, color='#76EEC6', linewidth=2)
labels = ["small", "big"]
plt.legend(labels)
plt.grid(False)
#plt.savefig("./figure/acce.eps", dpi=300)
plt.savefig("./figure/acce.png", dpi=300)
plt.show()

Whenever I plot, I found that color is overlapped if plot is overlapped.

Is there any idea to avoid this overlap?

This is my plot right now:

I want to avoid color overlapping and make it clear with just two colors.

Thank you

CodePudding user response：

If you want to avoid any overlap between the two histograms, you could plot both in separate subplots. In this case, I think it makes more sense to title the axes than to add labels, but you could do either. See below:

# Create two subplots, aligned horizontally
fig, axes = plt.subplots(1, 2, figsize=(10, 8))

width = 0.5

# Plot each histogram in its own axis
counts1, bins, bars = axes[0].hist(data=df1_small, x='fz', bins=np.arange(-5, 5.5, width), color='dodgerblue', alpha=0.3) #rwidth can change the space between bars
counts2, bins, bars = axes[1].hist(data=df2_big, x='fz', bins=np.arange(-5, 5.5, width), color='red', alpha=0.1)

# Add title
axes[0].set_title("small")
axes[1].set_title("small")

# Add labels
axes[0].legend("small")
axes[1].legend("big")

# Need to disable the grid for both axes
axes[0].grid(False)
axes[1].grid(False)

plt.savefig("./figure/acce.png", dpi=300)
plt.show()