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January 22nd, 2016, 10:13 PM  #1 
Senior Member Joined: Feb 2014 Posts: 114 Thanks: 1  Trend Analysis
Hello, This is from Time series. Would you mind tell me what means the yellow line? Thanks 
January 23rd, 2016, 01:46 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,730 Thanks: 689 
It means y=f(t) where f(t) can be other than at+b. Examples: $\displaystyle y=e^t,\ y=ln(t),\ y=t^n$


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analysis, trend 
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