August 2017

Data Science for Water Utilities Using R

August 9, 2017 | Peter Prevos

Data Science for Water Utilities will be a new book that explains how to use R to undertake analytics for problems typical to water utilities. Continue reading → The post Data Science for Water Utilities Using R appeared first on The Devil is in the Data. [Read more...]

The Twitter Waterflow Problem

August 9, 2017 | Random R Ramblings

Introduction I was recently introduced to the Twitter Waterflow Problem and I decided it was interesting enough to try and complete the challenge in R. Consider the following picture: This plot shows a series of walls and empty valleys. We can represent this picture by an array of integers, where ...
[Read more...]

Data Science for Water Utilities Using R

August 9, 2017 | Peter Prevos

Data Science for Water Utilities will be a new book that explains how to use R to undertake analytics for problems typical to water utilities. Continue reading → The post Data Science for Water Utilities Using R appeared first on The Devil is in the Data.
[Read more...]

sequence riddle

August 9, 2017 | xi'an

The riddle this week on The Riddler was about finding the largest sequence of integers between 1 and 100 such that each integer is only used once and always followed by a multiple or a factor. A basic R code searching at random [and programmed during a massive downpour on Skye] led ...
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Tutorial: Deep Learning with R on Azure with Keras and CNTK

August 9, 2017 | Guest Blogger

by Le Zhang (Data Scientist, Microsoft) and Graham Williams (Director of Data Science, Microsoft) Microsoft's Cognitive Toolkit (better known as CNTK) is a commercial-grade and open-source framework for deep learning tasks. At present CNTK does not have a native R interface but can be accessed through Keras, a high-level API ... [Read more...]

Trump’s Android and iPhone tweets, one year later

August 9, 2017 | David Robinson

A year ago today, I wrote up a blog post Text analysis of Trump’s tweets confirms he writes only the (angrier) Android half. My analysis, shown below, concludes that the Android and iPhone tweets are clearly from different people, posting during different times of day and using hashtags, links, ... [Read more...]

NYC Airbnb Insights

August 8, 2017 | Yu-Han Chen

Motivation “Hey, Yu-Han. I am going to Time Square to celebrate New Year this December. Do you have any recommendation about hotels or short-term rentals?” Once […] The post NYC Airbnb Insights appeared first on NYC Data Science Academy Blog. [Read more...]

Portfolio Volatility Shiny App

August 8, 2017 | R Views

In our 3 previous posts, we walked through how to calculate portfolio volatility, then how to calculate rolling volatility, and then how to visualize rolling volatility. Today, we will wrap all of that work into a Shiny app that allows a user to construct his or her own five-asset portfolio, choose ... [Read more...]

Soccer data sparring: Scraping, merging and analyzing exercises

August 8, 2017 | sindri

While understanding and spending time improving specific techniques, and strengthening indvidual muscles is important, occasionally it is necessary to do some rounds of actual sparring to see your flow and spot weaknesses. This exercise sets forces you to use all that you have practiced: to scrape links, download data, regular ... [Read more...]

Unconf 2017: The Roads Not Taken

August 8, 2017 | Noam Ross

Since June, we have been highlighting the many projects that emerged from this year's rOpenSci Unconf. These projects start many weeks before unconf participants gather in-person. Each year, we ask participants to propose and discuss project ideas ahead of time in a GitHub repo. This serves to get creative juices ... [Read more...]
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