# All Questions

135,522 questions
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### How to get prediction interval from a model obtained in h2o?

From an AutoML Leaderboard on H2O, I selected a Stacked Ensemble model. I used this model to predict, using a new data set, and now I would like to obtain prediction intervals in addition to point ...
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### state-of-art of ARIMA

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I have a set of data of counts of hares in summer and in winter, which is very unbalanced: winter was too cold, and samplings were taken only in some 20 occasions, while during the pleasant summer the ...
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### PRISMA Statement: number of records returned by (one/several) databases?

In keeping with the guidelines of the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) Statement, I am trying to fill in their flowchart (Fig. 1) with the details of the ...
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### Properties of Nonparametric Test Statistics $B$

Given Consider the upper tail $H_0: \theta \leq 0 \,\,\, \text{vs} \,\,\, H_a: \theta > 0$ sign test with the test statistic $B = \sum_{i=1}^n{\psi_i}$ where $\psi_i = \mathbb{I}(Z_i > \theta)$...
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### How to interpret chart generated by gbm.perf function?

I'm new to GBM.Can you help me to understand the interpretation of gbm.perf function? I used following code in R best.iter = gbm.perf(train, method="cv") & got ...