.. _method-polynomial_chaos-import_expansion_file:

"""""""""""""""""""""
import_expansion_file
"""""""""""""""""""""


Build a Polynomial Chaos Expansion (PCE) by importing expansion coefficients and a corresponding multi-index from a file


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**Specification**

- *Alias:* None

- *Arguments:* STRING


**Description**


The coefficients can be specified in an arbitrary order. The multi-index provided is used to generate a sparse expansion that conists only of the indices corresponding to the non-zero coefficients provided in the file.