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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Forum: Origin Forum Subject: Message: * HTML is OFF * Forum Code is ON Smilies OriginPro 2022, Win 7 Please tell me how to solve the problem. I have a long time series (over 100000 points) with a lot of (about 50) pulses. I want to approximate each pulse with by two decaying exponents and then calculate the average of the rise and fall constants. Can this action be done in one go? Personally, I don't think it's possible. I have another idea. It is possible to (1) split the entire time series into a large number of columns, where each column will contain one pulse, and (2) apply the "sequential fit" + "piecewise fit" applications. How to optimally perform partitioning (1) and are the fitting operations in (2) compatible?   Check here to subscribe to this topic.