Posts Tagged ‘ visualization ’

Happy Anniversary NYC R Meetup

March 12, 2010
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Happy Anniversary NYC R Meetup

Today is the one year anniversary of the NYC R Statistical Meetup. Starting as a small group meeting in a crowded conference room, Josh Reich established the meetup as the premiere gathering of data geeks in the tri-state area. Over the past year we have had 10 meetups, and two more upcoming on the

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Arrange multiple ggplot2 plots in the same image window

March 3, 2010
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In a previous tutorial I showed you how to create plots faceted by the level of a third variable using ggplot2. A commenter asked about using faceted plots and viewports and reminded me of this function I found in the ggplot2 Google group. The arrange function below is similar to using par(mfrow=c(r,c)) in base graphics to put more than...

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Nutritional supplements efficacy score – Graphing plots of current studies results (using R)

February 25, 2010
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Nutritional supplements efficacy score – Graphing plots of current studies results (using R)

In this post I showcase a nice bar-plot and a balloon-plot listing recommended Nutritional supplements , according to how much evidence exists for thier benefits, scroll down to see it(and click here for the data behind it) * * * * The gorgeous blog “Information Is Beautiful” recently publish an eye candy post showing a “balloon race” image...

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Happy Birthday GGD! The 10 Most Popular Posts Since GGD’s Launch

February 23, 2010
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The first post on Getting Genetics Done was one year ago today. To celebrate, here are the top 10 most viewed posts since GGD launched last year. Incidentally, nine of the ten are tutorials on how to do something in R. Thanks to all the readers and all...

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LocusZoom: Plot regional association results from GWAS

February 10, 2010
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Update Friday, May 14, 2010: See this newer post on LocusZoom. If you caught Cristen Willer's seminar here a few weeks ago you saw several beautiful figures in the style of a manhattan plot, but zoomed in around a region of interest, with several ot...

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Spatial Analytics in R Video

February 8, 2010
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The video from John Myles White’s outstanding introductory talk on spatial analysis with R to the NYC R Statistical Meetup is now available in the R video repository, and is also embedded after the jump. I would like to thank John for this fantastic talk, and for those interested the slides from this talk have also been

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What Countries are ‘Pulling their Weight’ for Haiti?

January 26, 2010
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What Countries are ‘Pulling their Weight’ for Haiti?

Using the data provided ReliefWeb on the Appeals and Funding to Haiti (h/t DataBlog) and the most recent GNP estimates, I decided to do a little “back of the envelope” analysis. With GNP as a proxy for a country’s wealth, the hypothesis is that pledges should roughly be a linear function of wealth, i.e., the

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Fluctuation plot using ggplot2 in R

January 22, 2010
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Found this nice way to visually summarize contingency tables using ggplot2 in R on Hadley Wickham's ggplot2 cheat sheet. Using the same data in my previous post on making scatterplots in small multiples, I'll demonstrate how to use ggfluctuation() to m...

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GWAS Manhattan plots and QQ plots using ggplot2 in R

January 20, 2010
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Will posted earlier this week about how to produce manhattan plots of GWAS results using Stata, so I thought I'd share how I do this in R using ggplot2. First, if you've never used ggplot2, you'll need to add it to your R installation by typing: install.packages("ggplot2") Once you've done that, copy and paste this command to download the functions I wrote...

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ggplot2 Tutorial: Scatterplots in a Series of Small Multiples

January 11, 2010
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It took several months after learning about ggplot2 before I gave it a try myself.  I was apprehensive about learning a new graphics system with a new set of commands.  Thing is, if you've ever used plot() in R, you already know how to use much of the functionality in ggplot2!  In this tutorial I want to show you...

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