散布図のプロットと装飾

装飾を加えて散布図を表示する例。

../../../_images/plot_scatter_1.png

Python ソースコード: plot_scatter.py

import numpy as np

import matplotlib.pyplot as plt



n = 1024

X = np.random.normal(0, 1, n)

Y = np.random.normal(0, 1, n)



T = np.arctan2(Y,X)



plt.scatter(X, Y, s=75, c=T, alpha=.5)

plt.xlim(-1.5, 1.5)

plt.xticks(())

plt.ylim(-1.5, 1.5)

plt.yticks(())



plt.text(-0.05, 1.02, " Scatter Plot:  plt.scatter(...)\n",

      horizontalalignment='left',

      verticalalignment='top',

      size='xx-large',

      bbox=dict(facecolor='white', alpha=1.0, width=400, height=65),

      transform=plt.gca().transAxes)



plt.text(-0.05, 1.01, "\n\n   Make a scatter plot of x versus y ",

      horizontalalignment='left',

      verticalalignment='top',

      size='large',

      transform=plt.gca().transAxes)



plt.show()

Total running time of the example: 0.12 seconds ( 0 minutes 0.12 seconds)