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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

Cement Characteristics by Direct Phase Assessment

Ongoing
DESCRIPTION: The major research goal is the accurate prediction of field performance metrics from accurate characterization of mineralogical composition and texture. Compounding characterization and prediction problems is the widespread reliance since the 1930's on the Bogue estimates of composition

Computational Biology: Comparison of Cell Image Segmentation Algorithms

Ongoing
The Problem: The initial project problem was to determine whether image analysis techniques existed (or could be developed by the ITL groups) which would assist in the automatic differentiation of the A10 and 3T3 cell lines. The larger problem at hand was to determine what factors (and interactions)
Staff from the Department of Homeland Security participate in a hands-on exercise as part of the SED short course on experiment design.

Short Courses

Ongoing
Staff members of the Statistical Engineering Division regularly offer short courses on uncertainty analysis, design of experiments, and other topics in statistical metrology at NIST, at conferences open to the public, and at other government agencies. Prospective attendees of short courses at NIST

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