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Pyaffy

pyAffy: Processing raw data from Affymetrix expression microarrays in Python.

Install / Use

/learn @flo-compbio/Pyaffy
About this skill

Quality Score

0/100

Supported Platforms

Universal

README

.. Copyright (c) 2016 Florian Wagner

This file is part of pyAffy.

pyAffy is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License, Version 3,
as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

pyAffy

.. "|docs-latest| |docs-develop|

pyAffy is a Python/Cython implementation of the RMA algorithm for processing raw data from Affymetrix expression microarrays. For a detailed discussion of this implementation, see the pyAffy PeerJ preprint__. For a list of changes, see the changelog <changelog.rst>_.

__ peerj_preprint_

.. _peerj_preprint: https://peerj.com/preprints/1790/

Installation

Option 1: Using pip


.. code-block:: bash

    $ pip install pyaffy


Option 2: Cloning the GitHub repository

.. code-block:: bash

$ git clone https://github.com/flo-compbio/pyaffy.git
$ cd pyaffy
$ pip install -e .

Usage

The rma function expects two parameters: A custom CDF file (from the Brainarray web site__) and an ordered dictionary (collections.OrderedDict) with sample names as keys and corresponding CEL files as values.

__ brainarray_

The rma function returns a list of genes, a list of samples, and an expression matrix (of type numpy.ndarray), in that order.

.. code-block:: python

from pyaffy import rma
# for documentation of the rma function, try:
# help(rma)
genes, samples, X = rma(cdf_file, sample_cel_files)

A small example with real code__ is available in the pyaffy-demos repository.

__ real_example_

.. _brainarray: http://brainarray.mbni.med.umich.edu/Brainarray/Database/CustomCDF/genomic_curated_CDF.asp .. _real_example: https://github.com/flo-compbio/pyaffy-demos/tree/master/minimal

Copyright and License

Copyright (c) 2016 Florian Wagner

::

pyAffy is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License, Version 3, as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

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GitHub Stars18
CategoryDevelopment
Updated10mo ago
Forks4

Languages

HTML

Security Score

82/100

Audited on Jun 8, 2025

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