I remember there being a function or plugin in MATLAB that allowed the user to click on points in a figure to generate a set of datapoints that MATLAB may or may not have converted into an x-y equation. The user interacted with the figure through a GUI. It has been a long time since I used it, but I am now in need of it and can't find it. I was wondering if there was anyone that knew of this plugin/function and, if so, could direct me to where to find it. Thanks!