716 search results for "SQL"

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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What are the most common RNG seeds used in R scripts on Github?

March 6, 2014
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What are the most common RNG seeds used in R scripts on Github?

In the R programming language, the random number generator (RNG) is seeded each session using the current time and process ID. Via the magic of the popular Mersenne Twister PRNG, the values stored in .Random.seed are used sequentially each time … Continue reading →

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Review: Kölner R Meeting 26 Feburary 2014

March 4, 2014
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Review: Kölner R Meeting 26 Feburary 2014

Last week's Cologne R user group meeting was all about R and databases. We had three talks from a generic overview on how to connect R to databases, to a specific example with kdb+ and perhaps the future with ArangoDB, a NoSQL database.Connecting R with databasesDiego de Castillo's talk focused on the use of relational databases, such...

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twitteR now supports database persistence

February 23, 2014
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For a long time now I've wanted to add the ability for storing data from twitteR into a RDBMS. In the past I've done things by concatenating new results onto old results which simply becomes unwieldy. I know that many people have doctored up their own ...

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Interactive exploration of a prior’s impact

February 21, 2014
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Interactive exploration of a prior’s impact

The probably most frequent criticism of Bayesian statistics sounds something like “It’s all subjective – with the ‘right’ prior, you can get any result you want.”. In order to approach this criticism it has been suggested to do a sensitivity analysis (or robustness analysis), that demonstrates how the choice of priors affects the conclusions drawn

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Regression with multiple predictors

February 18, 2014
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Regression with multiple predictors

(This article was first published on Digithead's Lab Notebook, and kindly contributed to R-bloggers) Now that I'm ridiculously behind in the Stanford Online Statistical Learning class, I thought it would be fun to try to reproduce the figure on page 36 of the slides from chapter 3 or page 81 of the book. The result is a curvaceous surface...

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ggplot2: Cheatsheet for Visualizing Distributions

February 18, 2014
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ggplot2: Cheatsheet for Visualizing Distributions

In the third and last of the ggplot series, this post will go over interesting ways to visualize the distribution of your data.

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R and (Software) Relatives

February 18, 2014
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R and (Software) Relatives

Post also available with code executed inline at rpubs.com. O'Reilly recently published the results of a survey from attendees of the Strata Conference related to tool usage and salary.  The entire survey is available for download.  In the survey results, R was heralded as second only to SQL as a tool used by conference attendees.  An chart from the...

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Data Analyst

February 17, 2014
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The Impact You’ll Have at RP The Analytics group strives to provide actionable data analysis for Return Path departments to make data-driven decisions. The Data Analyst will collaborate with statisticians, engineering teams, product management, marketing, and others to support existing products and develop new products. The Return Path Network is a growing collection of data The post

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R Developer

February 13, 2014
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Mango Solutions is a UK based R services company, offering application development, consultancy, training and support. We have a growing team of R developers and consultants who work on a wide variety of projects across a diverse range of sectors. We continue to look for talented individuals with R skills (as well as other programming The post

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