Python Programming/numpy - Wikibooks, open books for an open world

Numpy is a numeric library for python.

Installation[edit | edit source]

It's provided with the main Linux distribution, however it can be installed through the Debian package python-numpy. On Windows, it can be downloaded on http://sourceforge.net/projects/numpy/files/.

Then, once the .zip unpacked, the installation is done by entering into the console:

python setup.py install

In case of error:

• ImportError “No Module named Setuptools”, save the file https://bootstrap.pypa.io/ez_setup.py into the Python folder, and install it with: python ez_setup.py install.
  • Microsoft Visual C++ 9.0 is required, download it on https://www.microsoft.com/en-us/download/details.aspx?id=44266

Histogram[edit | edit source]

import numpy
mydata = [numpy.random.normal(0,1) for i in range(10000) ]
h, n = numpy.histogram( mydata , 100, (-5,5) )

See also[edit | edit source]

• http://numpy.scipy.org/
• http://docs.scipy.org/doc/numpy/reference/
• Research using FOSS