2953 search results for "ggplot"

Making Back-to-Back Histograms

June 10, 2014
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Making Back-to-Back Histograms

A colleage of mine asked me how to do back to back histograms (instead of on top of each other). I feel as though there should be a function like voilin plot from the vioplot package. Voilin plots are good for displaying data, but the violin must have the left and right (or top and

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In case you missed it: May 2014 Roundup

June 9, 2014
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In case you missed them, here are some articles from May of particular interest to R users: Karl Broman's hipsteR guide lists some new(ish) features of R that early adopters may have missed. Joseph Rickert reviews the R/Finance 2014 conference and summarizes the R packages presented there. Plus, a review of R's impact on computational finance, with links to...

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AlienVault Longitudinal Study Part 4

AlienVault Longitudinal Study Part 4

In Part 1 we looked at acquiring raw data, and wrangling it into a time series dataset. In Part 2 we looked at types of threats in the time series. In Part 3 we looked at countries. Now we will examine countries and types in combination in the AlienVault reputation database. Just as we shaped our dataset for better understanding in previous...

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The Three Little Pigs

June 8, 2014
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The Three Little Pigs

Jesse, you asked me if I was in the meth business or the money business. Neither. I’m in the empire business (Walter White in Breaking Bad) The game of pig has simple rules but complex strategies. It was described for the first time in 1945  by a magician called John Scarne. Playing the pig game

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A simple workflow for using R with Microsoft Office products

June 5, 2014
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A simple workflow for using R with Microsoft Office products

The challenge of integrating Microsoft products with R software has been an outstanding issue for several years. Reasons for these issues are complicated and related to fundamental differences in developing proprietary vs open-source products. To date, I don’t believe there has been a satisfactory solution but I present this blog as my attempt to work

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str Implementation for Data Frames

June 5, 2014
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The str function is perhaps the most useful function in R. It provides great information about the structure of some object. When I teach R, especially for those coming from SPSS, the str function for data frames provides the information they are use to seeing on the variable view tab. However, sometimes I want to display the information str...

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Cohort analysis with R – “layer-cake graph” (part 2)

Cohort analysis with R – “layer-cake graph” (part 2)

Continue to exploit great idea of ‘layer-cake’ graph. If you like approach I shared in previous topic, perhaps you have one or two questions we should answer. Recall “Total revenue by Cohort” chart : As total revenue depends on number of customers we attracted and on amount of money each of them spent with us, it has sense to... Read More »

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Are they happy at school? PISA data and visualisation challange @ useR!2014

June 3, 2014
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Are they happy at school? PISA data and visualisation challange @ useR!2014

I hope you have already heard about DataVis contest at useR!2014 (in case you did not, here is more information: http://www.oecd.org/pisa/pisaproducts/datavisualizationcontest.htm). As a jury member I am not going to submit any work, but I am going to encourage you to play with the data, crunch a finding and submit interesting plot. How easy is

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Colourful Ecology Part 1: Selecting colours for scientific figures from an image using community ecology methods

June 3, 2014
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Colourful Ecology Part 1: Selecting colours for scientific figures from an image  using community ecology methods

(This article was first published on rstats - MetaEvoPhyloEcoOmics, and kindly contributed to R-bloggers) It used to be that I would make all my figures in black and white. It was just simpler that way, since most print journals charged extra money to print colour figures, and I did not have any money to spare. But with the move...

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Collaborative lesson development with GitHub

June 2, 2014
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If you're doing any kind of scientific computing and not using version control, you're doing it wrong. The git version control system and GitHub, a web-based service for hosting and collaborating on git-controlled projects, have both become wildly popu...

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