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1. Start with initial estimated values for each parameter in the equation. 2. Generate the curve defined by the initial values. Calculate the sum- ...

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

... variance and test the residuals, the difference of each column value minus its respective estimated mean, not the raw data. Are your residuals for t tests ...

GraphPad FAQs

By selecting this option, Prism will perform the unequal variance unpaired t ... Calculations. In this section, you are able to select the order that ...

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

... variability that defy the assumption of homogeneity of variance. Formal ... Each of these methods will calculate a p value for each comparison group ...

GraphPad FAQs

Some calculate it from the VIF (Variance Inflation Factor) and others do it as we did above but without the correction for degrees of freedom. So different ...

GraphPad FAQs

We find that too many people think "repeated measures" but don't take the ... variance of the differences between A and D, which equals the variance of ...

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

If you know X you can calculate Y exactly. You can think of R2 as the fraction of the total variance of Y that is explained by the model (equation). With ...

GraphPad FAQs

The %CV is the coefficient of variation as a percentage, so is defined as 100*SD/Mean. Since the SD and Mean are in the same units, the %CV is a unitless ...

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

... variance which - by definition - must be positive). Starting in Prism 9.2.0, Prism now performs REML calculations using both sets of initial values ...

GraphPad FAQs

... calculated using the linear ... However, remember that the first component contains more “information” (in the form of explained variance) ...

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