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T O P I C R E V I E W
JimThieser	Posted - 03/01/2021 : 3:15:49 PM Origin Ver. and Service Release (Select Help-->About Origin): Operating System: I together, I am working with large datasets (600000 rows). Here i have a period trigger signal between 0 and 5. Is there any function to detect the jumps quickly and get me the rownumber as out put? I am working right now with an easy loop and compare two cells... but that takes ages.... Thanks...
2 L A T E S T R E P L I E S (Newest First)
minimax	Posted - 03/02/2021 : 8:31:57 PM Hi JimThieser, Does your signal contain pure 0 and 5 numbers? Or there is some noise? Would you mind to check if you can send us a sample file so that we can check further? You can click the "Send File to Tech support" link text on the top right corner to send the file. Max OriginLab Technical Support
YimingChen	Posted - 03/02/2021 : 3:55:50 PM Can you try using Python script in Origin worksheet Set Column Value dialog, see the example below to detect the rising point of the signal. import numpy as np def get_trigger(ll): ll = np.array(ll) result = np.where(np.diff(ll) > 3) return result[0].astype(float)+2 James

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