2019

Chi-Square and the Egon Pearson correction

September 5, 2019 | Thom

Looking back at the coverage of the Chi-Square test of independence in the book there are a couple of things I wish I’d gone into greater depth on. First, resolving the debate on the appropriate way to handle small expected values in the test of independence. Second, expanding on ... [Read more...]

CSS Enhances R Shiny; SASS Enhances CSS

September 5, 2019 | Joseph Cha

CSS is older than the hills, almost as old as HTML itself, but it provides dramatic improvements in style and sanity in your R Shiny applications. And it will save you time! In this post I’ll give you a quick overview of CSS; I’ll show you how to ...
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Gold-Mining Week 1 (2019)

September 4, 2019 | Michael Griebe

Welcome to the 2019 Fantasy Football Season! Week 1 Gold Mining and Fantasy Football Projection Roundup now available. The post Gold-Mining Week 1 (2019) appeared first on Fantasy Football Analytics. [Read more...]

Advanced Data Reshaping in Python and R

September 4, 2019 | John Mount

This note is a simple data wrangling example worked using both the Python data_algebra package and the R cdata package. Both of these packages make data wrangling easy through he use of coordinatized data concepts (relying heavily on Codd’s “rule of access”). The advantages of data_algebra and ... [Read more...]

R or Python

September 4, 2019 | Fran Peric

Data Science beginners often encounter the same question: which programming language should one learn first? The choice usually falls on one of the two major providers, R or Python. With this blog article, we want to help you with the search for the right programming language for you. Der Beitrag ...
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How to do Tamil Text Analysis & NLP in R

September 3, 2019 | AbdulMajedRaja RS

udpipe is a beautiful R package for Text Analytics and NLP and helps in Topic Extraction. While most Text Analytics resources online are only about English, This post picks up a different lanugage - Tamil and fortuntely, udpipe has got a Tamil Language Model. Loading
library(udpipe)
Tamil Text Below is ...
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How to Send Custom E-mails with R

September 3, 2019 | R Views

A common business oriented data science task is to programatically craft and send custom emails. In this post, I will show how to accomplish this with R on the RStudio Connect platform (a paid product built for the enterprise) using the blastula package.blastula provides a set of functions for ...
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Meet T3 – Tychobra Time Tracker

September 3, 2019 | Posts on Tychobra

Raison d’être At Tychobra, like many consulting businesses, we have multiple projects for multiple clients being worked on by multiple developers. To keep everything tracked to double precision, and because we love the taste of dog food, we built o...
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New RStudio addins for network analysis

September 3, 2019 | schochastics

A new version of the snahelper package is now available on CRAN. If you do not now the package: So far, it included one RStudio addin that provided a GUI to analyze and visualize networks. Check out the introductory post for more details. This major... [Read more...]

Grids and graticules in the tmap package

September 3, 2019 | the Geocomputation with R website

This vignette builds on the making maps chapter of the Geocomputation with R book. Its goal is to demonstrate how to set and modify grids and graticules in the tmap package. Prerequisites The examples below assume the following packages are attached:
library(spData) # example datasets
library(tmap)   # map creation (>=2.3)
library(sf)     # spatial data classes
Grids and graticules The tmap package offers two ...
[Read more...]

Le Monde puzzle [#1109]

September 3, 2019 | xi'an

A digital problem as Le Monde current mathematical puzzle: Noble numbers are such that they only involve different digits and are multiple of all their digits. What is the largest noble number? Hmmmm…. Brute force? Since the maximal number of digits is 10, one may as well try: k=soz=9 for (...
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