使用python绘图时缺少X和Y轴

Question

I having some issue replicating the example code for scatter plots in python. The code I am trying to replicate:

x = np.random.rand(10)
y = np.random.rand(10)
z = np.sqrt(x**2 + y**2)

plt.subplot(321)
plt.scatter(x, y, s=80, c=z, marker=">")

plt.subplot(322)
plt.scatter(x, y, s=80, c=z, marker=(5, 0))

verts = list(zip([-1., 1., 1., -1.], [-1., -1., 1., -1.]))
plt.subplot(323)
plt.scatter(x, y, s=80, c=z, marker=(verts, 0))
# equivalent:
#plt.scatter(x,y,s=80, c=z, marker=None, verts=verts)

plt.subplot(324)
plt.scatter(x, y, s=80, c=z, marker=(5, 1))

plt.subplot(325)
plt.scatter(x, y, s=80, c=z, marker='+')

plt.subplot(326)
plt.scatter(x, y, s=80, c=z, marker=(5, 2))

plt.show()

What I am expecting:

But this is what I am getting:

I can get the background to white by:

ax = plt.gca()
ax.set_axis_bgcolor('white')

But I can not get to display X and Y axis. I have tried many solutions from other stackoverflow posts but none of them seems to be working.

Could someone please help me solve this issue?

Answer 1

It seems that you are using ggplot style. You can change the default style:

pl.style.use("ggplot")
pl.rcParams['axes.edgecolor'] = "#777777"
pl.rcParams['axes.facecolor'] = '#FFFFFF'

Here is the result:

Answer 2

Thanks to @HYRY's solution.

Some more references about style sheets in matplotlib for beginners like me:

1. Customizing plots with style sheets

   • Defining your own style
   • Composing styles
   • Temporary styling

2. Matplotlib Style Gallery