Posts Tagged ‘ graphics ’

Simple marimekko/mosaic plots

October 10, 2012
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Simple marimekko/mosaic plots

I don’t really care for the name “marimekko” or “mosaic,” but I do like this type of plot as a means of illustrating proportions in nested categorical data, or as an alternative to the parallel time series plots discussed...

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Style your R charts like the Economist, Tableau … or XKCD

October 5, 2012
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Style your R charts like the Economist, Tableau … or XKCD

As we noted last month, the new Themes feature in ggplot2 helps you customize the design of R charts to your liking. Now, R user Jeffrey Arnold has built on this feature to create standardized themes to make R graphics looks like those from major publications and other software systems. You can use his ggthemes package to make your...

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Transforming a color scale

October 3, 2012
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Transforming a color scale

In developing plots, I often use color (or “colour” in ggplot2 parlance) to reflect values of a third, non-X/Y, variable. Depending on the distribution of this Z variable, however, the effective color range can be narrow, making it difficul...

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A replacement for theme_blank()

October 2, 2012
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A replacement for theme_blank()

ggplot2 has just hit 0.9.2, and with the change comes a new theme system. Previous versions of ggplot2 offered a theme_blank(), which was a stripped-down, essentially blank plotting canvas, but it is now deprecated. github user jrnold has produced a s...

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Optimal seriation for your matrices

September 28, 2012
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Optimal seriation for your matrices

In our previous post, we used a quick-and-dirty method for ordering the axes on our heatmap. It has been pointed out to me that There is a Package for That (which is my nominee for a new slogan for R — not that it needs a slogan). seriation offe...

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3-D animation of the changing Antarctic ice sheet

September 27, 2012
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Last month we shared an visualization showing the changing extent of Arctic sea-ice. This visualization by the multinational Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) switches the view to the Southern pole and takes the visualization to a whole new level, by animating it in 3-D: The amount of sea ice in the Southern Ocean surrounding...

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Simplest possible heatmap with ggplot2

September 27, 2012
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Simplest possible heatmap with ggplot2

Featuring the lovely “spectral” palette from Colorbrewer. This really just serves as a reminder of how to do four things I frequently want to do: Make a heatmap of some kind of matrix, often a square correlation matrix Reorder a factor vari...

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Visually-weighted regression plots, with Zelig

September 25, 2012
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Visually-weighted regression plots, with Zelig

As a follow-up to yesterday’s post on producing visually-weighted regression plots, here is some code which illustrates the production of similar plots, but using Zelig’s convenient modeling and simulation functions. This code was produced...

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Simple visually-weighted regression plots

September 24, 2012
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Simple visually-weighted regression plots

There has recently been a lot of discussion of so-called “visually-weighted regression” plots. Folk hero Hadley Wickham suggests that such plots would be easy to implement with ggplot2, and so I have attempted to prove him right. The approa...

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A video map of the hottest songs in the US

September 21, 2012
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A video map of the hottest songs in the US

Today's guest post comes from Revolution Analytics data scientist Luba Gloukhov — ed. As a big fan of R’s ever-expanding geospatial plotting capabilities, I jumped at the chance create a map using The Million Song Dataset (MSD). For each of the 10,000 songs in the million song subset containing non-missing latitudes & longitudes and non-zero artists familiarity scores, I...

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