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Run forecast operator on STL decomposition

BarclaeysBarclaeys Member Posts: 18 Learner I
Hello,

I'm a new user with Rapidminer and exploring some time series.
I have created a process with an STL decomposition and have 2 questions:

1) I see a clear seasonality pattern but the amplitude is growing (i.e. there is an increasing trend in my seasonality). Is this normal or should a look to set a parameter to try and keep the seasonality constant

2) Can I apply a forecast operator on the decomposition model to predict values in the future?

Thanks,
Bart

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