1049 search results for "sql"

Sparse matrices, k-means clustering, topic modelling with posts on the 2004 US Presidential election

December 30, 2016
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Sparse matrices, k-means clustering, topic modelling with posts on the 2004 US Presidential election

Daily Kos bags of words from the time of the 2004 Presidential election This is a bit of a rambly blog entry today. My original motivation was to just explore moving data around from R into the H2O machine learning software. While successful on this,...

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DataCamp’s 2017 Conference Guide

December 22, 2016
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DataCamp’s 2017 Conference Guide

2017 is bound to be an exciting year in Data Science. Here's DataCamp's list of conferences that we're most excited about in the new year. Whether you're an R user, a Python hacker, or just a general data science fan - you're sure to find a great confe...

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R for Enterprise: How to Scale Your Analytics Using R

December 21, 2016
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R for Enterprise: How to Scale Your Analytics Using R

by Sean Lopp At RStudio, we work with many companies interested in scaling R. They typically want to know: How can R scale for big data or big computation? How can R scale for a growing team of data scientists? This post provides a framework for answering both questions. Scaling R for Big Data or

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Correlation Primer with Aster and R

December 20, 2016
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Calculating correlations is often starting point before more advanced analytical steps take place. Big data (long data) always presents computational challenges of both scale and distributed nature. In turn they may get aggravated by the presence of large number of features (wide data). But challenges do not stop here as complex relationships induce analysis of correlations across subsets and groups....

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sergeant : An R Boot Camp for Apache Drill

December 20, 2016
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I recently mentioned that I’ve been working on a development version of an Apache Drill R package called sergeant. Here’s a lifted “TLDR” on Drill: Drill supports a variety of NoSQL databases and file systems, including HBase, MongoDB, MapR-DB, HDFS, MapR-FS, Amazon S3, Azure Blob Storage, Google Cloud Storage, Swift, NAS and local files. A... Continue reading...

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R graphs and tables in Power BI Desktop

December 18, 2016
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R graphs and tables in Power BI Desktop

Power BI Desktop enable users to use R script visual for adding custom visualization generated with R language – regardless of R package used. Before using R script visual, you will need to enable it by setting path to R Engine on your client in the global options. Once this is done, you will be … Continue...

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How to build a Shiny app for disease- & trait-associated locations of the human genome

December 17, 2016
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This app is based on the gwascat R package and its ebicat38 database and shows trait-associated SNP locations of the human genome. You can visualize and compare the genomic locations of up to 8 traits simultaneously. The National Human Genome Research...

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satRday in Cape Town

December 16, 2016
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satRday in Cape Town

A celebration of R - In just two months time, the second satRday will be taking place right on my doorstep, in Cape Town, South Africa. I keep telling people I am looking forward to it, but to be honest that’s really quite an understatement. ...

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Organize your data manipulation in terms of “grouped ordered apply”

December 15, 2016
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Organize your data manipulation in terms of “grouped ordered apply”

Consider the common following problem: compute for a data set (say the infamous iris example data set) per-group ranks. Suppose we want the rank of iris Sepal.Lengths on a per-Species basis. Frankly this is an “ugh” problem for many analysts: it involves all at the same time grouping, ordering, and window functions. It also is … Continue...

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Seinfeld Characters – A Post About Nothing

December 15, 2016
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Seinfeld Characters – A Post About Nothing

In the spirit of Seinfeld, this post will also "be about nothing." Data visualizations in R may shed some light on how these characters are related.

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