From my previous email: "I tried str(eff) and class(eff), but I am not familiar with the structure of the object(s)."
--JJS ________________________________ From: Bert Gunter <bgunter.4...@gmail.com> Sent: Tuesday, March 17, 2020 2:22 PM To: Sparks, John <jspa...@uic.edu> Cc: r-help@r-project.org <r-help@r-project.org>; christoph.mol...@gmail.com <christoph.mol...@gmail.com> Subject: Re: [R] Get Data Table from iml FeatureEffect Object ?str Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Tue, Mar 17, 2020 at 12:19 PM Sparks, John <jspa...@uic.edu<mailto:jspa...@uic.edu>> wrote: Hi R-Helpers, I have recently started working with the iml package (Interpretable Machine Learning) and its associated material, which I generally find very helpful. I want to recover some values out of the FeatureEffect Object created by this library, but the form of the object is completely foreign to me. As a reproducible example: set.seed(42) library("iml") library("randomForest") data("Boston", package = "MASS") rf = randomForest(medv ~ ., data = Boston, ntree = 50) X = Boston[which(names(Boston) != "medv")] predictor = Predictor$new(rf, data = X, y = Boston$medv) imp = FeatureImp$new(predictor, loss = "mae") eff = FeatureEffect$new(predictor, feature = "rm") eff Interpretation method: FeatureEffect features: rm[numerical] grid size: 20 Analysed predictor: Prediction task: unknown Analysed data: Sampling from data.frame with 506 rows and 13 columns. Head of results: .ale .type rm 1 -2.150574 ale 3.561 2 -2.610528 ale 5.304 3 -2.338677 ale 5.593 4 -2.265673 ale 5.709 5 -2.142912 ale 5.837 6 -2.085899 ale 5.885 How can I refer to and get ahold of the table of 6 records above? I tried str(eff) and class(eff), but I am not familiar with the structure of the object(s). Would someone please tell me how to get inside the eff object, or point me to a reference as to what the class or structure of the object is? Thanks. --John Sparks [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org<mailto:R-help@r-project.org> mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
