Python

  

 

 

 

Matplotlib

 

One of the feature that I thought of as the limitation of Python was lack of graphics/plot function. However, even if it is not a part of basic installation, you can add very powerful graphics/plot functionality like Matlab by installing a special library called matplotlib. You can get the library from following location.

 

Official Site :  http://matplotlib.org/

 

 

Installation

 

You can download and install the package from the above link, or install using pip as shown below. Definately I prefer pip method.

 

 

c:\Python35>pip install matplotlib

 

Collecting matplotlib

  Downloading matplotlib-1.5.3-cp35-cp35m-win32.whl (6.2MB)

    100% |################################| 6.2MB 178kB/s

Requirement already satisfied: numpy>=1.6 in c:\python35\lib\site-packages (from

 matplotlib)

Requirement already satisfied: python-dateutil in c:\python35\lib\site-packages

(from matplotlib)

Collecting pyparsing!=2.0.4,!=2.1.2,>=1.5.6 (from matplotlib)

  Downloading pyparsing-2.1.10-py2.py3-none-any.whl (56kB)

    100% |################################| 61kB 5.1MB/s

Collecting cycler (from matplotlib)

  Downloading cycler-0.10.0-py2.py3-none-any.whl

Requirement already satisfied: pytz in c:\python35\lib\site-packages (from matpl

otlib)

Requirement already satisfied: six>=1.5 in c:\python35\lib\site-packages (from p

ython-dateutil->matplotlib)

Installing collected packages: pyparsing, cycler, matplotlib

Successfully installed cycler-0.10.0 matplotlib-1.5.3 pyparsing-2.1.10

 

 

 

Basic Check

 

Once you installed the package, try quick check whether it is properly installed or not. You can simply type in several lines of commands as shown below.

 

>>> import numpy as np

>>> import matplotlib.pyplot as plt

 

>>> x = np.arange(0, 5, 0.1);

>>> y = np.sin(x);

>>> plt.plot(x, y)

[<matplotlib.lines.Line2D object at 0x05D61FB0>]

>>> plt.show()

 

 

 

or create a file as below and run.

 

matplot_BasicCheck.py

import numpy as np

import matplotlib.pyplot as plt

 

x = np.arange(0, 5, 0.1);

y = np.sin(x);

plt.plot(x, y)

plt.show()

 

 

NOTE : Matplotlib functionality and concept is very similar to the plotting in Matlab. If you are familiar with Matlab plot functions, you would catch up Matplotlib functions very easily.

 

 

 

Reference :

 

[1] Matplotlib tutorial (Nicolas P. Rougier)