Removing frame while keeping axes in pyplot subplots

Question

I am creating a figure with 3 subplots, and was wondering if there is any way of removing the frame around them, while keeping the axes in place?

Sacci

Answer 1

If you want to remove the axis spines, but not the other information (ticks, labels, etc.), you can do that like so:

fig, ax = plt.subplots(7,1, sharex=True)

t = np.arange(0, 1, 0.01)

for i, a in enumerate(ax):
    a.plot(t, np.sin((i + 1) * 2 * np.pi * t))
    a.spines["top"].set_visible(False)
    a.spines["right"].set_visible(False)
    a.spines["bottom"].set_visible(False)

or, more easily, using seaborn:

fig, ax = plt.subplots(7,1, sharex=True)

t = np.arange(0, 1, 0.01)

for i, a in enumerate(ax):
    a.plot(t, np.sin((i + 1) * 2 * np.pi * t))

seaborn.despine(left=True, bottom=True, right=True)

Both approaches will give you:

Erotogenic

If you happen to have polar plots, spines are defined differently, so per https://mcmap.net/q/450944/-turn-off-axis-border-for-polar-matplotlib-plot you need to do: a.spines['polar'].set_visible(False) – Mummify

In Python 3, the for loop is even simpler: for a in ax: – Entomostracan

@Erotogenic How would I keep the x-axis at the last subplot in the above code? – Chassis

Answer 2

Try plt.box(on=None) It removed only the bounding box (frame) around plot, which is what I was trying to do.

plt.axis('off') removed tick labels and the bounding box, which wasn't what I was looking to accomplish.

Statistics

Answer 3

You can achieve something like this with the axis('off') method of an axis handle. Is this the kind of thing you are after? (example code below the figure).

fig, ax = plt.subplots(7,1)

t = np.arange(0, 1, 0.01)

for i, a in enumerate(ax):
    a.plot(t, np.sin((i+1)*2*np.pi*t))
    a.axis('off')

plt.show()

Boundary

Answer 4

Try

ax.set_frame_on(False)

It removes the box frame around any plot, but the x and y ticks remain.

Aberrant