I am very beginner in h2o and I want to know if there is any attribute selection capabilities in h2o framework so to be applied in h2oframes?
No there are not currently feature selection functions in H2O -- my advice would be to use Lasso regression (in H2O this means use GLM with alpha = 1.0) to do the feature selection, or simply allow whatever machine learning algorithm (e.g. GBM) you are planning to use to use all the features (they'll tend to ignore the bad ones, but it could still degrade performance of the algorithm to have bad features in the training data).
If you'd like, you can make a feature request by filling out a ticket on the H2O-3 JIRA. This seems like a nice feature to have.
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