I have the following matplotlib code import matplotlib.pyplot as plt import numpy as np # Time of day values time_of_day = [ "00:00", "01:00", "02:00", "03:00", "04:00", "05:00", "06:00", "07:00", "08:00", "09:00", "10:00", "11:00", "12:00", "13:00", "14:00", "15:00", "16:00", "17:00", "18:00", "19:00", "20:00", "21:00", "22:00", "23:00" ] # Electricity load values in W electricity_load = np.array([ 5460, 177, 163, 745, 770, 1049, 1090, 868, 277, 3117, 3416, 1383, 1551, 4324, 969, 431, 703, 1201, 898, 4969,7839, 259, 410, 617 ]) # Convert electricity load values to kW electricity_load_kW = electricity_load / 1000 # Price values in Cent/kWh price_values = [ 27.1, 26.5, 26.0, 25.1, 26.6, 27.5, 34.4, 51.3, 45.3, 44.3, 44.3, 41.3, 38.1, 35.5, 33.9, 37, 41.4, 48.6, 53.4, 48.6, 43.4, 38.7, 37.8, 27.4, ] # Create subplots within the same figure fig, (ax1, ax2) = plt.subplots(2, 1, figsize=(12, 10), sharex=True) # Plotting the bar diagram ax1.bar(time_of_day, electricity_load_kW[:len(time_of_day)], color='#FFD700', edgecolor='black') # Labeling the first plot ax1.set_ylabel('Electricity Load (kW)', fontsize=18) ax1.grid(axis='y', linestyle='--', alpha=0.7) # Plotting the step line plot ax2.step(time_of_day, price_values, where='post', color='limegreen', linewidth=6) # Labeling the second plot ax2.set_xlabel('Time of Day', fontsize=18) ax2.set_ylabel('Price (Cent/kWh)', fontsize=18) ax2.grid(axis='y', linestyle='--', alpha=0.7) # Adjust x-axis limits to eliminate empty space ax1.set_xlim(time_of_day[0], time_of_day[-1]) # Increase thickness and rotation of x-tick labels for ax in [ax1, ax2]: ax.tick_params(axis='x', which='both', labelsize=14, width=2) # Set x-tick labels with rotation and horizontal alignment plt.sca(ax1) plt.xticks(rotation=45, ha='right') plt.sca(ax2) plt.xticks(rotation=45, ha='right') # Tighten the layout plt.tight_layout() # Save the figure and plot it plt.savefig('C:/Users/wi9632/Desktop/temp_combined.png', dpi=100) plt.show() So I have a bar diagram on the upper part and on the lower part there is a step line plot. What I want is that the horizontal lines of the bar diagram and the step line plot are at the same x-position such that they are aligned. This means that the values for the x-label ticks (00:00 to 01:00, 01:00 to 02:00 etc.) should be at the same position which is currently not the case. Continue reading...