Setup encrypted Rstudio and Shiny dashboard solution in 3 minutes

April 25, 2017
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Setup encrypted Rstudio and Shiny dashboard solution in 3 minutes

I have created a repository (https://github.com/56north/encrypted_dashboard) with code that automatically sets up Rstudio Server and Shiny Server behind and Nginx proxy with SSL certificates. The two servers share apps and packages so you can build cool stuff in Rstudio and deploy it immediately to Shiny. Woow!!! 😀 Below is the readme from the repo. I... Read more »

Rent Prices and TrelliscopeJS

April 24, 2017
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Rent Prices and TrelliscopeJS

Rent Prices are Soaring in Most of Colorado Call it gentrification, supply-and-demand, call it whatever you’d like… the fact is, rent prices have gone up in Colorado in the...

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R 3.4.0 is released – with new speed upgrades and bug-fixes

April 24, 2017
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R 3.4.0 is released – with new speed upgrades and bug-fixes

R 3.4.0 (codename “You Stupid Darkness”) was released 3 days ago. You can get the latest binaries version from here. (or the .tar.gz source code from here). The full list of bug fixes and...

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Data Science for Operational Excellence (Part-3)

April 24, 2017
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Data Science for Operational Excellence (Part-3)

Optimized transportation planning is a task usually left to the firm’s logistic department. However, it is often difficult to visualize, specially if there are many points involved in the...

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Order Type and Parameter Optimization in quantstrat

April 24, 2017
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Order Type and Parameter Optimization in quantstrat

In this post we look at stop-loss orders in quantstrat, and how to pick optimal parameters for a strategy.

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Choroplethr v3.6.1 is now on CRAN

April 24, 2017
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Choroplethr v3.6.1 is now on CRAN

Choroplethr version 3.6.1 is now on CRAN. This version makes it easier to Calculate the percent change in demographic datasets Visualize that percent change on a... The post Choroplethr...

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R 3.4.0 now available

April 24, 2017
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R 3.4.0, the latest release of the R programming language (codename: "You Stupid Darkness"), is now available. This is the annual major update to the R language engine, and...

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Online courses (in R, python, and data science) at Udemy for only $10 – until April 29th

April 24, 2017
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udemy-november-coupon-2015

In order to get the discount, simply click choose a link below and when paying use the promo code: 10APR303 Udemy is offering readers of R-bloggers access to its global online...

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errors 0.0.1

April 24, 2017
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In physics, engineering and other disciplines, a single number, a bare quantity, is useless, meaningless. When you measure something, your results will be within the precision of your equipment,...

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Building an R training environment

April 24, 2017
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Building an R training environment

I recently delivered a day of training at SQLBits and I really upped my game in terms of infrastructure for it. The resultant solution was super smooth and mitigated...

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NLP with AirBnb

April 23, 2017
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NLP with AirBnb

Basic NLP in R With text survey data about AirBnb R is a very powerful programming language with many great built in statistical functions and a The post

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Do Resampling Estimates Have Low Correlation to the Truth? The Answer May Shock You.

April 23, 2017
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Do Resampling Estimates Have Low Correlation to the Truth? The Answer May Shock You.

One criticism that is often leveled against using resampling methods (such as cross-validation) to measure model performance is that there is no correlation between the CV results and the...

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Hacking maps with ggplot2

April 23, 2017
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Hacking maps with ggplot2

This is a very short post on mapping with ggplot2.

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Experimental Design Exercises

April 23, 2017
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Experimental Design Exercises

In this set of exercises we shall follow the practice of conducting an experimental study. Researcher wants to see if there is any influence of working-out on body mass....

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Using R: a function that adds multiple ggplot2 layers

April 23, 2017
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Using R: a function that adds multiple ggplot2 layers

Another interesting thing that an R course participant identified: Sometimes one wants to make a function that returns multiple layers to be added to a ggplot2 plot. One could...

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A classical analysis (Radio Swiss classic program)

April 22, 2017
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A classical analysis (Radio Swiss classic program)

I am not a classical music expert at all, but I happen to have friends who are, and am even married to someone playing the cello (and the ukulele!)....

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Explaining complex machine learning models with LIME

April 22, 2017
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Explaining complex machine learning models with LIME

The classification decisions made by machine learning models are usually difficult - if not impossible - to understand by our human brains. The complexity of some of the most...

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R code to accompany Real-World Machine Learning (Chapter 6): Exploring NYC Taxi Data

April 22, 2017
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R code to accompany Real-World Machine Learning (Chapter 6): Exploring NYC Taxi Data

Abstract The rwml-R Github repo is updated with R code for exploratory data analysis of New York City taxi data from Chapter 6 of the book “Real-World Machine Learning” by...

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Shiny server series part 3: adding SSL encryption

April 22, 2017
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Shiny server series part 3: adding SSL encryption

This guide is part of a series on setting up your own private server running shiny apps. There are many guides with great advice on how to set up...

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Cartograms of New Zealand census data

April 22, 2017
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Cartograms of New Zealand census data

I’ve been trying to catch up with mapping functionality in R and its extended ecoverse, so might do a few posts on this in the next month or so....

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Using R as a GIS

April 22, 2017
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Using R as a GIS

In real estate, spatial data is the name of the game. Countless other domains utilize the power of this data, which is becoming more prevalent by the day. In...

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Does money buy happiness after all? Machine Learning with One Rule

April 22, 2017
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Does money buy happiness after all? Machine Learning with One Rule

This week, I am exploring Holger K. von Jouanne-Diedrich’s OneR package for machine learning. I am running an example analysis on world happiness data and compare the results with...

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Using MCA and variable clustering in R for insights in customer attrition

April 21, 2017
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Using MCA and variable clustering in R for insights in customer attrition

Analytical challenges in multivariate data analysis and predictive modeling include identifying redundant and irrelevant variables. A recommended analytics approach is to first address the redundancy; which can be achieved...

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Shuttering Pies With Retiring Stores

April 21, 2017
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Shuttering Pies With Retiring Stores

I caught this “gem” in the Wall Street Journal tonight: It’s pretty hard to compare store-to-store, even though it is fairly clear which ones are going-going-gone. If we want...

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Programming over R

April 21, 2017
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Programming over R

R is a very fluid language amenable to meta-programming, or alterations of the language itself. This has allowed the late user-driven introduction of a number of powerful features such...

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R Weekly Bulletin Vol – V

April 21, 2017
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R Weekly Bulletin Vol – V

This week’s R bulletin will cover topics like how to avoid for-loops, add or shorten an existing vector, and play a beep sound in R. We will also cover...

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Data science for Doctors: Cluster Analysis Exercises

April 21, 2017
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Data science for Doctors: Cluster Analysis Exercises

Data science enhances people’s decision making. Doctors and researchers are making critical decisions every day. Therefore, it is absolutely necessary for those people to have some basic knowledge of...

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Microeconomic Theory and Linear Regression (Part 2)

April 21, 2017
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Microeconomic Theory and Linear Regression (Part 2)

Introduction In the first part of this article I explained and compared four different functional forms to model apples' production. This is what I need to retake the previously explained...

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Reproducible Data Science with R

April 21, 2017
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Yesterday, I had the honour of presenting at The Data Science Conference in Chicago. My topic was Reproducible Data Science with R, and while the specific practices in the...

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