October 2019

Advancing Text Mining with R and quanteda

October 16, 2019 | R on Methods Bites

Everyone is talking about text analysis. Is it puzzling that this data source is so popular right now? Actually no. Most of our datasets rely on (hand-coded) textual information. Extracting, processing, and analyzing this oasis of information becomes increasingly relevant for a large variety of research fields. This Methods Bites ...
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Private Security and the Pareto Principle

October 15, 2019 | R | datawookie

Private Security is a big industry in South Africa. Most Private Security companies promise to provide a rapid response to every callout generated by any of their customers. There is a delicate balance between the number of response vehicles and the nu...
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Private Security and the Pareto Principle

October 15, 2019 | R on datawookie

Private Security is a big industry in South Africa. Most Private Security companies promise to provide a rapid response to every callout generated by any of their customers. There is a delicate balance between the number of response vehicles and the number of customers (and the frequency of their callouts!), ...
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Add custom summary statistics in ggplot2

October 15, 2019 | Posts | SERDAR KORUR

It is hard to understand your data by looking at the numbers on a csv file. You need to plot it. And adding statistics to your plots will make it more informative. To evaluate data, we typically use mean and median to define its central tendency and range, quartiles, variance ...
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New package: GetEdgarData

October 15, 2019 | R on msperlin

Introduction Every company traded in the US stock market must report its quarterly and yearly documents to the SEC and the public in general. This includes its accounting statements (10-K, 10-K) and any other corporate event that is relevant to investors. Edgar is the interface where we can search for ... [Read more...]

Easy introduction to Offensive Programming

October 15, 2019 | Neonira

Many of us are using R in a way or another and we all have to deal with R intrinsics and sometimes R weirdness. Standard R way Base package, append function Let’s look at a first example, using the very useful append function from base R. The f...
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Le Monde puzzle [#1114]

October 15, 2019 | xi'an

Another very low-key arithmetic problem as Le Monde current mathematical puzzle: 32761 is 181² and the difference of two cubes, which ones? And 181=9²+10², the sum of two consecutive integers. Is this a general rule, i.e. the root z of a perfect square that is the difference of two cubes is always ...
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upcoming AI-related courses

October 15, 2019 | Super User

I forgot to do some marketing for the following upcoming AI-related courses which will be given in Leuven, Belgium by BNOSAC 2019-10-17&18: Statistical Machine Learning with R: Subscribe here 2019-11-14&15: Text Mining with R: Subscribe here 2... [Read more...]

Parsing Sda Pages

October 15, 2019 | R on kieranhealy.org

SDA is a suite of software developed at Berkeley for the web-based analysis of survey data. The Berkeley SDA archive (http://sda.berkeley.edu) lets you run various kinds of analyses on a number of public datasets, such as the General Social Survey. It also provides consistently-formatted HTML versions of ... [Read more...]

Super Solutions for Shiny Apps #4 of 5: Using R6 Classes

October 15, 2019 | Marcin Dubel

TL;DR Why use object-oriented programming in Shiny applications? It’ll help organizize organize the code in your application!   Organize Your Shiny Code with Object-Oriented Programming Classes are used widely in all R programming — usually the S3 ones. Even if you’ve never heard of them, as an R user ...
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Could you be the next graduate Mango?

October 15, 2019 | Jen Wilkins

At Mango, we firmly believe that any decision can be better made using analytics and data. We also know that a company’s success is increasingly dependent on becoming data-driven. That’s where we come in. Our mission is to empower organisations to make informed decisions using data science and ... [Read more...]

Finding free science books from Springer

October 15, 2019 | Learning Machines

Today the biggest book fair of the world starts again in Frankfurt, Germany. I thought this might be a good opportunity to do you some good! Springer is one of the most renowned scientific publishing companies in the world. Normally, their books are quite expensive but also in the publishing ... [Read more...]

Merge MLP And CNN in Keras

October 14, 2019 | statcompute

In the post (https://statcompute.wordpress.com/2017/01/08/an-example-of-merge-layer-in-keras), it was shown how to build a merge-layer DNN by using the Keras Sequential model. In the example below, I tried to scratch a merge-layer DNN with the Keras functional API in both R and Python. In particular, the merge-layer DNN is ...
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Selection bias, death, and dying

October 14, 2019 | Keith Goldfeld

I am collaborating with a number of folks who think a lot about palliative or supportive care for people who are facing end-stage disease, such as advanced dementia, cancer, COPD, or congestive heart failure. A major concern for this population (which really includes just about everyone at some point) is ...
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