550 search results for "register"

Using Arial in R figures destined for PLOS ONE

September 9, 2013
By

Despite the refreshing change that the journal PLOS ONE represents in terms of open access and an refreshing change to the stupidity that is quality/novelty selection by the two or three people that review a paper, it’s submission requirements are far less progressive. Yes they make you jump through a lot of hoops getting your figures and...

Read more »

The Problem with Percentiles

September 8, 2013
By
The Problem with Percentiles

The Problem with Percentiles Percentiles (or, more accurately, quantiles) are deeply embedded in the psyche of actuaries, statisticians and similar beasts. They are referred to implicitly in the Solvency 2 directive (Article 100, Value at Risk) without explanation. They are so ingrained...

Read more »

New Bio7 1.7.1 Release with Improved R Plot Image Display

September 6, 2013
By
New Bio7 1.7.1 Release with Improved R Plot Image Display

05.09.2013 I released a new Windows version of Bio7. This release improves the general R plot functionality of Bio7. The default image plots are now displayed in a Image stack if more than one plot command is executed. In this way all plots are automatically openend and not only the last image plot. Multiple plots

Read more »

Sentiment Analysis on Twitter with Viralheat API

September 2, 2013
By
Sentiment Analysis on Twitter with Viralheat API

Hi there! Some time ago I published a post about doing a sentiment analysis on Twitter. I used two wordlists to do so; one with positive and one with negative words. For the first try of a sentiment analysis it is surely a good way to start but if you want to receive more accurate …

Read more »

Latent Variable Analysis with R: Getting Setup with lavaan

September 1, 2013
By
Latent Variable Analysis with R: Getting Setup with lavaan

Getting Started with Structural Equation Modeling Part 1Getting Started with Structural Equation Modeling: Part 1 Introduction For the analyst familiar with linear regression fitting structural equation models can at first feel strange. In the R environment, fitting structural equation models involves learning new modeling syntax, new plotting...

Read more »

Fair weather fans, redux

September 1, 2013
By
Fair weather fans, redux

Fair weather fans, redux Or, A little larger small sample On August 11 the Victoria HarbourCats closed out their 2013 West Coast League season with a 4-3 win over the Bellingham Bells. In an earlier...

Read more »

TV Ratings Myths

August 28, 2013
By
TV Ratings Myths

TV Show Cancellations: Myths and Models TV shows are amazing ways to waste time and, on occasion, the story is so good that you actually start to care. The problem is that some shows get cancelled before they jump the shark. Classic examples are shows like

Read more »

R, Twitter and URLs

August 26, 2013
By
R, Twitter and URLs

Yesterday evening, I wanted to play with Twitter, and see which websites I was using as references in my tweets, to get a Top 4 list. The first problem I got was because installing twitteR on Ubuntu is not that simple ! You have to install properly RCurl… But you before install the package in R, it is necessary...

Read more »

GDAT Class October 14-18, 2013

August 25, 2013
By
GDAT Class October 14-18, 2013

This is your fast track to enterprise performance analysis and capacity planning with an emphasis on applying R statistical tools to your performance data. Early-bird discounts are available for the Level III Guerrilla Data Analysis Techniques class O...

Read more »

The Wonders of foreach

August 25, 2013
By
The Wonders of foreach

Writing code from scratch to do parallel computations can be rather tricky. However, the packages providing parallel facilities in R make it remarkably easy. One such package is foreach. I am going to document my trail of discovery with foreach, which began some time ago, but has really come into fruition over the last few

Read more »