Considering that the analysis was lightning-fast in this case, we were surprised to find the plot had been drawn! Prism is speedy indeed. We hadn’t originally noticed a row of tabs along the bottom row, which provide access to extra features including a lab workbook for making notes as you go along, and the automatically generated scatterplot, which provides information on specific data points if you put the mouse over them. Missing from action are adjusted R-square and a model including both y-variables. Data Set C was empty, in case you were wondering. The results are easy enough to read and can be copied and pasted into a spreadsheet, providing the slope and intercepts with errors, along with numerous dandy statistics. Once you click on the picture of a line (or select the regression option from the menu), you get a host of choices, allowing most of the options you may need but not allowing for forward, backward, or similar options, or for pairwise vs listwise deletion of missing values, or any of the more esoteric alternatives. If you choose wisely, which can take some education or trial and error, you will get the option of doing the analysis you want, and the program will be extremely fast (at least on our Intel-based early Mac Pro.) Starting out, you choose the type of graphing or analysis you will want, and then create an empty data table which you can fill with data copied from a spreadsheet or imported from various open-source formats (not Excel). Prism’s focus appears to be guiding people through specific types of analyses based on the data they have it is less useful for exploratory work or times when you have a huge database with plans to do all sorts of odd things.

While Prism emphasizes biostatistics for laboratory work, it can be used by people in other fields easily enough. GraphPad provides full support for Macs the powerhouse, Prism, is now a Cocoa program for full OS X wonder and future-proofing its default file format is interchangeable with previous versions and the Windows version. GraphPad Prism for Mac: statistics software review

Graphpad prism 4