846 search results for "Register"

Beat the Market with Meucci and Markowitz

January 5, 2017
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Beat the Market with Meucci and Markowitz

  Introduction I am very excited to finally share some of my research exploring Meucci’s (Meucci (2005)) portfolio optimization methods, and how the resulting portfolios compare to the use of historical data. For those unfamiliar with Attilio Meucci, he runs an annual Advanced Risk and Portfolio Managment Bootcamp in New York City every summer. The … Continue...

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EVENT Announcement: EARL Conferences 2017

January 4, 2017
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Mango Solutions are delighted to announce that the Effective Applications of the R Language Conference (EARL) will be held in three locations this year: San Francisco Bay Area – June 2017 London – 12-14 September 2017 Boston – November 2017 … Continue reading →

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Cross-validation of topic modelling

January 4, 2017
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Cross-validation of topic modelling

Determining the number of “topics” in a corpus of documents In my last post I finished by topic modelling a set of political blogs from 2004. I made a passing comment that it’s a challenge to know how many topics to set; the R topicmodels pack...

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Sparse matrices, k-means clustering, topic modelling with posts on the 2004 US Presidential election

December 30, 2016
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Sparse matrices, k-means clustering, topic modelling with posts on the 2004 US Presidential election

Daily Kos bags of words from the time of the 2004 Presidential election This is a bit of a rambly blog entry today. My original motivation was to just explore moving data around from R into the H2O machine learning software. While successful on this,...

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suRprise! – Classifying Kinder Eggs by Boosting

December 22, 2016
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suRprise! – Classifying Kinder Eggs by Boosting

Abstract Carrying the Danish tradition of Juleforsøg to the realm of statistics, we use R to classify the figure content of Kinder Eggs using boosted regression trees for the egg's weight and possible rattling noises. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The markdown+Rknitr source code...

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DataCamp’s 2017 Conference Guide

December 22, 2016
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DataCamp’s 2017 Conference Guide

2017 is bound to be an exciting year in Data Science. Here's DataCamp's list of conferences that we're most excited about in the new year. Whether you're an R user, a Python hacker, or just a general data science fan - you're sure to find a great confe...

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Greenville on Twitter

December 20, 2016
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Greenville on Twitter

In this blogpost, we use R to use Twitter data to analyze topics of interest to Greenville, SC. We will describe obtaining, manipulating, and summarizing the data. Twitter is a “microblogging” service where users can, usually publicly, share links, pictures, or short comments (up to 140 characters) onto a timeline. The public timeline consists of all public tweets, but people...

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How to build a Shiny app for disease- & trait-associated locations of the human genome

December 17, 2016
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This app is based on the gwascat R package and its ebicat38 database and shows trait-associated SNP locations of the human genome. You can visualize and compare the genomic locations of up to 8 traits simultaneously. The National Human Genome Research...

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satRday in Cape Town

December 16, 2016
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satRday in Cape Town

A celebration of R - In just two months time, the second satRday will be taking place right on my doorstep, in Cape Town, South Africa. I keep telling people I am looking forward to it, but to be honest that’s really quite an understatement. ...

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Introducing hugo!

December 11, 2016
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Introducing hugo!

Fun with bot frameworks - Roughly two months ago, I embarked on a short mission: to setup an instance of hubot for integration with Slack. Despite being armed with only a very limited working knowledge of Javascript (hubot runs on node.js and sc...

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