==Python matplotlib==
[[Python][Python NumPy]]
{{category グラフ}}
*http://matplotlib.sourceforge.net/
**activate.bat に set "TCL_LIBRARY=C:\Python27\tcl\tcl8.5" を追記
*[Python WindowsにPIPをインストール] [PIP]
C:\Python27\Scripts>>pip install matplotlib C:\Python27\Scripts>>pip install python-dateutil C:\Python27\Scripts>>pip install pyparsing
===グラフウィンドウ===
====表示確認====
*グラフ描画のバックエンドが何に設定されているのかとウィンドウの表示確認
>>> >>> import matplotlib >>> >>> matplotlib.get_backend()
'TkAgg'
>>> >>> import pylab >>> >>> pylab.show() >>> >>> pylab.figure() <<matplotlib.figure.Figure object at 0x00000000043979E8>> >>> >>> pylab.show()
[[File:1053_matplotlib_graph_window01.jpg]]
===例===
=====例1=====
>>> >>> from pylab import * >>> >>> x = range(10) >>> >>> y = [y1**2 for y1 in x] >>> >>> plot(x, y, 'ro') [<<matplotlib.lines.Line2D object at 0x0278D170>>] >>> >>> savefig('test.png') >>> >>> show()
[[File:1055_matplotlib01.jpg]]
=====例2=====
>>> >>> from pylab import * >>> >>> from numpy import * >>> >>> x = arange(-3,3,.1) >>> >>> y = [y1**3 for y1 in x] >>> >>> plot(x,y) [<<matplotlib.lines.Line2D object at 0x02C1C270>>] >>> >>> show()
[[File:1056_matplotlib02.jpg]]
===棒グラフ===
*http://matplotlib.org/api/pyplot_api.html#matplotlib.pyplot.subplots
>>> >>> import numpy as np >>> >>> import matplotlib.pyplot as plt >>> >>> import random >>> >>> random_data = [random.randrange(0,10) for x in range(10)] >>> >>> random_data
[0, 1, 8, 4, 5, 9, 8, 0, 4, 7]
>>> >>> fig,ax = plt.subplots() >>> >>> ax.bar(np.arange(10),random_data,1) <<Container object of 10 artists>> >>> >>> plt.show()
[[File:1057_matplotlib03.jpg]]