2189 search results for "ggplot2"

Setting Axis Limits on ggplot Charts

December 3, 2013
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Setting Axis Limits on ggplot Charts

I’ve been doodling some chart in R/ggplot using geom_text() to generate a labelled scatterplot. The chart actually builds up several layers using different datasets, so it’s not obvious how to set the ranges cleanly: I know the lower bound I want for the y-axis (y=0), but I want to let the upper bound float. There’s

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Tutorials from the IV Jornadas de usuarios de R.

December 1, 2013
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Tutorials from the IV Jornadas de usuarios de R.

The “IV Jornadas de usuarios de R”  were held in Barcelona on November 15th and 16th of 2012. From the Barcelona’s Users Group (RugBcn) we want to highlight two workshops given by some of the RugBcn’s organizers : Ggplot2 and ggmaps by Lluís Ramon, Andreu Valls and Roger Borràs (in spanish). Introduction to reference classes by Aleix

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More Explorations with catR

December 1, 2013
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More Explorations with catR

# For the purposes of simulating computerized adaptive tests# the R package catR is unparallelled. # catR is an excellent tool for students who are curious about# how a computerized adaptive test might work. It is also useful# for testing companie...

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Introducing CrimeMap – A Web App Powered by ShinyApps!

November 29, 2013
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Introducing CrimeMap – A Web App Powered by ShinyApps!

A few months ago I did a mini project using open crime data and R to create crime visualisations. At that time, I was already thinking about a web app using Shiny but I couldn't justify the time to develop the app and then set up a server etc. Not unti...

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Analyzing baseball data with R

November 27, 2013
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Analyzing baseball data with R

This week, the post is an interview with Max Marchi. Max is the author, with Jim Albert, of the book "Analyzing baseball data with R". Hi, Max. Welcome back to MilanoR. Last time you wrote for us a series of … Continue reading →

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Mapping Power Outages In Maine With R

November 27, 2013
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Mapping Power Outages In Maine With R

UPDATE: A Shiny (dynamic) version of this is now available. We had yet-another power outage this morning due to the weird weather patterns of the week and it was the final catalyst I needed to crank out some R code to map the affected counties. Central Maine Power provides an outage portal where folks can

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sjPlot – data visualization for statistics (in social science) #rstats

November 26, 2013
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sjPlot – data visualization for statistics (in social science) #rstats

I’d like to announce the release of version 0.7 of my R package for data visualization and give a small overview of this package (download and installation instructions can be found on the package page). What does this package do? In short, the functions in this package mostly do two things: compute basic or advanced

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Generating Ticker Symbols with Markov Chains

November 25, 2013
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Generating Ticker Symbols with Markov Chains

Stock ticker symbols are short character string codes (AAPL for Apple, WMT for Walmart) that uniquely identify stock listings. They originate from the days when stock quotes were transmitted via telegraph. These symbols are often used as tools for branding and companies choose them to be memorable and easily recognized. As a fun and simple...

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Mapping Foodborne Chicago Reports

November 25, 2013
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Mapping Foodborne Chicago Reports

I help out with a project called Foodborne Chicago, where we search twitter for people in Chicago mentioning "food poisoning" and @reply to them with a link where they can file a report with the city of Chicago's Department of Public Health. The applic...

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Dutch Rainwater Composition 1992-2011

November 24, 2013
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Dutch Rainwater Composition 1992-2011

Last week I examined rainwater composition 1992 to 2005. There is additional data, but National Institute for Public Health has changed equipment in 2005. This week I will add those data.DataData is in a number of spreadsheets. The scrip...

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