What is polychaosbasics?
is a R
package which computes
sensitivity indexes by using a method based on a truncated Polynomial Chaos Expansion of the response.
The necessary condition of the method is: the inputs must be uniformly and independently sampled. Since the inputs are uniformly distributed, the truncated Polynomial Chaos Expansion is built from the multivariate Legendre orthogonal polynomials.
Note that, when the inputs are dependent or not uniformly distributed, the package plspolychaos
can be used.
This package is developed in the MaIAGE
Lab. of INRA
J.-P. Gauchi (MaIAGE, INRA) [creator],
A. Bouvier (MaIAGE, INRA) [author],
A. Bensadoun (MaIAGE, INRA) [author]
J.-P. Gauchi, A. Bensadoun, F. Colas, N. Colbach. Metamodeling and global sensitivity analysis for computer models with correlated inputs: A practical approach tested with 3D light interception computer model. Environmental Modelling & Software, Volume 92, June 2017. p. 40-56. doi
Some examples of polychaosbasics
be found User Guide
polychaosbasics is an open source, freely available software released under
the GPL-3 Licence.
the R-packages: lhs,
Download the last version
(uncompress the file before installation)
the CRAN site.