1854 search results for "ggplot2"

ggplot graphs in publications?

November 6, 2012
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ggplot graphs in publications?

The grey background and/or default choice of colours for groups makes a ggplot graph stand out to any R user when seen in a presentation. But ggplot graphs get all ninja when it comes to publications, either that or not … Continue reading →

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Forest plots in R (ggplot) with side table

November 6, 2012
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Forest plots in R (ggplot) with side table

A friend asked me to help with a forest plot recently. After chatting about what she wanted the end result to look like, this is what I came up with. grid.arrange(data_table, p, ncol=2) ## Warning: Removed 1 rows containing missing … Continue reading →

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Quick Post About Getting and Plotting Polls in R

November 5, 2012
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Quick Post About Getting and Plotting Polls in R

With the election nearly upon us, I wanted to share an easy way I just found to download polling data and graph a few with ggplot2. dlinzer at github created a function to download poll data from the Huffington Post's Pollster API.The default is to dow...

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The New Madrid Fault – Past, Present and Future

November 2, 2012
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The New Madrid Fault – Past, Present and Future

New Madrid, Territory of Missouri, March 22, 1816 Dear Sir, In compliance with your request, I will now give you a history, as full in detail as the limits of the letter will permit, of the late awful visitation of Providence in this place and vicinity.  On the 16th of December, 1811, about two o'clock, A.M., we were visited by a violent...

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Upcoming R training by Hadley Wickham: SF Dec 3-4, DC Dec 10-11

November 1, 2012
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(By Hadley Wickham) Hi all, I’d like to let you know about four R training courses that RStudio will be offering in December: * Effective data visualization (http://bit.ly/TY2ONI) Dec 3. San Francisco, CA * Reports and reproducible research (http://bit.ly/RsZmYr) Dec 4. San Francisco, CA * Advanced R programming (http://bit.ly/RvZDsd) Dec 10. Washington, DC * Package development (http://bit.ly/UhTIWz) Dec 11....

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GGtutorial: Day 4 – More Colors

November 1, 2012
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GGtutorial: Day 4 – More Colors

So far we’ve covered Melting and Casting data using the reshape() package and today we’re going to look at different ways of coloring and selecting palettes for plots. For these plots, we’re going to use the built in diamonds data...

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More data apps spawned by Sandy

October 31, 2012
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More data apps spawned by Sandy

As the clean-up continues on the eastern seaboard, I wanted to follow up on Monday's post on tracking Hurricane Sandy with Open Data with a couple of other R-based data applications spawned by the storm. Josef Fruehwald created an R script to tap into local weather sensors to keep track of air pressure, wind speed and rainfall near his...

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Hierarchical linear models and lmer

October 31, 2012
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Hierarchical linear models and lmer

Hierarchical linear models and lmer Article by Ben Ogorek Graphics by Bob Forrest Background My last article featured linear models with random slopes. For estimation and prediction, we used the lmer function from the lme4 package. Today we'll consider another level in the hierarchy, one...

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GGtutorial: Day 3 – Introduction to Colors

October 31, 2012
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GGtutorial: Day 3 – Introduction to Colors

So, where does ggplot get its colors? If you’ve ever asked ggplot to color on the basis of a factor, you might have beeen surprised by the default color choices.  The fact is, ggplot colors factors on the basis of finding evenly spaced colors a...

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Fitting Distributions to Data with R

October 31, 2012
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In “Fitting Distributions with R” Vito Ricci writes; “Fitting distributions consists in finding a mathematical function which represents in a good way a statistical variable. A statistician often is facing with this problem: he has some observations of a quantitative character and he wishes to test if those observations, being a sample of an unknown population, belong from a...

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