2956 search results for "ggplot"

Monthly Weather in Netherlands

December 14, 2014
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Monthly Weather in Netherlands

When I downloaded the KNMI meteorological data, the intention was to do something which takes more than just the computers memory. While it is clearly not big data, at the very least 100 years of daily data is not small either. So I took along a load o...

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FOMC Dates – Price Data Exploration

December 14, 2014
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FOMC Dates – Price Data Exploration

As a first step in visualizing/exploring the data from my last post, FOMC Dates - Scraping Data From Web Pages, I’ll plot the FOMC announcement dates along with the following price series: 2-Year and 10-Year US Treasury yields, S&P500 ETF (SPY) and USD Index ETF (UUP).I’ll use the quantmod R package to download the price data from...

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ggRandomForests: Visually Exploring random forests. V1.1.1 release.

December 12, 2014
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ggRandomForests: Visually Exploring random forests. V1.1.1 release.

Release early and often. http://cran.r-project.org/web/packages/ggRandomForests/index.html I may have been aggressive numbering the first CRAN release at v1.0, but there’s no going back now. The design of the feature set is complete even if the code has some catching up to… Continue reading →

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Meetup: DataVis with Plotly on December 16th

December 12, 2014
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Plotly is a  web-based platform for making graphs and analyzing data. Plotly’s APIs and web app...

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Can pregnant women intuit the sex of their children?

December 11, 2014
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Can pregnant women intuit the sex of their children?

“So let’s start with the fact that the study had only 100 people, which isn’t nearly enough to be able to make any determinations like this. That’s very small power. Secondly, it was already split into two groups, and the two groups by the way have absolutely zero scientific basis. There is no theory that

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In case you missed it: November 2014 Roundup

December 11, 2014
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In case you missed them, here are some articles from November of particular interest to R users. Reviews of some of the R-related presentations (by John Chambers, Trevor Hastie and others) at the H20 World conference. An R/Shiny app for making egg-nog. An author's look at how R was used to create many of the beautiful graphics in the...

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Look! It’s your data!

December 10, 2014
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Look! It’s your data!

If a picture is worth a thousand words, then how many tables are a single visualization worth? Exploratory data analysis is a great way to see what is and is not in your dataset. I work in a hospital research… Continue reading →

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maps and the art of survey-weighted maintenance

December 9, 2014
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maps and the art of survey-weighted maintenance

introducing swmap: cartography with complex survey data. this collection of publicly-available r syntax implements granular geographic variation visualizations similar to those seen in the popular press without compromising on survey methodology.thanks to david rae, paul regular, joseph larmarange, djalma pessoa, hadley wickham, thomas lumley, john baumgartner, viviane quintaes,

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Cindy Brewer: helping you choose better color scales for maps

December 5, 2014
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Cindy Brewer: helping you choose better color scales for maps

The choice of colors you use in a statistical graphic isn't just about making your chart look good: the colors you choose are often critical to interpretation. For example, you wouldn't want to use a scale like this to represent, say, average income on a map: That palette would be suitable for qualitative data without implicit ordering (say, political...

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ggvis tutorial: become a data visualization expert with RStudio

December 4, 2014
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ggvis tutorial: become a data visualization expert with RStudio

The latest interactive course in the RStudio track is now available on DataCamp: ggvis tutorial. The first part of the tutorial is available for  free, so everyone can now learn interactively how to start creating stunning ggvis data visualizations in R. All courses in the RStudio track are self-paced, and combine challenging interactive exercises with to the point videos. Garrett The post

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