Monthly Archives: June 2018

Analyzing voter survey data with R

June 29, 2018
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Analyzing voter survey data with R

I love polls. All kinds of polls, but especially political polls. I think I love them because I like politics and I also like to find out what’s going on in people’s heads, which is something that survey data allows one to do.So I was thrilled to find Anthony Joseph Damico’s Analyze Survey Data for The post Analyzing voter...

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R and Data – When Should we Use Relational Databases?

June 29, 2018
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Are you wondering if you need to use a database in your Machine Learning projects? Read on and find out .. The post R and Data – When Should we Use Relational Databases? appeared first on Claude Seidman - The Data Guy.

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modelDown: a website generator for your predictive models

June 29, 2018
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modelDown: a website generator for your predictive models

I love the pkgdown package. With a single line of code you can create a complete website with examples, vignettes and documentation for your package. Brilliant! So what about a website generator for predictive models? Imagine that you can take a set of predictive models (generated with caret, mlr, glm, xgboost or randomForest, anything) and … Czytaj dalej modelDown:...

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Benchmarking a SSD drive in reading and writing files with R

June 29, 2018
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Benchmarking a SSD drive in reading and writing files with R

- I recently bought a new computer for home and it came with two drives, one HDD and other SSD. The later is used for the OS and the former for all of my files. From all computers I had, both home and work, this is definitely the fastest. While some of...

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Comparing predictions: World Cup scores

June 29, 2018
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Comparing predictions: World Cup scores

As many others too, me and some colleges at STATWORX took part in a little betting game for the World Cup 2018. Since the group stage is over, I was wondering how well – or better – how worse my prediction was. I am comparing my result with other predictions by using the point system of the betting game....

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Benchmarking a SSD drive in reading and writing files with R

June 28, 2018
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Benchmarking a SSD drive in reading and writing files with R

I recently bought a new computer for home and it came with two drives, one HDD and other SSD. The later is used for the OS and the former stores all of my personal files. From all computers I had, both home and work, this is definitely the fastest. While some of the merits are due to the newer...

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Code for Workshop: Introduction to Machine Learning with R

June 28, 2018
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Code for Workshop: Introduction to Machine Learning with R

These are the slides from my workshop: Introduction to Machine Learning with R which I gave at the University of Heidelberg, Germany on June 28th 2018. The entire code accompanying the workshop can be found below the video. The workshop covered the basics of machine learning. With an example dataset I went through a standard machine learning workflow in R...

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Addendum: Text-to-Speech with the googleLanguageR package

June 28, 2018
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After posting my short blog post about Text-to-speech with R, I got two very useful tips. One was to use the googleLanguageR package, which uses the Google Cloud Text-to-Speech API. And indeed, it was very easy to use and the resulting audio sounded much better than what I tried before! Here’s a short example of how to use the package for...

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Visualize the World Cup with R! Part 1: Recreating Goals with ggsoccer and ggplot2

June 28, 2018
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Visualize the World Cup with R! Part 1: Recreating Goals with ggsoccer and ggplot2

After posting a couple of my World Cup viz on Twitter, I thought I’ll collate some of them into a blog post. This will be Part 1 of a series as the World Cup goes on and I keep...

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Beeswarms instead of histograms

June 28, 2018
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Beeswarms instead of histograms

Histograms are good, density plots are also good. Violin and bean plots too. Recently I had someone ask for a plot where you could see each individual point along a continuum, give the points specific colours based on a second variable (similar to the figure), which deviates somewhat from the typical density type plots. Apparently,

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