simmer 4.0.0

July 21, 2018
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The 4.0.0 release of simmer, the Discrete-Event Simulator for R, is on CRAN under a new license: we decided to switch to GPL __= 2. Most notably in this major release, the C++ core has been refactorised and exposed under inst/include. This is not a big deal for most users, but it enables extensions. As an example… Continuar leyendo simmer 4.0.0...

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RStudio:addins part 4 – Unit testing coverage investigation and improvement, made easy

July 21, 2018
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RStudio:addins part 4 – Unit testing coverage investigation and improvement, made easy

Introduction A developer always pays his technical debts! And we have a debt to pay to the gods of coding best practices, as we did not present many unit tests...

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MiKTeX Behind a Windows Firewall

July 20, 2018
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MiKTeX Behind a Windows Firewall

I’ve always had problems with MiKTeX on my work computer. I can install it just fine, or get IT to install it, but then the package manager doesn’t work...

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R.devices – Into the Void

July 20, 2018
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R.devices – Into the Void

R.devices 2.16.0 - Unified Handling of Graphics Devices - is on CRAN. With this release, you can now easily suppress unwanted graphics, e.g. graphics produced by one of...

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Regional population structures at a glance

July 20, 2018
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Regional population structures at a glance

I am happy to announce that our paper is published today in The Lancet. Kashnitsky, I., & Schöley, J. (2018). Regional population structures at a glance. The Lancet,...

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A hex sticker wall, created with R

July 20, 2018
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Bill Venables, member of the R Foundation, co-author of the Introduction to R manual, R package developer, and one of the smartest and nicest (a rare combo!) people you...

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A new ‘boto3’ Amazon Athena client wrapper with dplyr async query support

July 20, 2018
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A previous post explored how to deal with Amazon Athena queries asynchronously. The function presented is a beast, though it is on purpose (to provide options for folks). In...

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R trainings and data science talks in Stuttgart: save 10% with our summer special

July 20, 2018
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R trainings and data science talks in Stuttgart: save 10% with our summer special

Summer holidays are over and work is calling. We will get you back on track by bringing you our popular R trainings and data science talks to the South...

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Benchmarking Feature Selection Algorithms with Xy()

July 20, 2018
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Benchmarking Feature Selection Algorithms with Xy()

Feature Selection Feature Selection is one of the most interesting fields in machine learning in my opinion. It is a boundary point of two different perspectives on machine learning...

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CVXR: A Direct Standardization Example

July 19, 2018
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CVXR: A Direct Standardization Example

In our first blog post, we introduced CVXR, an R package for disciplined convex optimization, and showed how to model and solve a non-negative least squares problem using its...

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Whether to use a data frame in R?

July 19, 2018
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In this post, I try to show you in which situations using a data frame is appropriate, and in which it’s not. Learn more with the Advanced R book....

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Explaining Black-Box Machine Learning Models – Code Part 1: tabular data + caret + iml

July 19, 2018
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Explaining Black-Box Machine Learning Models – Code Part 1: tabular data + caret + iml

This is code that will accompany an article that will appear in a special edition of a German IT magazine. The article is about explaining black-box machine learning models....

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The end of errors in ANOVA reporting

July 19, 2018
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Fit an anova APA formatted output Correlations, t-tests, regressions… Evolution Credits On similar topics Psychology is still (unfortunately) massively using analysis of variance (ANOVA). Despite...

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2018-07 Echoes of the Future

July 19, 2018
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This report discusses ways to combine graphics output from the ‘graphics’ package and the ‘grid’ package in R and introduces a new function echoGrob in ...

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Le Monde puzzle [#1061]

July 19, 2018
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Le Monde puzzle [#1061]

A griddy Le Monde mathematical puzzle: On a 4×5 regular grid, find how many nodes need to be turned on to see all 3×4 squares to have at least...

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How to Read an Excel file into R

July 19, 2018
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Installing R package Because flipAPI does not require external libraries that use Java or Perl, installation is very straightforward. Simply open R and type the...

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Automated Text Feature Engineering using textfeatures in R

July 19, 2018
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Automated Text Feature Engineering using textfeatures in R

It could be the era of Deep Learning where it really doesn’t matter how big is your dataset or how many columns you’ve got. Still, a lot of Kaggle...

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EARL US Roadshow 2018 – agenda announced

July 19, 2018
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We are delighted to announce that the full EARL US Roadshow agendas are now available! Each city has a different line-up of world-class speakers and R experts for you...

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Basic Generalised Linear Modelling – Part 1: Exercises

July 18, 2018
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A generalized linear model (GLM) is a flexible generalization of an ordinary linear regression that allows for response variables that have error distribution models other than a normal distribution....

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nanotime 0.2.2

July 18, 2018
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A new maintenance release of the nanotime package for working with nanosecond timestamps just arrived on CRAN. nanotime uses the RcppCCTZ package for (efficient) high(er) resolution time parsing and formatting...

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Call Centre Workforce Planning Using Erlang C in R language

July 18, 2018
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Call Centre Workforce Planning Using Erlang C in R language

We all hate the experience of calling a service provider and being placed on hold for a very long time. Organisations that take their level of service seriously plan...

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Call Centre Workforce Planning Using Erlang C in R language

July 18, 2018
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Call Centre Workforce Planning Using Erlang C in R language

We all hate the experience of calling a service provider and being placed on hold for a very long time. Organisations that take their level of service seriously plan...

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Amazon Alexa and Accented English

July 18, 2018
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Amazon Alexa and Accented English

Earlier this spring, one of my data science friends here in SLC got in contact with me about some fun analysis. My friend Dylan Zwick is a founder at...

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Randomize by, or within, cluster?

July 18, 2018
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Randomize by, or within, cluster?

I am involved with a stepped-wedge designed study that is exploring whether we can improve care for patients with end-stage disease who show up in the emergency room. The...

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Highlights from the useR! 2018 conference in Brisbane

July 18, 2018
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he fourteenth annual worldwide R user conference, useR!2018, was held last week in Brisbane, Australia and it was an outstanding success. The conference attracted around 600 users from around...

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Machine Learning Results in R: one plot to rule them all!

July 18, 2018
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Machine Learning Results in R: one plot to rule them all!

To automate the process of modeling selection and evaluate the results with visualization, I have created some functions into my personal library and today I’m sharing the codes with...

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Press Release: Business Science Partners With Method Data Science To Accelerate Your Data Science Career

Press Release: Business Science Partners With Method Data Science To Accelerate Your Data Science Career

The goal is simple: to educate and empower future data scientists so they can help organizations gain data-driven results. This is why it was a no-brainer when the opportunity...

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Just use a scatterplot. Also, Sydney sprawls.

July 17, 2018
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Just use a scatterplot. Also, Sydney sprawls.

Sydney’s congestion at ‘tipping point’ blares the headline and to illustrate, an interactive chart with bars for city population densities, points for commute times and of course, dual-axes. Yuck....

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Monte Carlo Shiny: Part Three

July 17, 2018
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Monte Carlo Shiny: Part Three

In previous posts, we covered how to run a Monte Carlo simulation and how to visualize the results. Today, we will wrap that work into a Shiny app wherein...

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