Hi. For the first question, I think you might program the data selector tool to do it. The data selector tool allows you to drag the beginning and ending markers to choose a region. We can read the the positions of the markers, then do the fitting to a series of curves.
You may refer to a topic calledd Programming the Data Selector Tool in the Labtalk Help of Origin 6.1.
Deanna OriginLab Technical Services |