December 2016

Get Ready for RStudio::Conf

December 23, 2016 | 0 Comments

by Joseph Rickert The 2017 R Conference season will get off to an early start on January 13th and 14th with RStudio::Conf 2017 in Orlando, Florida. The schedule promises an intense but collegial experience with plenty of hands-on practice working with R and the RStudio tool chain of packages and products. ... [Read more...]

Merry ChRistmas!

December 23, 2016 | 0 Comments

Christmas day is soon upon us, so here's a greeting made with R: Each frame is a Voronoi Tesselation: about 1,000 points are chosen across the plane, which each generate a polygon comprising the region closer to it than any other selected point. These process is repeated for three designs (a ... [Read more...]

Did you say SQL Server? Yes I did….

December 23, 2016 | 0 Comments

Introduction My last blog post in 2016 on SQL Server 2016….. Some years ago, I have heard predictions from ‘experts‘ that within a few years Hadoop / Spark systems would take over traditional RDBMS’s like SQL Server. I don’t think … Continue reading →
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forecastHybrid 0.3.0 on CRAN

December 23, 2016 | 0 Comments

Make it easy to make ensemble time series forecast forecastHybrid is an R package to make it easier to use the average predictions of ‘ensembles’ (or ‘combinations’) of time series models from Rob Hyndman’s forecast package. It looks after t... [Read more...]

Price Volatility – Basic Brownian Motion

December 23, 2016 | 0 Comments

The Situation You are a consultant who has been hired by a business that sells one commodity product. On December 31st the price is $100 per unit. The business owner wants to know what to expect by the end of January. Your client gave you the message: Prices are based off ...
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finch – parse Darwin Core files

December 23, 2016 | 0 Comments

finch has just been released to CRAN (binaries should be up soon). finch is a package to parse Darwin Core files. Darwin Core is: a body of standards. It includes a glossary of terms (in other contexts these might be called properties, elements, fields, columns, attributes, or concepts) intended to ... [Read more...]

Merry Christmas 2016 (with R)

December 22, 2016 | 0 Comments

I'd like to wish all my readers a Merry Christmas 2016- R style! Behold my 3d Christmas tree created using the plot3D R package: While this might seem like yet another Christmas decoration done in R, it is unique in that the tree is rendered in 3d perspective. I ...
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Ordering Categories within ggplot2 Facets (followup)

December 22, 2016 | 0 Comments

I saw Simon Jackson’s recent blog post regarding ordering categories within facets. He proposed a way of dealing with the problem of ordering variables shared across facets within facets. This problem becomes apparent in text analysis where words are shared … Continue reading →
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Goodreads API with R

December 22, 2016 | 0 Comments

It’s December 23rd and I’ve only read 49 books. Whoops. There’s still time, but it’s definitely getting dicey. I’m about halfway through three books right now so I think I’ll be able to pull it off. Fingers crossed. Of course, last year I ... [Read more...]

Kindle clippings.txt with R

December 22, 2016 | 0 Comments

I highlight a lot of junk on my Kindle. Well, it’s not all junk! ? There’s usually some good stuff buried deep within my clippings.txt file. But it’s hard to manually parse through the file (and the junk). In the past I’ve relied on online ... [Read more...]

Kindle Clippings

December 22, 2016 | 0 Comments

I highlight a lot of junk on my Kindle. Well, it’s not all junk! ? There’s usually some good stuff buried deep within my clippings.txt file. But it’s hard to manually parse through the file (and the junk). In the past I’ve relied on online ... [Read more...]

Goodreads API

December 22, 2016 | 0 Comments

It’s December 23rd and I’ve only read 49 books. Whoops. There’s still time, but it’s definitely getting dicey. I’m about halfway through three books right now so I think I’ll be able to pull it off. Fingers crossed. Of course, last year I ... [Read more...]

suRprise! – Classifying Kinder Eggs by Boosting

December 22, 2016 | 0 Comments

Abstract Carrying the Danish tradition of Juleforsøg to the realm of statistics, we use R to classify the figure content of Kinder Eggs using boosted regression trees for the egg's weight and possible rattling noises. This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. The markdown+Rknitr ... [Read more...]

Start me up

December 22, 2016 | 0 Comments

The startup package makes it easy to control your R startup processes and to share part of your startup settings with others (e.g. as a public Git repository) while keeping secret parts to yourself. Instead of having long and windy .Renviron and .Rpro... [Read more...]

Pipes (%>%) Everywhere

December 22, 2016 | 0 Comments

An R user asked a question regarding whether it’s possible to have the RStudio pipe (%__%) shortcut (Cmd-Shift-M) available in other macOS applications. If you’re using Alfred then you can use this workflow for said task (IIRC this requires an Alfred license which is reasonably cheap). When you add ... [Read more...]

Take a Test Drive of the Linux Data Science Virtual Machine

December 22, 2016 | 0 Comments

If you've been thinking about trying out the Data Science Virtual Machine on Linux, but don't yet have an Azure account, you can now take a free test drive -- no credit card required! Just visit the Linux DSVM Marketplace page and click the blue button: The Linux Data Science ... [Read more...]

Comparative examples using replyr:let

December 22, 2016 | 0 Comments

Consider the problem of “parametric programming” in R. That is: simply writing correct code before knowing some details, such as the names of the columns your procedure will have to be applied to in the future. Our latest version of replyr::let makes such programming easier. Archie’s Mechanics #2 (1954) copyright ...
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Model Evaluation 2

December 22, 2016 | 0 Comments

We are committed to bringing you 100% authentic exercise sets. We even try to include as different datasets as possible to give you an understanding of different problems. No more classifying Titanic dataset. R has tons of datasets in its library. This is to encourage you to try as many datasets ... [Read more...]

DataCamp’s 2017 Conference Guide

December 22, 2016 | 0 Comments

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... [Read more...]
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