Principal Component Analysis in R

January 23, 2017
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Principal Component Analysis in R

Principal component analysis (PCA) is routinely employed on a wide range of problems. From the detection of outliers to predictive modeling, PCA has the ability of projecting the observations described by variables into few orthogonal components defined at where the data ‘stretch’ the most, rendering a simplified overview. PCA is particularly powerful in dealing with multicollinearity and variables that … Continue...

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Choosing Software to Publish your Data Science Portfolio

January 23, 2017
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Choosing Software to Publish your Data Science Portfolio

I’ve recently spoken to several people who Have decided to create a portfolio of their data science projects Are new to online publishing They frequently have... The post Choosing...

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Trumpworld Analysis : Ownership Relations in his Business Network

January 23, 2017
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Trumpworld Analysis : Ownership Relations in his Business Network

Analysis of the ownership relationships between organisations associated with Donald J. Trump. A social network analysis of Trumpland using the igraph package in R. Continue reading → The...

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Input/output benchmarks

January 22, 2017
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Input/output benchmarks

To quantify the impact of the CPU on an analysis, I created the package benchmarkme. The idea is simple. If everyone runs the same R script, we can easily compare...

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Bioinformatics Tutorial with Exercises in R (part 1)

January 22, 2017
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Bioinformatics Tutorial with Exercises in R (part 1)

Bioinformatics is an interdisciplinary field of study that combines the field of biology with computer science to understand biological data. Bioinformatics is generally used in laboratories as an initial...

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Women in the 2016 Stack Overflow Survey

January 22, 2017
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Women in the 2016 Stack Overflow Survey

Note: Cross-posted with the Stack Overflow blog The 2017 Stack Overflow Developer Survey opened last week, and we on the Data Team are looking forward to analyzing the survey results...

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Welcome to R-bloggers!

January 22, 2017
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Welcome to R-bloggers!

Tal Galili, empowering bloggers to empower other R users - Hooray! I am now part of the R-bloggers community! R-bloggers is a blog aggregator for content created by...

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RcmdrPlugin.KMggplot2_0.2-4 is on CRAN

January 21, 2017
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RcmdrPlugin.KMggplot2_0.2-4 is on CRAN

RcmdrPlugin.KMggplot2 v0.2-4 (an Rcmdr plug-in; a GUI for 'ggplot2') was released on Dec. 20, 2016. RcmdrPlugin.KMggplot2 (CRAN) NEWS Changes in version 0.2-4 (2016-12-20) ggplot2 2.2.0 was supported. Added ggplot2's...

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Implementation of a basic reproducible data analysis workflow

In a previous post, I described the principles of my basic reproducible data analysis workflow. Today, let’s be more practical and see how to implement it. Be noted that it...

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Visualizing "The Best"

January 20, 2017
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Visualizing "The Best"

How do you measure “The Best”? It’s not immediately clear. Because, “The Best” is incredibly vague and subjective. My “Best” is not the same as your “Best”. And our “Best”s...

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Finding antipodes using the globe and ggmap packages

January 20, 2017
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Finding antipodes using the globe and ggmap packages

The antipode of any place on Earth is the point on the Earth's surface that is diametrically opposite to it. How can you use ggmap to find antipodes? ...

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Knoxville, TN: R for Text Analysis Workshop

January 19, 2017
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Knoxville, TN: R for Text Analysis Workshop

The Knoxville R Users Group is presenting a workshop on text analysis using R by Bob Muenchen. The workshop is free and open to the public. You can join...

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Principal Component Analysis

January 19, 2017
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Principal Component Analysis

Often, it is not helpful or informative to only look at all the variables in a dataset for correlations or covariances. A preferable approach is to derive new variables...

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IMDB Movie Analysis

January 19, 2017
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IMDB Movie Analysis

Movies of late haven’t impressed (this viewer anyhow) and I keep finding myself returning to classics of the 1980’s and 1990’s to get my movie fix. While browsing through...

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Plotly : Advanced plots and features

January 19, 2017
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Plotly : Advanced plots and features

Plotly is a d3 based graphing library used to produce interactive and high quality graphs in R. In the following exercises, we will look at some advanced plots and...

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A basic reproducible data analysis workflow – principles

The goal of reproducible data analysis is, according to the CRAN task view, to tie specific instructions to data analysis and experimental data so that scholarship can be recreated,...

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weakly informative reparameterisations for location-scale mixtures

January 18, 2017
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weakly informative reparameterisations for location-scale mixtures

We have been working towards a revision of our reparameterisation paper for quite a while now and too advantage of Kate Lee visiting Paris this fortnight to make a...

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Diversity in the R Community

January 18, 2017
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Diversity in the R Community

In the follow-up to the useR! conference in Stanford last year, the Women in R Task force took the opportunity to survey the 900-or-so participants about their backgrounds, experiences...

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Euler Problem 8: Largest Product in a Series

January 18, 2017
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Euler Problem 8: Largest Product in a Series

Solution to Euler Problem 8 in the R Language for Statistical Computing. Find the thirteen adjacent digits in the 1,000-digit number that have the greatest product. What is the...

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The Genetic Map Comparator: a user-friendly application to display and compare genetic maps

January 18, 2017
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The Genetic Map Comparator: a user-friendly application to display and compare genetic maps

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Two new online R courses on time series (via DataCamp)

January 18, 2017
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shield_image_course_1143_20161219-28-40ljf5

DataCamp recently launched two new online R courses on time series analysis. Introduction to Time Series Analysis What You’ll Learn: Chapter One: Exploratory Time Series Data Analysis (FREE) Learn how...

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Reproducible Finance with R: Sector Correlations

January 18, 2017
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by Jonathan Regenstein Welcome to the first installation of reproducible finance for 2017. It’s a new year, a new President takes office soon, and we could be entering a...

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GitHub Growth Appears Scale Free

January 18, 2017
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GitHub Growth Appears Scale Free

In 2013, a blogger claimed that the growth of GitHub (GH) users follows a certain type of diffusion model called Bass diffusion. Growth here refers to...

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Workout Wednesday Redux (2017 Week 3)

January 18, 2017
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Workout Wednesday Redux (2017 Week 3)

I had started a “52 Vis” initiative back in 2016 to encourage folks to get practice making visualizations since that’s the only way to get better at virtually anything....

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Elements of a successful #openscience #rstats workshop

January 18, 2017
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Elements of a successful #openscience #rstats workshop

What makes an open science workshop effective or successful*? Over the last 15 years, I have had the good fortune to participate in workshops as a student and sometimes...

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RProtoBuf 0.4.8: Windows support for proto3

January 17, 2017
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Issue ticket #20 demonstrated that we had not yet set up Windows for version 3 of Google Protocol Buffers ("Protobuf") -- while the other platforms support it....

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Introducing padr

January 17, 2017
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Introducing padr

I am happy to introduce the padr package, which is now available on CRAN. If you frequently work with data containing a timestamp, especially automatically created data, you might...

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ggedit 0.0.2: a GUI for advanced editing of ggplot2 objects

January 17, 2017
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ggedit 0.0.2: a GUI for advanced editing of ggplot2 objects

Guest post by Jonathan Sidi, Metrum Research Group Last week the updated version of ggedit was presented in RStudio::conf2017. First, a BIG thank you to the whole RStudio team...

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Regression model with auto correlated errors – Part 3, some astrology

January 17, 2017
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Regression model with auto correlated errors – Part 3, some astrology

The results of the study are interesting from an astrological point of view. Astrological signs are divided into groups by order. The first grouping is by alternating order, with...

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