How do I Make A Plot Using System Time Values?

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Jay H
Jay H 2015-8-22
回答： Walter Roberson 2015-8-22
Hi there,
I'm having trouble figuring out something that I'm sure is really simple. I'm logging the output of a sensor, but the software generates timestamps using the system clock. I have tried using the import feature, to no success. I have attached the included log file in Excel format which I'm sure will clarify things a little bit.
Thanks.

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回答（2 个）

Gareth Thomas
Gareth Thomas 2015-8-22
Maybe this will help you:
mydata = readtable('sensor_log.xls');
mydata.Time=datetime(mydata.Time,'ConvertFrom','datenum','Format','HH:mm:ss')
Please note that I am using R2015a.
If you are using earlier versions you might want to use datestr.
Walter Roberson
Walter Roberson 2015-8-22

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