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Graphing a family of theoretical curves, often called plotting a function, is useful in three contexts:

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Many log(inhibitor) vs. response curves follow the familiar symmetrical sigmoidal shape. The goal is to determine the IC50 of the inhibitor - the concentration ...

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The R2 quantifies how well a model fits the data. When you compare models, the one with more parameters can bend and twist more to come nearer the points, ...

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Prism can interpolate from several data sets at once. To do this, put all the unknowns on lower rows on the data table than all the knowns (left panel).

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Prism reports "Impossible weighting" when weighting would lead to division by zero for one or more point. This can happen when you choose to weight by the ...

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How to cite these pages; PRINCIPLES OF STATISTICS. The big picture; The Gaussian distribution. Importance of the Gaussian distribution; Origin of the Gaussian ...

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This alternative approach is based on information theory, and does not use the traditional “hypothesis testing” statistical paradigm.

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How to cite these pages; PRINCIPLES OF REGRESSION. Understanding mathematical models; Fitting models; Principles of simple linear regression; Principles of ...

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How to cite these pages; PRINCIPLES OF STATISTICS; STATISTICS WITH PRISM 11. We stand in support of our Ukrainian colleagues, and against the Russian invasion.

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How to cite these pages; PRINCIPLES OF STATISTICS. The big picture; The Gaussian distribution; Standard Deviation and Standard Error of the Mean; The lognormal ...

https://www.graphpad.com/guides/prism/latest/statistics/