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Data -vs- Time Add trend line [message #92286]

Tue, 10 November 2015 19:56

lucesmm
Messages: 26
Registered: October 2014

Junior Member

Hello
I have a data set organize by date , and I am plotting over a range of about 3 years.
I want to look at my data to see if there is any trend with time. so I tried to find references to add a trend line, modulation, or an envelope' to my plot, but I couldn't find much.
Has anyone came across a situation like this? it is obviously not a linear trend.
I also tried to look into using FFT may be , but I couldn't inure out if this will help me to my purpose.

I will appreciate any ideas you might have.

Thanks

Luz Maria

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