NIST has developed several software packages for applied statistics. Additionally, NIST has started to adopt the R statistical programming language.
See NIST at http://www.nist.gov.
Direct link to NIST Dataplot homepage: http://www.itl.nist.gov/div898/software/dataplot/
http://www.nist.gov/itl/sed/gsg/metrology-for-microsoft-excel.cfm
Metrology for Microsoft Excel
Requires both Excel and R
Additional information:
See also the topics Metrology and Measurement Uncertainty Budget
Summary:
"The Statistical Reference Datasets (StRD) provides a Web-based service that provides reference datasets with certified values for a variety of statistical methods."
See also .Software Validation.
NIST Statistical Engineering Division research in statistical and probabilistic methods