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Mathematics & Statistics

Statistical analysis

News and Updates

Events

Projects and Programs

Breathalyzer

Standards Development to Ensure Reliable Breath Analysis in the Field

Ongoing
Numerous volatile organic compounds (VOCs) have been identified in human breath. These compounds can be produced by the body or by organisms in the body (e.g., bacteria or viruses) and provide a non-invasive window into human health. Inexpensive point-of-care devices are being developed to diagnose

Tunable Compression of Wind Tunnel Data

Ongoing
Variability of Bending Moments The values of the bending moments vary both within each run, and between runs. The between-runs variability provides a standard against which one should assess the severity of any loss of information that a data compression scheme may incur. To assess it, we fitted a

e-Statistics

Ongoing
DESCRIPTION: e-FITS is a web-based tool, currently available to NIST staff, used to perform the following tasks for over 100 probability distributions. Generate graphs of probability functions (probability density, cumulative distribution, inverse cumulative distribution, hazard, cumulative hazard

Design and Analysis of Key Comparisons

Ongoing
DESCRIPTION: With the recent signing of the Mutual Recognition Arrangement (MRA), National Metrology Institutes (NMI's) and Regional Metrology Organizations (RMO's) around the world have committed themselves to establishing the equivalence of their measurement standards. Currently, however, there is

Publications

Guia Breve sobre la Incertidumbre de Medicion

Author(s)
Antonio Possolo, Maria Victoria Gelabert, David Hibbert, Jürgen Stohner, Olha Bodnar, Juris Meija
Esta Guía Breve reintroduce a los lectores en los principales conceptos y herramientas técnicas utilizadas para la evaluación y expresión de la incertidumbre de

Benford's law in atomic spectra and opacity databases

Author(s)
Yuri Ralchenko, Jean-Christophe Pain
The intriguing law of anomalous numbers, also named Benford's law, states that the significant digits of data follow a logarithmic distribution favoring the

Software

Calculator

Smart Investment Tool

This tool calculates metrics for investment analysis documented in NIST Advanced manufacturing Series 200-5. It calculates net present value, internal rate of