1986 search results for "RStudio"

R: microbenchmark, reshaping big data features

January 7, 2016
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R: microbenchmark, reshaping big data features

pacman::p_load(data.table, microbenchmark ) train train_mat f1 f2 microbenchmark(f1(),f2(),times=10)

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R: Remove constant and identical features programmatically

January 7, 2016
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R: Remove constant and identical features programmatically

##### Removing constant features cat("n## Removing the constants features.n") for (f in names(train)) { if (length(unique(train])) == 1) { cat(f, "is constant in train. We delete it.n") train] <- NULL t...

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purrr 0.2.0

January 6, 2016
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purrr 0.2.0

I’m pleased to announce purrr 0.2.0. Purrr fills in the missing pieces in R’s functional programming tools, and is designed to make your pure (and now) type-stable functions purrr. I’m still working out exactly what purrr should do, and how it compares to existing functions in base R, dplyr, and tidyr. One main insight that

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The Making of a Star Wars Package

January 6, 2016
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By Stephanie Locke After some conversations at the coffee maker yesterday, I accepted the challenge of, wait for it… BUILDING A STAR WARS THEMED R PACKAGE! Some quick Googling found a JavaScript library that will generate some Star Wars based … Continue reading →

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Review: Learning Shiny

January 5, 2016
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Review: Learning Shiny

I was asked to review Learning Shiny (Hernán G. Resnizky, Packt Publishing, 2015). I found the book to be useful, motivating and generally easy to read. I'd already spent some time dabbling with Shiny, but the book helped me graduate from paddling in the shallows to wading out into the Shiny sea. The book states The post

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Regression with Splines: Should we care about Non-Significant Components?

January 4, 2016
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Regression with Splines: Should we care about Non-Significant Components?

Following the course of this morning, I got a very interesting question from a student of mine. The question was about having non-significant components in a splineregression.  Should we consider a model with a small number of knots and all components significant, or one with a (much) larger number of knots, and a lot of knots non-significant? My initial intuition was to...

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Zellingenach: A visual exploration of the spatial patterns in the endings of German town and village names in R

January 3, 2016
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Zellingenach: A visual exploration of the spatial patterns in the endings of German town and village names in R

Moritz Stefaner started off 2016 with a very spiffy post on “a visual exploration of the spatial patterns in the endings of German town and village names”. Moritz was exploring some new data processing & visualization tools for the post, but when I saw what he was doing I wondered how hard it would be

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Explorable, multi-tabbed reports in R and Shiny

January 2, 2016
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Explorable, multi-tabbed reports in R and Shiny

I take a prior example of multi-tabbed reports and rework it in R and Shiny, with some data visualization improvements.

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Google scholar scraping with rvest package

January 1, 2016
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Google scholar scraping with rvest package

In this post, I will show how to scrape google scholar. Particularly, we will use the 'rvest' R package to scrape the google scholar account of my PhD advisor. We will see his coauthors, how many times they have been cited and their affiliations. “rvest, inspired by libraries like beautiful soup, makes it easy to

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The R-Podcast Episode 15: Introduction to Shiny

December 31, 2015
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Just in time for the new year is a new episode of the R-Podcast! I give a brief introduction to the Shiny package for creating web applications using R code, provide some of my tips and tricks I have learned (sometimes the hard way) when creating appl...

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