2047 search results for "regression"

Five years of Weight Tracking

June 22, 2013
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Five years of Weight Tracking

After I moved back from New Jersey in June 2008 I started to track my body weight more seriously. My routine usually consists of getting up and after finishing the morning bathroom I would step on my scale. That way I try to ensure that the condition for each weighing are as similar as possible. … Continue reading...

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Measuring Associations

June 20, 2013
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Measuring Associations

In Chapter 18, we discuss a relatively new method for measuring predictor importance called the maximal information coefficient (MIC). The original paper is by Reshef at al (2011). A summary of the initial reactions to the MIC are Speed and Tibshirani (and others can be found here). My (minor) beef with it is the lack...

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Bayesian Modeling of Anscombe’s Quartet

June 20, 2013
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Bayesian Modeling of Anscombe’s Quartet

Anscombe’s quartet is a collection of four datasets that look radically different yet result in the same regression line when using ordinary least square regression. The graph below shows Anscombe’s quartet with imposed regression lines (taken from the Wikipedia article). While least square regression is a good choice for dataset 1 (upper left plot) it...

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Data Science Labs: Predictive Models to Improve Vaccine Quality and Production

June 20, 2013
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Data Science Labs: Predictive Models to Improve Vaccine Quality and Production

The age of "blockbuster drugs" is coming to an end, as personalized medicine becomes a reality. Data science will be a major driver of innovation in these and other areas of the pharmaceutical industry. This was demonstrated during a project the Data Science Labs team executed on with a major pharmaceuticals company.

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A Toy Instrumental Variable Application

June 19, 2013
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A Toy Instrumental Variable Application

An R package for Smith-Wilson yield curves

June 19, 2013
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An R package for Smith-Wilson yield curves

Yield Curve fitting - the Smith-Wilson method Yield Curve fitting - the Smith-Wilson method This article illustrates the R package SmithWilsonYieldCurve, and provides some additional background on yield curve fitting. The method implemented in the package fits a curve to interest rate market...

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Oracle R Connector for Hadoop 2.1.0 released

June 17, 2013
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(This article was first published on Oracle R Enterprise, and kindly contributed to R-bloggers) Oracle R Connector for Hadoop (ORCH), a collection of R packages that enables Big Data analytics using HDFS, Hive, and Oracle Database from a local R environment, continues to make advancements. ORCH 2.1.0 is now available, providing a flexible framework while remarkably improving performance and...

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Top 100 R packages for 2013 (Jan-May)!

June 13, 2013
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Top 100 R packages for 2013 (Jan-May)!

(This article was first published on R-statistics blog » RR-statistics blog, and kindly contributed to R-bloggers) What are the top 100 (most downloaded) R packages in 2013? Thanks to the recent release of RStudio of their “0-cloud” CRAN log files (but without including downloads from the primary CRAN mirror or any of the 88 other CRAN mirrors), we can now answer this question...

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Data imputation I

June 12, 2013
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I recently entered kaggle titanic learning competition for fun and to see where my out of the box utilization of random forest would rank me (303 out of 5,882). It was interesting to see that much of the scoring differentiation came from score imputation, that is filling missing values based on other data. For example, we might have

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Using Quandl in R

June 12, 2013
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Using Quandl in R

Image by Jan Zander Our mantra here at Quandl is making data easy to find and easy to use. Following that goal we (and subsequently the community) have created packages that integrate Quandl’s API into a number of software platforms. Today we’ll take a look at R. R is a free statistical computing language created

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