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ID must vary You cannot get the values of a and b if ID is constant. In fitting parameters to a model, you need at least as many conditions as parameters to estimate. You have two parameters (a and b), so you need at least two values of ID. I don't think it makes sense to make any assumptions about the values of one parameter (e.g., that b is 0). So your ...


Here is a method that addresses this issue. Upon a left-/right click a selection of menu items is displayed in a circular manner around the cursor's current position. Menu items are displayed as callouts and each callout is made up of an 'arm' and a 'bubble'. You select the desired menu item by either selecting the arm or the bubble. This minimises cursor ...

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