Bio-Rad Quantity One 1-D Analysis Software - Manual (Page 233)

Quantity One User Guide
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Fig. 10-16. Volume Regression Curve window.
On the curve, each standard volume is marked by a red X and each unknown is
marked by a blue triangle.
The X axis is the adjusted volume and the Y axis is the concentration, based on the
standards you have marked on the image.
To display the numbers and names of the volumes, click on the Show Name
checkbox.
Select the preferred regression method from the list of option buttons. The regression
equation for the selected method is displayed in the lower left of the window.