1840 search results for "Excel"

elasticsearchr – a Lightweight Elasticsearch Client for R

November 28, 2016
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elasticsearchr – a Lightweight Elasticsearch Client for R

elasticsearchr: a Lightweight Elasticsearch Client for R Elasticsearch is a distributed NoSQL document store search-engine and column-oriented database, whose fast (near real-time) reads and powerful aggregation engine make it an excellent choice as an ‘analytics database’ for R&D, production-use or … Continue reading →

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Bill and Ted Make the best out of a Shi… Stata situation: Rstudio + Rstata + Stata

November 28, 2016
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Bill and Ted Make the best out of a Shi… Stata situation: Rstudio + Rstata + Stata

After rewatching the thanksgiving classic, Bill and Ted’s Excellent Adventure, it reminded me of the history of #Rstats and its current status as the defacto software for general data programming. The most excellent thing about R, is the literate programming options you have. As a data analyst, you are Bill S. Preston Esquire (or Ted

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Building a column selecter

November 27, 2016
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Building a column selecter

Maybe the following sounds familiar. You have a large data set with many, many columns of which the most are irrelevant to you. Typically, a dump from a database or the full set extracted from an API. Several times I found myself the better part of an afternoon going back and forth between a view of the data where...

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Error, trend, seasonality – ets and its forecast model friends

November 26, 2016
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Error, trend, seasonality –  ets and its forecast model friends

A broad family of fast and effective forecast methods Exponential smoothing state space methods constitute a broad family of approaches to univariate time series forecasting that have been around for many decades and only in the twenty-first century pl...

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Learning R programming by reading books: A book list #rstats

November 26, 2016
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Learning R programming by reading books: A book list #rstats

R is an open-source software package and rapidly increases its popularity in both industry and academics. Google trend is probably the best tool to show you how popular R is since it allows us to rank the search interest among five major statistical so...

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Declining sea ice in the Arctic

November 23, 2016
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Declining sea ice in the Arctic

A number of data visualisations are circulating showing the disturbing rise in temperature at the North Pole and drop in coverage of Arctic sea ice. The current level of interest is credited to a tweet from Zack Labe, whose Twitter page is a great sou...

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Calculating AUC: the area under a ROC Curve

November 22, 2016
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Calculating AUC: the area under a ROC Curve

by Bob Horton, Microsoft Senior Data Scientist Receiver Operating Characteristic (ROC) curves are a popular way to visualize the tradeoffs between sensitivitiy and specificity in a binary classifier. In an earlier post, I described a simple “turtle’s eye view” of these plots: a classifier is used to sort cases in order from most to least likely to be positive,...

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Tidying and Analysing Response Time Data Using R

November 22, 2016
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Tidying and Analysing Response Time Data Using R

You have spent months collecting data, some participants turn up on time, some participants turn up late, and others do not show up at all. After all this, all you want to do is get down to analysing your data and writing up your results. However, before you do all that, you need to extract

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Some R Basics for SPSS Users

November 20, 2016
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Some R Basics for SPSS Users

There are a lot of reasons to use R instead of my field’s standby software, SPSS. With that said, I won’t get into them here. Instead, I just want to talk about a few things in R that might help a beginner get the hang of it. If you’re moving from SPSS and are just a social scientist with...

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The y-axis: to zero or not to zero

November 20, 2016
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The y-axis: to zero or not to zero

I don’t “do politics” at this blog, but I’m always happy to do charts. Here’s one that’s been doing the rounds on Twitter recently: A quick look at turnout data: It seems 2016 was nothing special for the Rep-candidate. It's the Dem-candidate that didn't get the vote out. pic.twitter.com/wby3gta26m — D Yanagizawa-Drott (@yanagiz) November 9,

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