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GraphPad Prism fits curves, calculates statistics and graphs data better than other programs do.

What's new in Prism 5?
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Curve fitting
Statistics
Scientific graphing
Organizing experiments
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Organizing experiments

Prism brings you a completely new approach in scientific graphing software. Designed by a scientist for scientists, Prism works the way you do. Prism understands the links between data and analyses, and stores your related data, analysis results, graphs, layouts and notes in one efficient project file. Even your most complicated projects stay organized and easy to manage. Unlike other scientific graphics programs, Prism stores all your analysis results along with your data and graphs. And more importantly, Prism remembers exactly how you analyzed your data, even if it required several steps. When you open a Prism file, you can retrace every step of every analysis. Read on to learn more about how Prism can save you valuable time and effort.

Automatic error bars.

Protocols often require replicate measurements (i.e., triplicates). Most programs make it too difficult to calculate and plot error bars. Not Prism. Simply enter replicate values and Prism calculates and graphs error bars automatically. Choose from SD, SEM, 95% CI or range. With Prism there's no wading through a maze of unnecessary dialogs to make error bars.

Simultaneous analysis of related data sets.

Experiments typically compare several experimental conditions. With other programs, you must go through many tedious steps to analyze each data set - one at a time. Click one button and Prism analyzes and graphs several experimental conditions at once.

Efficient analysis of repeated experiments.

You rarely perform an experiment just once - you repeat it to verify results. With Prism you can analyze a repeated experiment in one step. Just plug in the new data, and Prism handles all the graphing and analysis steps automatically. Every file you save can be a template for a repeated experiment. This powerful feature can save you hours of repetitive work. And, if you need to analyze a large series of experiments, Prism's easy-to-use scripting language will automate importing the data files and exporting the results. It just doesn't get any easier.

Effortless corrections.

Even the most careful scientist can make a data entry mistake. With other programs, a simple mistake can cost you hours of wasted time. Not with Prism. That's because Prism data tables are linked to analyses, graphs and page layouts. When you fix a data entry mistake, your data are automatically reanalyzed and your graphs updated.

An organized record of work.

Science requires rigorous record keeping. Your data files should help you document your work.

Prism lets you enter unstructured notes and structured data (notebook number, experimenter, lot number, concentration, etc.) onto Info sheets. It's an ideal way to keep each part of your experiment organized and on target. Each info sheet can be linked to a particular data table or be general for the entire project. You can use info constants as constants in transforms, as constraints in nonlinear regression, and as graph titles and legends.