883 search results for "SQL"

The World We Live In #2: To Study Or To Work

October 19, 2014
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The World We Live In #2: To Study Or To Work

I was getting ready for school and about to wear my uniform when I remembered that our principal had told us not to wear uniforms. So I decided to wear my favorite pink dress (Malala Yousafzai) After reading the diary of a Pakistani schoolgirl and Malala’s history, there is no doubt of being in front

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dplyr 0.3

October 13, 2014
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dplyr 0.3

I’m very pleased to announce that dplyr 0.3 is now available from CRAN. Get the latest version by running: install.packages("dplyr") There are four major new features: Four new high-level verbs: distinct(), slice(), rename(), and transmute(). Three new helper functions between, count(), and data_frame(). More flexible join specifications. Support for row-based set operations. There are two

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The World We Live In #1: Obesity And Cells

October 6, 2014
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The World We Live In #1: Obesity And Cells

Lesson learned, and the wheels keep turning (The Killers – The world we live in) I discovered this site with a huge amount of data waiting to be analyzed. The first thing I’ve done is this simple graph, where you can see relationship between cellular subscribers and obese people. Bubbles are countries and its size

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Sending Email From R

October 3, 2014
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When I am am working in Sql Server and need to send an email I use "sp_send_dbmail". So when I am working in R, I didn't know how to send an email. I often use this as notification that a … Continue reading →

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Deep Down Below – Using in-database analytics from within Tableau (with MADlib)

September 28, 2014
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Deep Down Below – Using in-database analytics from within Tableau (with MADlib)

Introduction Using Tableau for visualizing all kinds of data is quite a joy, but it’s not that strong on build-in analytics or predictive features. Tableaus integration of R was a huge step in the right direction (and I love it very much - see here, here and here) but still has some limitations (e.g. no RAWSQL...

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A book about some important bits of R

September 27, 2014
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I see that Hadley Wickham’s new book, “Advanced R”, is being published in dead tree form and will be available a month or so. Hadley has generously made the material available online; I quickly skimmed the material a few months ago when I first heard about it and had another skim this afternoon. The main

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Installing dplyr 0.3 on Mac OS X (Mavericks)

September 25, 2014
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UPDATE Per the author, a devtools::install_github("hadley/devtools") should take care of everything you need prior to installing the latest dplyr (though I did not have postgres libs installed and suspect that might still be needed). The R dplyr package just turned 0.3 and to get it working in my development environment (OS X Mavericks) I had to do the following: brew install postgresql...

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Data Science Toolbox Survey Results… Surprise! R and Python win

September 24, 2014
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Data Science Toolbox Survey Results… Surprise! R and Python win

This is a re-publication of a blog post from a blog I created not long before...

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Factors are not first-class citizens in R

September 23, 2014
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Factors are not first-class citizens in R

The primary user-facing data types in the R statistical computing environment behave as vectors. That is: one dimensional arrays of scalar values that have a nice operational algebra. There are additional types (lists, data frames, matrices, environments, and so-on) but the most common data types are vectors. In fact vectors are so common in R Related posts:

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Webinar September 25: Data Science with R

September 19, 2014
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A quick heads up that if you'd like to get a great introduction to doing data science with the R language, Joe Rickert will be giving a free webinar next Thursday, September 25: Data Science with R. Regular readers of the blog will be familiar with Joe's posts on this topic. A few recent examples include posts on comparing...

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