Monthly Archives: March 2017

A first look at Edward!

March 31, 2017
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A first look at Edward!

Motivation

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The R-help Community was Started on This Day 20 Years Ago

March 31, 2017
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The R-help Community was Started on This Day 20 Years Ago

Today, its been 20 years since Martin Mächler started the R-help community list. The first post was written by Ross Ihaka on 1997-04-01: Screenshot of the very first post to the R-help mailing list. This is a post about R’s memory model. We’re talking R v0.50 beta. I think that the paragraph at the end provides a nice anecdote on the...

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Tutorial: Using R for Scalable Data Analytics

March 31, 2017
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Tutorial: Using R for Scalable Data Analytics

At the recent Strata conference in San Jose, several members of the Microsoft Data Science team presented the tutorial Using R for Scalable Data Analytics: Single Machines to Spark Clusters. The materials are all available online, including the presentation slides and hands-on R scripts. You can follow along with the materials at home, using the Data Science Virtual Machine...

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ggedit 0.2.0 is now on CRAN

March 31, 2017
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ggedit 0.2.0 is now on CRAN

Jonathan Sidi, Metrum Research Group We are pleased to announce the release of the ggedit package on CRAN. To install the package you can call the standard R command install.packages('ggedit') The source version is still tracked on github, which has been reorganized to be easier to navigate. To install the dev version: devtools::install_github('metrumresearchgroup/ggedit') What is … Continue reading ggedit...

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The 5 Most Effective Ways to Learn R

March 31, 2017
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Whether you’re plotting a simple time series or building a predictive model for the next election, the R programming language’s flexibility will ensure you have all the capabilities you need to get the job done. In this blog we will take a look at ...

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Delaporte package: The SPARCmonster is sated

March 31, 2017
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Delaporte package: The SPARCmonster is sated

Finally, finally after months of pulling out my hair, the Delaporte project on CRAN passes all of its checks on Solaris SPARC. The last time it did that, it was still using serial C++. Now it uses OpenMP-based parallel Fortran 2003. What a relief! One of these days I should write up what I did Read the full article...

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Delaporte package: The SPARCmonster is sated

March 31, 2017
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Delaporte package: The SPARCmonster is sated

Finally, finally after months of pulling out my hair, the Delaporte project on CRAN passes all of its checks on Solaris SPARC. The last time it did that, it was still using serial C++. Now it uses OpenMP-based parallel Fortran 2003. What a relief! One of these days I should write up what I did Read the full article...

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Easy leave-one-out cross validation with pipelearner

March 31, 2017
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Easy leave-one-out cross validation with pipelearner

@drsimonj here to show you how to do leave-one-out cross validation using pipelearner.  Leave-one-out cross validation Leave-one-out is a type of cross validation whereby the following is done for each observation in the data: Run model on all other observations Use model to predict value for observation This means that a model is fitted, and a predicted is made n...

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Advanced choroplethr – Changing Color Scheme

March 30, 2017
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Advanced choroplethr – Changing Color Scheme

The choroplethr package is outstanding and fairly easy to use, but some functionality is not obvious.  The built-in color scheme is quite good, but you might want to switch colors at some point.  My first attempt at changing the color scheme can be found below (previous post has basic code for using choroplethr): Pretty simple

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Advanced choroplethr – Changing Color Scheme

March 30, 2017
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Advanced choroplethr – Changing Color Scheme

The choroplethr package is outstanding and fairly easy to use, but some functionality is not obvious.  The built-in color scheme is quite good, but you might want to switch colors at some point.  My first attempt at changing the color scheme can be found below (previous post has basic code for using choroplethr): Pretty simple

Read more »

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