The calculator above will graph and output a simple linear regression model for you, along with testing the relationship and the model equation. Keep in mind that Y is your dependent variable: the one …

You can use statistical software such as Prism to calculate simple linear regression coefficients and graph the regression line it produces. For a quick simple linear regression analysis, try our free …

When Prism performs simple linear regression, it automatically superimposes the line on the graph. If you need to create additional graphs, or change which line is plotted on which graph, keep in mind …

Prism offers two forms of simple regression: simple linear regression and simple logistic regression. Although these analyses are related, we discuss them separately.

In these cases, linear regression will fit a straight line to the data but the graph will appear curved since an axis (or both axes) are not linear. In contrast, nonlinear regression to an appropriate nonlinear …

There are two ways to compute r2 when the regression line is constrained. As you saw in the previous section, r2 is computed by comparing the sum-of-squares from the regression line with the sum-of …

Gain access to our online training center designed to help you master the fundamentals of Prism and key statistical concepts: t tests, ANOVA, linear regression; how to use Prism and much more!

Create publication-quality graphs and analyze your scientific data with t-tests, ANOVA, linear and nonlinear regression, survival analysis and more.

For the purposes of this walkthrough, we will be using the Simple logistic regression sample data found in the "Correlation & regression" section of the sample files.

You'll find it easy to estimate initial values if you have looked at a graph of the data, understand the model, and understand the meaning of all the parameters in the equation. Remember that you just …