Setting Axis Limits in Matplotlib
Question:
Faced with an unsuccessful attempt to set the y-axis limits on a Matplotlib plot, a user seeks guidance on how to achieve the desired limits using the following code:
import matplotlib.pyplot as plt plt.figure(1, figsize = (8.5,11)) plt.suptitle('plot title') ax = [] aPlot = plt.subplot(321, axisbg = 'w', title = "Year 1") ax.append(aPlot) plt.plot(paramValues,plotDataPrice[0], color = '#340B8C', marker = 'o', ms = 5, mfc = '#EB1717') plt.xticks(paramValues) plt.ylabel('Average Price') plt.xlabel('Mark-up') plt.grid(True) plt.ylim((25,250))
Despite setting plt.ylim((25,250)), the y-axis limits default to 20 and 200. How can the limits be adjusted to the intended 20 and 250?
Answer:
To set the axis limits in Matplotlib, one needs to access the current axis using plt.gca(). Once the current axis is obtained, the limits can be set using the set_ylim() method. The following code snippet demonstrates this:
ax = plt.gca() ax.set_ylim([20, 250])
By implementing this modification, the y-axis limits will be successfully adjusted to the desired 20 and 250.
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