Blog Archives

Visualising Model Response with easyalluvial

April 9, 2019
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Visualising Model Response with easyalluvial

In this tutorial I want to show how you can use alluvial plots to visualise model response in up to 4 dimensions. easyalluvial generates an artificial data space using fixed values for unplotted variables or uses the partial dependence plotting method. It is model agnostic but offers some convenient wrappers for caret models. Introduction Taking a peek When building machine learning...

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Easyalluvial 0.2.0 released

March 31, 2019
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Easyalluvial 0.2.0 released

easyalluvial allows you to build exploratory alluvial plots (sankey diagrams) with a single line of code while automatically binning numerical variables. In version 0.2.0 marginal histograms improve the visibility of those numerical variables. Further a method has been added that creates model agnostic 4 dimensional partial dependence alluvial plots to visualise the response of statistical models. Introduction I am happy to...

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Visualising Model Response with easyalluvial

March 28, 2019
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Visualising Model Response with easyalluvial

In this tutorial I want to show how you can use alluvial plots to visualise model response in up to 4 dimensions. easyalluvial generates artificial data space using fixed values for unplotted variables or uses the partial dependence plotting method. It is model agnostic but offers some convenient wrappers for caret models. Introduction Taking a peek When building machine learning model...

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Tidymodels

December 28, 2018
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Tidymodels

Introduction Packages CRAN availability of tidymodels packages: Unified Modelling Syntax Statistical Tests and Model Selection Resampling, Feature Engineering and Performance Metrics Modeling Data Response Variable lstat Correlations lstat vs categorical variables Preprocessing with recipe Summary Recipe Resampling with rsample Modelling with caret Wrapper Apply Wrapper Assess Performance with yardstick Parameters as string Get best performing model for each method Get cv-performance Get 1SE stats Plot Introduction RStudio is expanding the tidyverse principles to modelling with R and...

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Data exploration with alluvial plots – An introduction to easyalluvial

October 30, 2018
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Data exploration with alluvial plots – An introduction to easyalluvial

Introduction easyalluvial Features Install Wide Format Sample data alluvial_wide() Long Format Sample Data alluvial_long() General Missing Data Colors Connect Flows to observations in original data ggplot2 manipulations Introduction Alluvial plots are a form of sankey diagrams that are a great tool for exploring categorical data. They group categorical data into flows that can easily be traced in the diagram. Other than sankey diagrams they are constrained to x-y dimensions,...

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Joyplot Logo

August 2, 2018
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Joyplot Logo

Welcome to my data science blog datistics where I will gradually post all the vignettes and programming POC’s that I have written over the past two years. Most of them can be already found in my github repository. I am using blogdown to create this blog and using R and RStudio. However I have...

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