Uncertainty analysis software comparison

Products Software UncertaintyAnalyzer 3.0 Software Comparison Type A Estimates

Type A Uncertainty Estimates

A Type A uncertainty estimate is defined as an estimate obtained from a sample of data. Data sampling involves taking repeat measurements of the quantity of interest. For this estimate to be valid, it is important that each repeat measurement is independent, representative and taken randomly. Consequently, Type A estimates usually apply to the uncertainty in repeatability or random error.

A ü in the cell indicates that the particular capability or feature is available. Alternatively, a blank cell indicates that the capability or feature is not available. Comments and footnotes are included to clarify significant differences between software applications or to provide necessary details.

Features and Capabilities	Uncertainty Calculator 3.2	Uncertainty Sidekick 1.0	Assistant 2.3	Uncertainty Sidekick Pro 1.0	Uncertainty Toolbox 2.8	Uncertainty Analyzer 3.0	GUM Workbench 1.3
Data Analysis Options	Sampled Values	Sampled Values or Sampled Mean Values	Sampled Values	Sampled Values or Sampled Mean Values	Sampled Values	Sampled Values, Sampled Mean Values, Sampled Cells, or Mixed¹	Sampled Values
Maximum Sample Size	50	200	>1,000	200	30	2,000	9,999
Data Import Options	Formatted Text File	Paste from Clipboard	Formatted Text or Paste from Clipboard	Delimited Text, Excel, Lotus, Various Database Formats, or Paste from Clipboard	Paste from Clipboard	Delimited Text, Excel, Lotus, Various Database Formats, or Paste from Clipboard	Formatted Text, Excel, or Paste from Clipboard
Data Export Options	Formatted Text File	Paste to Clipboard	Formatted Text File or Paste to Clipboard	Paste to Clipboard	Paste to Clipboard	Paste to Clipboard	Tab Delimited Text, Rich Text or HTML Formats
Computed Sample Statistics	Min., Max., and Mean Values, Standard Deviation, Variance	Mean Value, Standard Deviation, Standard Deviation of Mean Value	Mean Value, Standard Deviation	Mean Value, Standard Deviation, Standard Deviation of Mean Value	Mean Value, Standard Deviation, Standard Deviation of Mean Value	Mean Value, Standard Deviation, Standard Deviation of Mean Value, Skewness, Kurtosis	Mean Value, Standard Deviation, Standard Deviation of Mean Value
Statistics for Sample Subsets						ü
Outlier Identification and Removal						ü
Normality Testing						ü
Data Correction Options		See Footnote²		See Footnote²	See Footnote³	See Footnote²

1 The mixed option allows for the use of a mean value computed from sample values combined with a user specified standard deviation and sample size obtained from a prior sample of data that characterizes the repeatability uncertainty of a measurement process.

2 Corrections for parameter bias and/or environmental factors can be applied to the sample mean by selecting check boxes.

3 Correction for thermal expansion is computed, but user must manually apply this value to sample mean.

Integrated Sciences Group
14608 Casitas Canyon Road • Bakersfield, CA 93306
Phone 1-661-872-1683 • FAX 1-661-872-3669

Page Updated February 12, 2015