Introduction Dataset Subset a dataset First or last observations Random sample of observations Based on row or column numbers Based on variable names Based on one or multiple criterion Create a new variable Transform a continuous variable into a c...

The working group of Statistics at Humboldt University of Berlin invites applications for one Postdoctoral research fellow (full-time employment, 3 years with extension possible) to contribute to the research on mathematical and statistical aspects of (Bayesian) learning approaches. The research positions are associated with the Emmy Noether group Regression Models beyond ...

We use Choropleth maps to show differences in colors or shading of pre-defined regions like states or countries, which correspond to differences in quantitative values like total rainfall, average temperature, economic indicators etc In our case we will use sales of a toy making company, as quantitative value, in different ...

New version of the ingredients package (v 0.5) was released on CRAN few days ago. Below I will show largest changes made in this version.The ingredients package is a part of DrWhy family of tools for model exploration and explanation. To make this pre...

A decisive step in the data science process is communicating the results of your analysis. As a data scientist, you are often tasked with presenting these results to people with little or no statistical background, making it important to be able to present the content clearly and understandably. It is ...

tl;dr: If you are impatient and want to go straight to the fun stuff, here is a link to the interactive web dashboard that I built to supplement this analysis. Best viewed on desktop PC. On a recent Monday afternoon that I would normally have spent...

I thought we would try to express why somebody interested in using the R language (and package ecosystem) for supervised machine learning, data wrangling, analytics projects, and other data science topics should give Practical Data Science with R, 2nd Edition a try. Nina Zumel and I shared the book with ...

The bSims R package is a highly scientific and utterly addictive bird point count simulator. Highly scientific, because it implements a spatially explicit mechanistic simulation that is based on statistical models widely used in bird point count analysis (i.e. removal models, distance sampling), and utterly addictive because the implementation ...

We’ve released the newest version of NIMBLE on CRAN and on our website. NIMBLE is a system for building and sharing analysis methods for statistical models, especially for hierarchical models and computationally-intensive methods (such as MCMC and SMC). Version 0.9.0 provides some new features as well as providing a variety ...

Introduction: This is the second article on data quality, for the first part, please go to: http://laranikalranalytics.blogspot.com/2019/11/using-r-and-h2o-isolation-forest-for.html Since Isolation Forest is building an ensemble of isolation trees, and these trees are created randomly, there is a lot of randomness in the isolation forest training, ...