A package for performing whole brain simulations
THE VIRTUAL BRAIN SCIENTIFIC LIBRARY
The Virtual Brain Project (TVB Project) has the purpose of offering some modern tools to the Neurosciences community, for computing, simulating and analyzing functional and structural data of human brains.
“TVB Scientific Library” is the most important scientific contribution of TVB Project, but only a part of our code. In order to use this TVB Python Library (modify/run/test), you are advised to follow the steps described here: http://docs.thevirtualbrain.com/manuals/ContributorsManual/ContributorsManual.html#contributors-manual
The interaction with TVB source code is recommended for advanced users only, for which the concepts proposed by TVB are known and understood, and which also have some programming knowledge.
“TVB Scientific Library” comes in two major forms for code-contributors: as a light-weight Python library, or plugged into TVB framework (including Web interface and Persistence of data layers). Depending on your needs and resources, you could use any of the two available options for contributing and testing new code.
“TVB Scientific Library” is a light-weight, stand-alone Python library that contains all the needed packages in order to run simulations and analysis on data without the need for the entire TVB Framework. This implies that no storage will be provided so data from each session will be lost on close. You need to either persist it yourself in some manner or use the full TVBFramework where HDF5 / database storage is provided as default.
For more details, check: http://www.thevirtualbrain.org/
“TVB Scientific Library” contains the following packages: basic, datatypes, simulator and analyzers. The dependencies between these packages can be seen in tvb-package-diagram.jpg . Following is a short description of each of these packages:
This package is the base of TVB and holds sub-packages that are used by most of the other packages like logging, global settings and the TVB traits package. You should rarely (if at all) need to change code in this package, and should know exactly what you are doing before attempting to change anything from here.
The simulator and analyzers packages (as well as uploaders and visualizers in TVB Framework) will need to have a common “language” in order to work with the same data. In TVB architecture, that “common language” is represented by Data Types. TVB Data Types declarations are located in this package.
The Simulation Component is the most important component in The Virtual Brain solution, as it is the component responsible for all the scientific computation related to brain models and data.
You can find various demos of using the simulator here: http://docs.thevirtualbrain.org/demos/Demos.html .
Holds modules that can run various analysis of data resulted from the simulator. TVB is not strong in doing data analysis, we barely have a minimum set of analyzers for immediate needs.
To contribute to this repo, you are advised to first fork it under GitHub (through the web ui), and next clone that fork on your machine, and use it as you use any other git repository.
For testing the package, the Pytest framework is used. Pytest can be installed using pip.
Pytest will run all files in the current directory and its subdirectories of the form test_*.py or *_test.py. More generally, it follows standard test discovery rules
The command for running our tests has two forms. Recommendation when working with a git clone of tvb-library:
cd [folder_where_tvb_library_is] pytest tvb/test [--junitxml=path]
The second alternative form of running TVB tests, when installing TVB from Pypi, is:
pip install -U tvb-library pytest --pyargs tvb.tests.library
A coverage report can be generated with:
pip install pytest-cov cd [folder_where_tvb_library_is] py.test --cov-config .coveragerc --cov=tvb tvb/tests/ --cov-branch --cov-report xml:[file_where_xml_will_be_generated]
For issue tracking we are using Jira: http://req.thevirtualbrain.org
For API documentation and live demos, have a look here: http://docs.thevirtualbrain.org
A public mailing list for users of The Virtual Brain can be joined and followed using: firstname.lastname@example.org
Raw demo IPython Notebooks can be found under: https://github.com/the-virtual-brain/tvb-root/tree/master/tvb_documentation/demos
This project has received funding from the European Union’s Horizon 2020 Framework Programme for Research and Innovation under the Specific Grant Agreement Nos. 785907 (Human Brain Project SGA2), 945539 (Human Brain Project SGA3) and VirtualBrainCloud 826421.
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