Monthly Archives: April 2016

New nasadata R package

April 30, 2016
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New nasadata R package

This package intends to provide a hassle-free way to access some of NASA’s open-source API’s to build applications or models. Because the documentation seems inconsistent and there are tons of API’s, I have concentrated my efforts on three which I believe provide the best “bang for my money”. The source package is built around these three API’s, but for the sake...

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Register now for Hadley Wickham’s Master R in Amsterdam

April 30, 2016
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Register now for Hadley Wickham’s Master R in Amsterdam

On May 19 and 20, 2016, Hadley Wickham will teach his two day Master R Developer Workshop in the centrally located European city of Amsterdam. This is the first time we’ve offered Hadley’s workshop in Europe. It’s a rare chance to learn from Hadley in person. Only 3 public Master R Developer Workshop classes are

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Introduction to R for Data Science

April 30, 2016
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Introduction to R for Data Science

Branko Kovač Data Analyst at CUBE, Data Science Mentor at Springboard, Institut savremenih nauka, Data Science Serbia, and Goran S. Milovanović, [email protected], Data Science Serbia, are giving a free introductory course on R for Data Science in Belgrade, Serbia. All course materials - slides, R scripts, data sets, summaries and recommended readings -...

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Introduction to R for Data Science :: Session 1

April 30, 2016
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Introduction to R for Data Science :: Session 1

Welcome to Introduction to R for Data Science Session 1! The course is co-organized by Data Science Serbia and Startit. You will find all course material (R scripts, data sets, SlideShare presentations, readings) on these pages. Lecturers dipl. ing Branko Kovač, Data Analyst at CUBE, Data Science Mentor at Springboard, 

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Lattice exercises – part 1

April 30, 2016
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Lattice exercises – part 1

In the exercises below we will use the lattice package. First, we have to install this package with install.packages("lattice") and then we will call it library(lattice) . The Lattice package permits us to create univariate, bivariate and trivariate plots. For this set of exercises we will see univariate and bivariate plots. We will use a

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Base R Nostalgia — by, tapply, ave, …

April 30, 2016
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Base R Nostalgia — by, tapply, ave, …

photo credit: Paul Yoakum This evening I was feeling nostalgic for base R group-bys. Before there was dplyr, there was apply and its cousins. I thought it’d be nice to get out the ol’ photo-album. To start off, the base R proto-ancestor of magrittr piping for me was the with function, especially with apply. It just cleaned up...

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Identify, describe, plot, and remove the outliers from the dataset

April 30, 2016
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Identify, describe, plot, and remove the outliers from the dataset

In statistics, a outlier is defined as a observation which stands far away from the most of other observations. Often a outlier is present due to the measurements error. Therefore, one of the most important task in data analysis is to identify and (if is necessary) to remove the outliers. There are different methods to Related Post

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Data science with Docker

April 29, 2016
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Using docker to facilitate your data science pipelines Until recently, and like many other fellow data scientists I have talked to, I built data science pipelines on my local machine or a remote host while relying on virtual environments. In doing so, I ensured some degree of replicability by keeping check of language versions, library versions, and so on. While...

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First Thoughts on Automatically Generating Accessible Text Descriptions of ggplot Charts in R

April 29, 2016
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First Thoughts on Automatically Generating Accessible Text Descriptions of ggplot Charts in R

In a course team accessibility briefing last week, Richard Walker briefly mentioned a tool for automatically generating text descriptions of Statistics Canada charts to support accessibility. On further probing, the tool, created by Leo Ferres, turned out to be called iGraph-Lite: … an extensible system that generates natural language descriptions of statistical graphs, particularly those

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Bad Neighbours (no, not the movie)

April 29, 2016
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Bad Neighbours (no, not the movie)

Another day, another compulsion to see if I can do any better than someone's solution. This one also comes from the FiveThiryEight Puzzler challenge courtesy of Xi'an The original challenge this time was The misanthropes are coming. Suppose there is...Continue Reading →

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