Pipeline structure - predefined final estimator & stacked estimators

[nibu147]

Hello, is it possible with TPOT to:

1. make sure that the final estimator of a pipeline is a gradientboostingregressor
2. make sure that the final estimator uses, as stacked estimators, let's say an SVR and a linear regression ?

I see some predefined structure can be given to the pipeline, but didn't see how to satisfy my needs. Thank you!

[weixuanfu]

It can be predefined as a linear pipeline with template option. Please check this link for a quick example.