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]]
?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 <jspark4 at 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 at 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]]
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.4567 at gmail.com> Sent: Tuesday, March 17, 2020 2:22 PM To: Sparks, John <jspark4 at uic.edu> Cc: r-help at r-project.org <r-help at r-project.org>; christoph.molnar at gmail.com <christoph.molnar at 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 <jspark4 at uic.edu<mailto:jspark4 at 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 at r-project.org<mailto:R-help at 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]]
that is, read ?str carefully. data structures are fundamental to any programming language, so if you really aren't getting it, that's a signal that you need to spend some time with R tutorials. The R language Definition manual is a more comprehensive but of course more difficult resource to learn about such matters. I find it readable, however. Others may not. 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 12:22 PM Bert Gunter <bgunter.4567 at gmail.com> wrote:> ?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 <jspark4 at 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 at 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]]