3378 search results for "ggplot"

A web application for R’s ggplot2

December 7, 2009
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One of the exciting new frontiers for R programming is of creating website interfaces to R code. At the forefront of this domain is a young and (very) bright man called Jeroen Ooms, whom I had the pleasure of meeting at useR 2009 (press the link to see his presentation). Today Jeroen announced a new version (0.11)

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ggplot2: Overplotting In a Faceted Scatterplot

December 3, 2009
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ggplot2: Overplotting In a Faceted Scatterplot

Hadley Wickham recently shared a nice tip on how to get a faceted scatterplot plot with all points in the background of each plot. This technique makes a clever use of setting the faceting variable to NULL so that all points are plotted in light grey in all the facets. > library(ggplot2) > ggplot(mtcars, aes(cyl,

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Some sort of update to ggplot2

November 22, 2009
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Jeroen Ooms writes: Here's a first version of a new web application for exploratory graphical analysis. It attempts to implement the layered graphics from the R package ggplot2 in a user-friendly way. This two-minute demo video demonstrates a ...

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Using Faceting in ggplot2 to create Trellis-like Plots

November 9, 2009
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Using Faceting in ggplot2 to create Trellis-like Plots

One of the main strengths of the Trellis graphics paradigm is the use of panelling to divide data into subsets to investigate whether patterns are consistent as the conditioning variables change. In the ggplot2 package the terminology for specifying these separate panels is faceting and can be used to create similar displays. In our previous post

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QQ plots of p-values in R using ggplot2

November 9, 2009
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Way back will wrote on this topic.  See his previous post for Stata code for doing this.  Unfortunately the R package that was used to create QQ-plots here has been removed from CRAN, so I wrote my own using ggplot2 and some code I received from Daniel Shriner at NHGRI. Of course you can use R's built-in qqplot() function, but...

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Creating scatter plots using ggplot2

November 6, 2009
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Creating scatter plots using ggplot2

The ggplot2 package can be used as an alternative to lattice for producing high quality graphics in R. The package provides a framework and hopefully simple interface to producing graphs and is inspired by the grammar of graphics. The main function for producing graphs in this package is qplot, which stands for quick plot. The first

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ggplot2: Two Color XY-Area Combo Chart

October 21, 2009
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ggplot2: Two Color XY-Area Combo Chart

David@Work blog shows how to fill in the area between two crossing lines in an Excel chart. This post was also published as a guest-post on PTS blog. Let’s try to replicate this graph in ggplot2. First, load ggplot2 and generate the data frame to be used in the example (I am using a slightly

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ggplot2: Back-to-back Bar Charts

September 23, 2009
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ggplot2: Back-to-back Bar Charts

On the ggplot2 mailing-list the following question was asked: How to create a back-to-back bar chart with ggplot2? For anyone who don’t know what I am talking about, have a look on a recent paper from the EU. I’d like to create plots like the graph...

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Comparison of plots using Stata, R base, R lattice, and R ggplot2, Part I: Histograms

September 21, 2009
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One of the nicer things about many statistics packages is the extremely granular control you get over your graphical output.  But I lack the patience to set dozens of command line flags in R, and I'd rather not power the computer by pumping the mouse trying to set all the clicky-box options in Stata's graphics editor.  I want something...

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Learning ggplot2: 2D plot with histograms for each dimension

September 3, 2009
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Learning ggplot2: 2D plot with histograms for each dimension

I have two 2D distributions and want to show on a 2D plot how they are related, but I also want to show the histograms (actually, density plots in this case) for each dimension. Thanks to ggplot2 and a Learning R post, I have sort of managed to do what I want to have:

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