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Questions tagged [dalex]

22 questions
8
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1 answer

Create SHAP plots for tidymodel objects

This question refers to Obtaining summary shap plot for catboost model with tidymodels in R. Given the comment below the question, the OP found a solution but did not share it with the community so far. I want to analyze my tree ensembles fitted…
mugdi
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1 answer

How do I extract a model fit from a tidymodels workflowset?

I am trying to learn tidymodels and DALEXtra.... I have successfully built a set of models with workflow_map: grid_results <- all_workflows %>% workflow_map( seed = 1503, resamples = the_folds, grid = 100, control =…
itsMeInMiami
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SHAP values for Prophet / time series data

I would like to utilize shap values for multivariate time series data and models like prophet. from prophet import Prophet ph = Prophet() for column in time_series_df.drop(columns = ['y', 'ds'], inplace = False).columns: …
Bara
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1 answer

Why do DALEX and tidymodels provide different GOF?

I wonder why DALEX model_performance and collect_metrics do not provide the same accuracy. Do they use different measures or different methods? I've compiled the following example…
S Front
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1 answer

Overcoming compatibility issues with using iml from h2o models

I am unable to reproduce the only example I can find of using h2o with iml (https://www.r-bloggers.com/2018/08/iml-and-h2o-machine-learning-model-interpretability-and-feature-explanation/) as detailed here (Error when extracting variable importance…
user1809593
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How to find the important variable for every prediction in R XGboost

I am applying xgboost to the below data set and getting prediction, I am also able to get the most important feature for the over all model, However I would also like to know for every prediction which are the most important features, I am able to…
Dexter1611
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How to make tidymodels or workflow results work with DALEX explain?

I want to use modelStudio and for that I need to make explainer using DALEX::explain() that takes model object as an argument. I should, but I am not sure how to provide the entire reproducible example code with data here! When I use the following…
Geet
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1 answer

tidymodels: loss_accuracy provides no variable importance results

Using the iris dataset, a knn-classifier was tuned with iterative search for multiple classification. However, using loss accuracy in DALEX::model_parts() for variable importance, provides empty results. I would appreciate any ideas. Thank you so…
bioblackgeorge
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1 answer

DALEX and step_pca

I would like to look at the compound feature importance of the principal components with DALEX model_parts but I am also interested to what extent the results are driven by variation in a specific variable in this principal component. I can look at…
S Front
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Factor Variable Importance (VIMP) with RandomForestSRC Package: cannot coerce to data.frame error

Good afternoon, all--thank you in advance for your help! I'm somewhat new to R, so my apologies if this is a trivial or otherwise inappropriate question. TL;DR: I'm trying to determine Variable Importance (VIM) for factor variables with a random…
Drew Zinder
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1 answer

DALEX error when trying to explain iris random forest model

I want to create explanator with Dalex of RandomForest model, but when trying I got this error: Error: $ operator is invalid for atomic vectors Anyone knows how to solve this issue? Here my code: library(DALEX) library(ranger) model <-…
jff
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Applying DALEX explain function to an xgboost model for what_if / centerisParibus analysis

I am having difficulty trying to apply what_if analysis to an xgboost model. I am able to run the what_if analysis for a randomForest model however it breaks when I try to run it for the xgboost model. My question is, given the titanic dataset how…
user113156
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How can i save to csv file about Variable importance using DALEX package, model_part() with python

enter image description here I want to extract the feature importance using DALEX package, but i don't know how to export the results to save that results with format excel file how should i do? i did below method, but it didn't…
jihye park
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DALEX does not display plot in jupyter notebook (python)

I am using the trying to follow the DALEX tutorial for Python described here: https://ema.drwhy.ai/UseCaseFIFA.html My code does not have any errors, but when I run any dalex object .plot(), there is no plot, just a large patch of white space. Is…
potato_bagel
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Different Partial Dependence Plot (PDP) depending on using either pdp-package or DALEX-package

I can't figure out why I'm having two different PDPs depending on whether I'm using pdp-package or DALEX-package. I initially wanted to make PDPs using tidymodels in combination with pdp and DALEX, but neither combination seemed to work easily. Then…
PeRiKo
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