Monthly Archives: March 2014

Call for Presentations for the EARL Conference, London Sep 2014

March 11, 2014
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Call for Presentations for the EARL Conference, London Sep 2014

Mango Solutions invite presentations for the EARL (Effective Applications of the R Language) Conference which will be held in London on the 16-17th September 2014. The EARL Conference provides an opportunity for those using and developing the open source statistical programming language R to share and discuss their practices of the R Language. The conference will focus primarily on...

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Confounding & collinearity

March 11, 2014
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Confounding & collinearity

(This article was first published on MATHEMATICS IN MEDICINE, and kindly contributed to R-bloggers) Confounding and collinearity Confounding and collinearity Introduction In this blog article, I will discuss about the bias introduced in estimation of coefficient of a given explanatory variable due to the presence of confounding factors. After that, I will try to demonstrate about the effect of...

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SAS, SPSS, Stata Users: Learn R from Home April 21

March 11, 2014
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SAS, SPSS, Stata Users: Learn R from Home April 21

Has learning R been driving you a bit crazy? If so, it may be that you’re “lost in translation.” On April 21 and 23, I’ll be teaching a webinar, R for SAS, SPSS and Stata Users. With each R concept, … Continue reading →

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Syria Timeline

March 11, 2014
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Syria Timeline

The UNHCR has provided a portal for tracking when refugees have left Syria and where they have gone.  The display of data in the graph below is in no way endorsed by the UNHCR, but was aggregated from their portal As seen in a previous post, neighboring countries and specifically Lebanon has played a significant...

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googleVis code development moved to GitHub

March 11, 2014
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googleVis code development moved to GitHub

After nearly 4 years of developing googleVis on Google Code with SVN we decided to move to GitHub. The main reason was that Google stopped the facility of hosting pre-CRAN builds of the package for user testing. The devtools package on the other hand m...

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Upcoming NYC R Programming Classes

March 10, 2014
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Upcoming NYC R Programming Classes

It is our pleasure to once again offer the intensive R beginner level course for the third time! Beginning this Sunday, the 35 hour course will walk you through the basic operations and characteristics of R, all the way to having a firm understanding of data manipulation and visualization. Also launching this weekend are two... Read more »

Capturing Intraday data

March 10, 2014
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Capturing Intraday data

I want to follow up the Intraday data post with an example of how you can capture Intraday data without too much effort by recording 1 minute snapshots of the market. I will take market snapshots from Yahoo Finance using following function that downloads delayed market quotes with date and time stamps: Next we can

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where did the normalising constants go?! [part 1]

March 10, 2014
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where did the normalising constants go?! [part 1]

When listening this week to several talks in Banff handling large datasets or complex likelihoods by parallelisation, splitting the posterior as and handling each term of this product on a separate processor or thread as proportional to a probability density, then producing simulations from the mi‘s and attempting at deriving simulations from the original product,

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Using Google BigQuery with R

March 10, 2014
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Using Google BigQuery with R

Hey everybody, this tutorial is about combining two great and powerful tools: R and Google BigQuery. Big Query: So but what is BigQuery? I think Google describes it very well on the developers page: “Querying massive datasets can be time consuming and expensive without the right hardware and infrastructure. Google BigQuery solves this problem by …

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R 3.0.3 is released

March 10, 2014
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R 3.0.3 is released

R 3.0.3 (codename “Warm Puppy) was released several days ago. The full list of new features and bug fixes is provided below. Upgrading to R 3.0.3 You can download the latest version from here. Or, if you are using Windows, you can upgrade to the latest version using the installr package. Simply run the following

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