---
code_id: 45447
site_ownership_code: "SNL"
open_source: true
repository_link: "https://github.com/sandialabs/stepwise"
landing_page: ""
project_type: "OS"
software_type: "S"
official_use_only: {}
developers:
- email: "CedricSallaberry@gmail.com"
  orcid: ""
  first_name: "Cedric"
  last_name: "Sallaberry"
  middle_name: "Jean-Marie"
  affiliations:
  - "Sandia National Laboratories"
- email: ""
  orcid: ""
  first_name: "Amy"
  last_name: "Gilkey"
  middle_name: "P."
  affiliations:
  - "Sandia National Laboratories"
- email: ""
  orcid: ""
  first_name: "VJ"
  last_name: "McDonough"
  middle_name: ""
  affiliations:
  - "K-State University"
- email: ""
  orcid: ""
  first_name: "Javier"
  last_name: "Rojo"
  middle_name: ""
  affiliations:
  - "Standford University"
- email: ""
  orcid: ""
  first_name: "KE"
  last_name: "Kemp"
  middle_name: ""
  affiliations: []
- email: ""
  orcid: ""
  first_name: "Amy"
  last_name: "Gilkey"
  middle_name: ""
  affiliations:
  - "Contractor"
- email: "ron@swetchon.com"
  orcid: ""
  first_name: "Ronald"
  last_name: "Iman"
  middle_name: "J."
  affiliations: []
contributors: []
sponsoring_organizations:
- organization_name: "USDOE"
  funding_identifiers: []
  primary_award: "AC04-94AL85000"
  DOE: true
contributing_organizations: []
research_organizations:
- organization_name: "Sandia National Laboratories (SNL-NM), Albuquerque, NM (United\
    \ States)"
  DOE: true
related_identifiers: []
award_dois: []
release_date: "2010-08-05"
software_title: "Stepwise v. 2.21"
acronym: "Stepwise v.2.21"
doi: "https://doi.org/10.11578/dc.20201001.32"
description: "The statistical code, STEPWISE, evaluates variable importance by developing\
  \ regression models between the observed response and input variables using either\
  \ a forward, backward, or stepwise regression procedure on the raw or ranked data.\
  \ The software will be used for performing sensitivity analysis on probabilistic\
  \ results. Stepwise creates linear (or monotonic) regression of the output of interest\
  \ using a set of input data in a stepwise fashion (i.e., adding one variable at\
  \ a time). The program estimates parameters such as regression and standardized\
  \ regressions coefficients for each selected input variables as well as the coefficient\
  \ of determination of the resulting model"
programming_languages:
- "FORTRAN"
version_number: "2.21"
country_of_origin: "United States"
project_keywords: []
licenses:
- "GNU Lesser General Public License v3.0"
recipient_org: "Sandia National Laboratories"
site_accession_number: "SCR# 1357.0; 7548"
file_name: ""
date_record_added: "2020-10-01"
date_record_updated: "2024-07-22"
is_file_certified: false
last_editor: "copyrightadmin@sandia.gov"
is_limited: false
links:
- rel: "citation"
  href: "https://www.osti.gov/doecode/biblio/45447"