3906 search results for "GIS"

Parallel computing in R

July 1, 2014
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Parallel computing in R

Roughly a year ago I published an article about parallel computing in R here, in which I compared computation performance among 4 packages that provide R with parallel features once R is essentially a single-thread task package. Parallel computing is incredibly useful, but not every thing worths distribute across as many cores as possible. Actually,

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R Job Notifications Using Twitter

R Job Notifications Using Twitter There has been some interesting activity about getting R to send a notification somehow when a long running job is completed. The most notable entries I have seen in this category are RPushBullet for web notifications and pingr for audio notifications. Although RPushBullet looks really cool (and Dirk does great work), I wondered...

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Parallel computing in R

June 30, 2014
By
Parallel computing in R

Roughly a year ago I published an article about parallel computing in R here, in which I compared computation performance among 4 packages that provide R with parallel features once R is essentially a single-thread task package. Parallel computing is incredibly useful, but not every thing worths distribute across as many cores as possible. Actually, there...

Read more »

Parallel computing in R

June 30, 2014
By
Parallel computing in R

Parallel computing is incredibly useful, but not every thing worths distribute across as many cores as possible. Roughly a year ago I published an article about parallel computing in R here, in which I compared computation performance among 4 packages that provide R with parallel features once R is essentially a single-thread task package. Parallel computing is...

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7 new R jobs (for June 30th 2014)

June 30, 2014
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r_jobs

This is the bimonthly R Jobs post (for 2014-06-30), based on the R-bloggers’ sister website: R-users.com. If you are an employer who is looking to hire people from the R community, please visit this link to post a new R job (it’s free, and registration takes less than 10 seconds). If you are a job seekers, please follow the links below to learn more and apply for your job of interest (or visit previous...

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Example 2014.8: Estimate power for an interaction, by simulation

June 30, 2014
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Example 2014.8: Estimate power for an interaction, by simulation

In our last entry, we demonstrated how to simulate data from a logistic regression with an interaction between a dichotomous and a continuous covariate. In this entry we show how to use the simulation to estimate the power to detect that interaction. ...

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Simple script from setting up R, Git, and Jags on Amazon EC2 Ubuntu Instance

June 28, 2014
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Just wanted to put up the script I've been using to create an Amazon EC2 Ubuntu instance for running RStudio, Git, and Jags. There isn't anything really new in here, but it it has been serving me well. The script begins after the basic instance has bee...

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Scraping Fantasy Football Projections from the Web

June 27, 2014
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Scraping Fantasy Football Projections from the Web

In this post, I show how to download fantasy football projections from the web using R.  In prior posts, I showed how to scrape projections from ESPN, CBS, NFL.com, and The post Scraping Fantasy Football Projections from the Web appeared first on Fantasy Football Analytics.

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FRAMA Part II: Replicating A Simple Strategy

June 27, 2014
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FRAMA Part II: Replicating A Simple Strategy

This post will begin the investigation into FRAMA strategies, with the aim of ultimately finding a FRAMA trading strategy with … Continue reading →

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Review of Applied Predictive Modeling by Kuhn and Johnson

June 26, 2014
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Review of Applied Predictive Modeling by Kuhn and Johnson

by Joseph Rickert Predictive Modeling or “Predictive Analytics”, the term that appears to be gaining traction in the business world, is driving the new “Big Data” information economy. Predictably, there is no shortage of material to be found on this subject. Some discussion of predictive modeling is sure to be found in any reasonably technical presentation of business decision...

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