| An Excel-lent fit!
Dave Woodward
Technical Specialist
Integration between desktop applications is the name of the game these
days. So if your work involves performing linear and nonlinear curve
fits, smoothing or weighting operations or statistical analysis of spreadsheet
data, how do you avoid constant switching between Excel and a separate
curve-fitting program?
The best answer we know is: get XLfit! With this
package, which integrates completely into the Excel environment (including,
in the latest version, Excel 2003), you can preview, build and customise
charts in the same Excel workbook where your experimental data resides.
As far as we're aware, it's the only curve-fitting and statistical analysis
package that does that.
XLfit comes with an impressive range of models
to fit your Excel-generated data sets automatically. 3D fitting, global
fitting, PA2 and automatic outlier rejection and many other enhanced
techniques are designed to help you generate fast results.
But how do
you know you can rely on XLfit’s curve-fitting models?
XLfit’s developers, IDBS, worked closely with the UK National Physical
Laboratory (NPL) to test and validate the numerical correctness of the
curve-fitting component in XLfit 4 (the current version). NPL looked
at sixteen specific curve-fitting models from XLfit 4, generated ten
reference data sets for each and compared test results provided by IDBS
with their own reference results.
This independent validation
by the NPL means you can have absolute confidence in the results XLfit
generates. If you're an Excel user, it's hard to imagine a better curve-fitting
solution. |
RSS News Feeds
