Re: [scikit-learn] Contribution to sklearn: Cross validation of time series

2017-04-28 Thread andres lago
p. m. Para: Scikit-learn user and developer mailing list Asunto: Re: [scikit-learn] Contribution to sklearn: Cross validation of time series Hey Andres. I think there might be a PR for that. Can you explain the minimum size of the training set? How is that used? I thought the other main option would b

Re: [scikit-learn] Contribution to sklearn: Cross validation of time series

2017-04-28 Thread Sylvain Marchienne
Hi Andres, hi Andy, Indeed in real life I also needed to cross-validate time series in a different manner than TimeSeriesSplit implemented in sklearn does. I fully support the idea of such a contribution Andres. As Andy mentioned, the main option would be a « rolling window » or as I use to say

Re: [scikit-learn] Contribution to sklearn: Cross validation of time series

2017-04-28 Thread Andreas Mueller
Hey Andres. I think there might be a PR for that. Can you explain the minimum size of the training set? How is that used? I thought the other main option would be "rolling window" cross validation to use a fixed length cv training set. So the two options to me were rolling window and what we're d