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Pyslice is a templating engine to easily create data sets for parametric modeling.

Project description

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:alt: Latest release

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:alt: pyslice license

Welcome to pyslice - dataset template engine's documentation!
pyslice is a specialized templating system that replaces variables in
a template data set with numbers taken from all combinations of a grouped
series of numbers. It creates a dataset from input template files for each
combination of variables in the series.

The main function of pyslice is to provide utility functions for parametric
modeling. Parametric modeling is a process of varying many inputs to a model.
A drawback to parametric modeling is that there are usually hundreds to
thousands of data sets to prepare and a corresponding number of model runs.
pyslice will create the model data sets and manage the model runs, or place the
model runs in a queue managed by other software. pyslice is also useful in
establishing the sensitivity of a model to changing parameters.

Reference documentation is at :ref:`pyslice_documentation`.


At the command line::

$ pip install pyslice
# OR
$ easy_install pyslice

Or, if you have virtualenvwrapper installed::

$ mkvirtualenv pyslice
$ pip install pyslice

Development is managed on bitbucket at

2013-09-04: v1.7
* Reworked the documentation
* Cross compatibility between 2.7 and 3.3 helped out with 'six'.
* Git didn't do what I want with the moves, but
* Moved to pyslice/__init__
* Moved pyslice_lib to pyslice/pyslice_lib
* Ran 'autopep8' on all files - especially useful on PySPG
* Added a README.txt that gives some description.
* Moved to sphinx, restructured text
* Minor improvements to to allow 'upload_docs' to work.
* Finished transition to git. Deleted CVSROOT and moved everything up
a directory.
* Demoed all parts of the functionality in the example.

2005-08-30: v1.6
Moved to threads rather than 'os.fork/os.exec' which means that should be able to run on Windows, though not tested. Eliminated a bunch of code required by the 'os.fork/os.exec' that should make easier to maintain.

2005-06-06: v1.5
Uses 'pyslice.ini' instead of 'pyslice.conf'. This allows the use of .ini editors to easily map to the correct format.

2005-05-30: v1.4
Can pull variable values from statistical distributions in Python's 'random' package.
Uses os.path.walk to make considerable faster.
Minor code clean-up

2004-12-16: v1.3
Now depends on Python 2.x or better. Am now using the PySPG library ( in order to develop the variable sets. Because of PySPG now have the capability of doing geometric and list based parameter generation.

2001-07-10: v1.1
Removed Python 2.x dependencies. Variables can now use floating point. Works correctly to just create data sets by setting max_processes = 0 in pyslice.conf. Changes to documentation.

2001-07-10: v1.0
Initial release

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