Reading List Faster With parallel, doParallel, and pbapply

December 11, 2018
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Reading List Faster With parallel, doParallel, and pbapply

I have several tables that I would like to load as a sole data frame. Derived functions from read. table () have a lot of convenient features, but it seems like there is a lot of steps in the implementation that would slow things down. The gain in pe...

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Le Monde puzzle [#1075]

December 11, 2018
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Le Monde puzzle [#1075]

A new Le Monde mathematical puzzle in the digit category: Find the largest number such that each of its internal digits is strictly less than the average of its...

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Scraping NBA game data from basketball-reference.com

December 11, 2018
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Scraping NBA game data from basketball-reference.com

I’m a casual NBA fan: I don’t have time to watch the games but enjoy viewing the highlights on Instagram/Youtube (especially Shaqtin’ A Fool!); I sometimes read game articles...

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How to give money to the R project

December 11, 2018
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by Mark Niemann-Ross, an author, educator, and writer who teaches about R and Raspberry Pi at LinkedIn Learning I spend a LOT of time at r-project.org, in particular the...

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Christmas starts earlier every year… right?

December 11, 2018
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Christmas starts earlier every year… right?

It’s mid-September and you’re wandering around your preferred supermarket when you stumble across the Christmas section. “Already”, you think. “It wasn’t like this back when I was a kid”....

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RQuantLib 0.4.7: Now with corrected Windows library

December 11, 2018
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A new version 0.4.7 of RQuantLib reached CRAN and Debian. Following up on the recent 0.4.6 release post which contained a dual call for help: RQuantLib was (is...

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Day 11 – little helper trim

December 11, 2018
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Day 11 – little helper trim

This little helper removes leading and trailing whitespaces from a string. With R version 3.5.1 trimws was introduced, which does the exact same thing. This just shows, it was...

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DB connected R application on open-source Shiny server, part 1

December 11, 2018
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DB connected R application on open-source Shiny server, part 1

As a follow-up of my previous study of Australian politicians on Twitter I’ve decided to build a more sophisticated, autonomous solution. The idea at glance: Collect regularly tweets from...

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Generating reasonable starting trees for complex phylogenetic analyses

Generating reasonable starting trees for complex phylogenetic analyses

I never really thought I would write an R package. I use R pretty casually. Then, this year, I was invited to participate during the last week of the...

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Enter the #DataFramedChallenge for a chance to be on an upcoming podcast segment.

December 10, 2018
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Enter the #DataFramedChallenge for a chance to be on an upcoming podcast segment.

We’ll be back with Season 2 early in 2019 and to keep you thinking, curious and data focused in between seasons, we’re having a DataFramed challenge. The winner will...

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Reflections on the 10th anniversary of the Revolutions blog

December 10, 2018
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On December 9 2008, very nearly ten years ago, the first post on Revolutions was published. Way back then, this blog was part of a young startup called Revolution...

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5½ Reasons to Ditch Spreadsheets for Data Science: Code is Poetry

December 10, 2018
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5½ Reasons to Ditch Spreadsheets for Data Science: Code is Poetry

The post 5½ Reasons to Ditch Spreadsheets for Data Science: Code is Poetry appeared first on The Lucid Manager. When I studied civil engineering some decades ago, we solved all...

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The ‘knight on an infinite chessboard’ puzzle: efficient simulation in R

December 10, 2018
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The ‘knight on an infinite chessboard’ puzzle: efficient simulation in R

Previously in this series: The “lost boarding pass” puzzle The “deadly board game” puzzle I’ve recently been enjoying The Riddler: Fantastic Puzzles from FiveThirtyEight, a wonderful book from...

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Great post Yash!

December 10, 2018
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Great post Yash!

Great post Yash! For those readers interested in getting data from the fitbit API using R I’ve documented the process here: https://towardsdatascience.com/the-gamification-of-fitbit-how-an-api-provided-the-next-level-of-training-eaf7b267af00

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ggmap Tutorial Updated!

December 10, 2018
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ggmap Tutorial Updated!

The ggmap tutorial has been updated to address the Google Static Map API service issues.

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Confidence intervals for GLMs

December 10, 2018
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Confidence intervals for GLMs

You've estimated a GLM or a related model (GLMM, GAM, etc.) for your latest paper and, like a good researcher, you want to visualise the model and show the...

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Failure Pressure Prediction Using Machine Learning

December 10, 2018
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Failure Pressure Prediction Using Machine Learning

CategoriesRegression Models Tags ggplot2 Machine Learning Prediction R Programming In this post, the failure pressure will be predicted for a pipeline containing a defect based solely on burst test results and learning machine models. For...

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10 R functions for Linux commands and vice-versa

December 10, 2018
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10 R functions for Linux commands and vice-versa

This post will go through 10 different Linux commands and their R alternatives. If you’re interested in learning more R functions for working with files like some of those...

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{remedy} is now on CRAN

December 10, 2018
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{remedy} is now on CRAN

After living for more than a year on GitHub, we are pleased to announce that the {remedy} package is now on CRAN.  A package for easier Markdown writing About...

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Day 10 – little helper %nin%

December 10, 2018
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Day 10 – little helper %nin%

We at STATWORX work a lot with R and we often use the same little helper functions within our projects. These functions ease our daily work life by reducing...

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The Need for Speed Part 1: Building an R Package with Fortran (or C)

December 9, 2018
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The Need for Speed Part 1: Building an R Package with Fortran (or C)

Searching for Speed Everyone who has ever used R has, at one time or another, wished for an increase in R’s speed. If you haven’t, you’re not using R...

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Parallel processing to add a little zip to power simulations (and other replication studies)

December 9, 2018
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Parallel processing to add a little zip to power simulations (and other replication studies)

It’s always nice to be able to speed things up a bit. My first blog post ever described an approach using Rcpp to make huge improvements in a particularly...

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Network Centrality in R: Neighborhood Inclusion

December 9, 2018
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Network Centrality in R: Neighborhood Inclusion

This is the second post of a series on the concept of “network centrality” with applications in R and the package netrankr. The first part briefly introduced the concept itself, relevant...

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Introduction to chartbookR

Introduction to chartbookR

”“Data scientists … spend from 50 percent to 80 percent of their time … collecting and preparing unruly digital data, before it can be explored for useful nuggets.” (—...

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An 8-hour course on R and Data Mining

December 9, 2018
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I will run an 8-hour course on R and Data Mining at Black Mountain, CSIRO, Australia on 10 & 13 December 2018. The course materials, incl. slides, R scripts...

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CRAN Release of R/exams 2.3-2

December 9, 2018
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CRAN Release of R/exams 2.3-2

New minor release of the R/exams package to CRAN, containing a range of smaller improvements and bug fixes. Notably scanning of...

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Interesting packages taken from R/Pharma

December 9, 2018
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Interesting packages taken from R/Pharma

A few month ago I joined the R/Pharma conference in Cambridge, MA. As a take away I thought of my project and how I can improve, with solutions others provided....

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Canada Map

December 9, 2018
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Canada Map

I taught my Data Visualization seminar in Philadelphia this past Friday and Saturday. It covers most of the content of my book, including a unit on making maps. The...

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Smartly select and mutate data frame columns, using dict

December 9, 2018
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Smartly select and mutate data frame columns, using dict

Motivation Column operations Add Modify Remove Benchmark Summary Motivation The dplyr functions select and mutate nowadays are commonly applied to perform data.frame column operations, frequently combined with magrittrs forward %__% pipe. While...

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