June 2018

The dependencies conundrum

June 5, 2018 | Colin Fay

A little dive into CRAN package dependencies. What is a dependencies? Roughly, a dependencie is a package needed by another package to work: in other words, if someone has already coded a function that you need, you can use it by listing another pack...
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Simple audio classification with Keras

June 5, 2018 | Daniel Falbel

Introduction In this tutorial we will build a deep learning model to classify words. We will use tfdatasets to handle data IO and pre-processing, and Keras to build and train the model. We will use the Speech Commands dataset which consists of 65.000 one-second audio files of people saying 30 different words. ...
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CHAID and caret – a good combo – June 6, 2018

June 5, 2018 | Chuck Powell

In an earlier post I focused on an in depth visit with CHAID (Chi-square automatic interaction detection). There are lots of tools that can help you predict an outcome, or classify, but CHAID is especially good at helping you explain to any audience how the model arrives at it’s ... [Read more...]

A Neural Network learns to talk like Michael Scott

June 5, 2018 | Riki Saito

(Read Time: ~5-6 minutes. Image from tumblr.com) I want to start off this post by saying that this post was made possible thanks to Max Woolf (Twitter: @minimaxir) and his Python package textgenrnn, a text generating recurrent neural network that, when trained, can predict the next character (or word) ... [Read more...]

Classification from scratch, neural nets 6/8

June 5, 2018 | arthur charpentier

Sixth post of our series on classification from scratch. The latest one was on the lasso regression, which was still based on a logistic regression model, assuming that the variable of interest has a Bernoulli distribution. From now on, we will discuss technique that did not originate from those probabilistic ...
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Animating Changes in Football Kits using R

June 4, 2018 | R-bloggers on Guy Abel

Background I’m loving the magick package at the moment. Reading through the vignette I spotted the image_morph() function. In this post I experiment with the function to build the GIF below that shows the changes in the England football first kit over time, using images from the excellent ... [Read more...]

Monte Carlo

June 4, 2018 | R Views

Today, we change gears from our previous work on Fama French and run a Monte Carlo (MC) simulation of future portfolio returns. Monte Carlo relies on repeated, random sampling. We will sample based on two parameters: mean and standard deviation of portfolio returns. Our long-term goal (long-term == over the next ...
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epubr 0.4.0 CRAN release

June 4, 2018 | R on Matthew Leonawicz | Blog

The epubr package provides functions supporting the reading and parsing of internal e-book content from EPUB files. E-book metadata and text content are parsed separately and joined together in a tidy, nested tibble data frame. E-book formatting is non... [Read more...]

Animating Changes in Football Kits using R

June 4, 2018 | R-bloggers on Guy Abel

Background I am enjoying the magick package at the moment. Reading through the vignette I spotted the image_morph() function. In this post I experiment with the function to build the GIF below that shows the changes in the England football first kit over time, using images from the excellent ... [Read more...]

The First Date with your Data in R

June 3, 2018 | John

The First Date with your Data in R So you have your data, now what? With a little R code, you can quickly get to [...] The post The First Date with your Data in R appeared first on ProgrammingR. [Read more...]
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