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Why Choose Prism? Save Time Performing Statistical Analyses. A versatile statistics tool purpose-built for scientists-not statisticians. Get a head start by ...

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Dose-response curves can be used to plot the results of many kinds of experiments. The X axis plots concentration (or dose) of a drug or hormone.

https://www.graphpad.com/guides/prism/latest/curve-fitting/

Heat maps are a standard way to plot grouped data. The basic idea of a heat map is that the graph is divided into rectangles or squares, each representing ...

https://www.graphpad.com/guides/prism/latest/user-guide/

This calculator computes EC 80 or EC 90 (etc.) from EC 50. How? 1. Enter EC 50 I will enter: EC 50 as concentration. For 1nM, enter '1e-9'.

https://www.graphpad.com/quickcalcs/ecanything1/

Run statistical analyses quickly and directly in your browser. Choose the kind of calculator you want to use.

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Prism provides the ability to automatically add lines or brackets with P values (or associated asterisks) to a graph of data after performing an appropriate ...

https://www.graphpad.com/guides/prism/latest/user-guide/

Statistical test for normality with common statistical models. How to determine if data is normally distributed using visual and statistical tests. Normally ...

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When working with unknown concentrations, perhaps of an impure substance, some prefer to plot concentrations in relative terms, such as "dilution factor" ...

GraphPad FAQs

The standard dose-response curve is sometimes called the four-parameter logistic equation. It fits four parameters: the bottom and top plateaus of the curve, ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/

You should average the logEC50 values, not the EC50 values. Since the distribution of EC50s is usually not symmetrical, the mean of the EC50s is not a good way ...

GraphPad FAQs