Prism lets you perform a variety of statistical tests and analyses, as well as curve-fitting, transforming and normalizing your data.
Try it yourself
1.
While viewing either the data table or graph, click on the "Analyze" button on the Prism toolbar.
2.
Select the type of analysis you would like to perform. For this tour we'll ask Prism to fit a curve to our data. In the first Analyze Data dialog, choose "Nonlinear regression (curve fit)" from the list of XY analyses as shown below, and press OK.By default, Prism will apply the analysis to all the data sets on your data table as shown in the right pane of the window (In this case, Control and Treated). If you like, you can uncheck any data sets you don't want to analyze.
3.
After you choose an analysis, Prism shows a Parameters dialog where you choose the details of that analysis. The Parameters dialog for nonlinear regression includes many options, but you don't have to learn these right away. The only choice you need to make in order to get started with curve fitting is to choose an equation. For this tour, select a one-phase exponential decay model and accept the default setting by pressing OK.
If you're unsure about a particular equation, click on the Learn more about link to read about an equation before you select it.
4.
Prism will place your results in a new Analysis Results table. Click on the "Table of Results" sheet in the Prism Navigator to view the results of the curve fit.
5.
Click Analysis checklist, the only button in the Interpret section of the toolbar, to read about the test you used and to learn about interpreting your results.
6.
Finally, click on your graph's name in the Navigator tree to see the new curves plotted on your graph. Remember, Prism links related data tables, graphs, and analyses. If your data changes, your graphs and analyses will update automatically.
