Thomas Harding
Data Analysis Software Specialist

Research-strength curve-fitting and data analysis inside Excel? Xlfit 4 makes this a reality. Now you can visualise, interpret and present your Excel data without leaving the spreadsheet itself.

If you like to store data inside Microsoft Excel but you’re resigned to having to export the data for subsequent analysis, XLfit 4 could change the way you work. It’s the only curve-fitting and statistical analysis package that allows you to preview, build and customise charts in the same workbook as your experimental data. That’s right - no more switching back and forth between a curve-fitting program and Excel!

XLfit 4 offers many fit categories and models to cater for the chart-building requirements of a wide range of users. It brings to Excel three-dimensional modelling, global fitting throughout a range of data sets and automatic data point rejection, and all through an intuitive interface with preview and browsing tools that allow you to fit curves, perform statistical analysis and view and overlay charts with ease.

We’ve found Xlfit 4 very easy to use. The preview pane in the Fit and Chart Designers allows you to instantly visualise data even before applying a model, so you can get an overall impression of how the data looks before analysis begins. Then click to select a model from an extensive range of fit model categories, and immediately see how your model affects the fit. As you select a model, XLfit 4 displays a brief description of it and its formula; then instantly preview how parameter settings, automatic data point knockout, weighting, error bar values and intersects affect the fit.

Best of all, from your templates, select the graph you want to present and copy it into Microsoft PowerPoint or Word, where you still have full editing control over the chart and its content. The chart is copied as an object, so it retains a high visual integrity with no jagged lines or smudging.

This really is well worth a look.