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I have a scatter plot graph with a bunch of random x, y coordinates. Currently the Y-Axis starts at 0 and goes up to the max value. I would like the Y-Axis to start at the max value and go up to 0.
points = [(10,5), (5,11), (24,13), (7,8)] x_arr = [] y_arr = [] for x,y in points: x_arr.append(x) y_arr.append(y) plt.scatter(x_arr,y_arr) 
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Most common method is by using invert_xaxis() and invert_yaxis() for the axes objects. Other than that we can also use xlim() and ylim(), and axis() methods for the pyplot object. To invert X-axis and Y-axis, we can use invert_xaxis() and invert_yaxis() function.
To get a reverse-order cumulative histogram in Matplotlib, we can use cumulative = -1 in the hist() method. Set the figure size and adjust the padding between and around the subplots.
Rotate X-Axis Tick Labels in Matplotlib There are two ways to go about it - change it on the Figure-level using plt. xticks() or change it on an Axes-level by using tick. set_rotation() individually, or even by using ax.
There is a new API that makes this even simpler.
plt.gca().invert_xaxis() and/or
plt.gca().invert_yaxis() DisplacedAussie's answer is correct, but usually a shorter method is just to reverse the single axis in question:
plt.scatter(x_arr, y_arr) ax = plt.gca() ax.set_ylim(ax.get_ylim()[::-1]) where the gca() function returns the current Axes instance and the [::-1] reverses the list.
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