Modify Plot Background and Grid Style
Description:
This program changes the background color of the plot and the figure, and customizes the grid lines to improve readability.
Explanation:
-
fig.patch.set_facecolor()sets the outer background color of the figure. -
ax.set_facecolor()sets the inner plot (chart area) background color. -
ax.plot()draws the line chart. -
ax.grid()adds grid lines with custom style (--dashed lines), color, and transparency (alpha). -
set_title(),set_xlabel(), andset_ylabel()label the chart. -
plt.show()displays the chart with the new background and grid style.
Program:
import matplotlib.pyplot as plt
# Sample data
x = [1, 2, 3, 4, 5]
y = [5, 10, 15, 20, 18]
# Create the plot
fig, ax = plt.subplots()
# Modify background color
fig.patch.set_facecolor('#f0f0f0') # Outside plot background
ax.set_facecolor('#ffffff') # Inside plot background
# Plot data
ax.plot(x, y, color='blue', marker='o')
# Customize grid
ax.grid(True, linestyle='--', color='gray', alpha=0.7)
# Add titles and labels
ax.set_title('Modified Background & Grid Style')
ax.set_xlabel('X-axis')
ax.set_ylabel('Y-axis')
# Show plot
plt.show()
Output:
