1093 search results for "SQL"

Madrid R User Group, A Brief History

March 9, 2017
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(Editors note: A Spanish verison of the post follows the English text) In the first meeting we were 5, now we are consistently over 60. It was not difficult for us to start up the group of users of R of Madrid. Gregorio Serrano, Carlos Gil Bellosta, Pedro Concejero and I started...

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In case you missed it: February 2017 roundup

March 7, 2017
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In case you missed them, here are some articles from February of particular interest to R users. Public policy researchers use R to predict neighbourhoods in US cities subject to gentrification. The ggraph package provides a grammar-of-graphics framework for visualizing directed and undirected graphs. Facebook has open-sourced the "prophet" package they use for forecasting time series at scale. A...

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replyr: Get a Grip on Big Data in R

March 5, 2017
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replyr: Get a Grip on Big Data in R

replyr is an R package that contains extensions, adaptions, and work-arounds to make remote R dplyr data sources (including big data systems such as Spark) behave more like local data. This allows the analyst to more easily develop and debug procedures that simultaneously work on a variety of data services (in-memory data.frame, SQLite, PostgreSQL, and … Continue...

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Using MongoDB with R

March 2, 2017
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Using MongoDB with R

MongoDB is a NoSQL database program which uses JSON-like documents with schemas. It is free and open-source cross-platform database. MongoDB, top NoSQL database engine in use today, could be a good data storage alternative when analyzing large volume data. To use MongoDB with R, first, we have to download and install MongoDB Next, start MongoDB. Related Post

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Predicting the length of a hospital stay, with R

March 2, 2017
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Predicting the length of a hospital stay, with R

I haven't been admitted to hospital many times in my life, but every time the only thing I really cared about was: when am I going to get out? It's also a question that weighs heavily on hospital managers: by knowing ahead of time how long each patient's stay is likely to be, they can better manage facilities and...

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Data Science Job Report 2017: R Passes SAS, But Python Leaves Them Both Behind

March 1, 2017
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Data Science Job Report 2017: R Passes SAS, But Python Leaves Them Both Behind

I’ve just updated another section of The Popularity of Data Science Software. It is reproduced below to save you the trouble of reading the entire article. If your organization is looking for training in the R language, you might consider my … Continue reading →

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Building deep neural nets with h2o and rsparkling that predict arrhythmia of the heart

February 27, 2017
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Building deep neural nets with h2o and rsparkling that predict arrhythmia of the heart

Last week, I introduced how to run machine learning applications on Spark from within R, using the sparklyr package. This week, I am showing how to build feed-forward deep neural networks or multilayer perceptrons. The models in this example are built ...

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Announcing community R workshops

February 27, 2017
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A big part of why I’ve launched Locke Data is so that I can give back more to my communities. I want to give more time and more support to others. One of the first steps is doing some activities that give financial support to community groups without damaging my startup cashflow! Community R workshops …

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Preview: R Tools for Visual Studio 1.0

February 23, 2017
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Preview: R Tools for Visual Studio 1.0

After more than a year in preview R Tools for Visual Studio, the open-source extension to the Visual Studio IDE for R programming, is nearing its official release. RTVS Release Candidate 1 is now available for download, giving you the opportunity to try out the new features ahead of the official announcement. We'll cover the features in detail with...

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The Zero Bug

February 21, 2017
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The Zero Bug

I am going to write about an insidious statistical, data analysis, and presentation fallacy I call “the zero bug” and the habits you need to cultivate to avoid it. The zero bug Here is the zero bug in a nutshell: common data aggregation tools often can not “count to zero” from examples, and this causes … Continue...

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