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Statisticians have devised several methods for detecting outliers. All the methods first quantify how far the outlier is from the other values. This can be the ...

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

Robust methods. Some statistical tests are designed so that the results are not altered much by the presence of one or a few outliers. Such tests are said to be ...

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

You should remove outliers from your data when the value is completely impossible. Examples include a negative weight, or an age (of a person) that exceed 150 ...

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

If you choose both unequal weighting and robust fitting, therefore, Prism does the fitting assuming equal weights. However it uses your weighting choice when ...

GraphPad FAQs

Outlier elimination is misleading when you chose incorrect weighting factors. The left panel above shows data fit to a dose-response model. Four outliers were ...

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

In Prism's nonlinear regression, an outlier is a point that is far from the best-fit curve defined by robust regression.

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

Note that Prism does not remove the outlier from the regular data set. When you plot mean and error bar, the outlier is included in the calculation. When you ...

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

Check the "Automatic outlier elimination" option on the the first (Fit) tab of the nonlinear regression dialog. Prism first identifies any outliers, and then ...

GraphPad FAQs

However, experimental mistakes can lead to erroneous values – outliers. Even a single outlier can dominate the sum-of-the-squares calculation, and lead to ...

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

Prism can identify outliers in each column using either the Grubbs' or ROUT method. Outlier detection can be a useful way to screen data for problems, ...

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