Detecting rise time from noisy data
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I have a noisy set of pressure vs time data. The pressure starts near vacuum level and begins to rise at a certain time which I want to determine. This can be done just by eyeballing to a fairly good accuracy but wanted to know if there is a statistical method to do so. The data I am looking at is in the attached excel sheet. Thanks
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Image Analyst
on 25 Aug 2014
Try running a median filter on it, medfilt1(). It will get rid of the spurious spike but keep the monotonic increases. Make the filter window about twice the width of the spike.
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