2151 search results for "map"

London Olympics 100m men’s sprint results

August 5, 2012
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London Olympics 100m men’s sprint results

The 100m mean's sprint finals of the 2012 London Olympics are over and Usain Bolt won the gold medal again with a winning time of 9.63s. Time to compare the result with my forecast of 9.68s, posted on 22 July. My simple log-linear model predicted ...

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plotting raster data in R: adjusting the labels and colors of a classified raster

August 2, 2012
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plotting raster data in R: adjusting the labels and colors of a classified raster

Thank’s to Andrej who wrote this comment: “Is it possible to to color the resulting 12 clusters within your original image to get a feel for visual separation?” You can do so: But how to get values at a location? You will need these values to determine whether the defined class is representing a water

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Multivariate Data Analysis Work Flow

August 2, 2012
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Multivariate Data Analysis Work Flow

Here is an example of a data analysis work flow supported in imDEV. This network visualization was made using CmapTools.

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More on Horizon Charts

August 1, 2012
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More on Horizon Charts

for background please see prior posts Application of Horizon Plots, Horizon Plot Already Available, and Cubism Horizon Charts in R Some feedback has led me to think that I might have been a little ambitious with my last post on horizon charts. I though...

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Hadley Wickham’s ggplot2 basics

August 1, 2012
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If you haven't made the plunge yet to making R graphics with Hadley Wickham's ggplot2 package, his "ggplot2 basics" slides (from the recent Introduction to Data Visualization and Analysis course at JSM) is a good place to start. Once you get the hang of the "grammar of graphics" notation, you'll be building beautiful data visualizations like this or this...

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Highlights from the useR! 2012 conference

August 1, 2012
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Highlights from the useR! 2012 conference

Video (screencast) of the presentation by Szilard Pafka at the Los Angeles R users group. I summarized (with short demos) a few of the talks from the useR! 2012 conference. We are planning one more meetup to cover more talks. … Continue reading →

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The Environmental Performance Index, visualized with R

July 31, 2012
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The Environmental Performance Index, visualized with R

The Environmental Performance Index (EPI) ranks countries on performance indicators for environmental public health and ecosystem vitality. Yale University hosts the EPI website, which was used to present the 2012 EPI Rankings to world leaders at the 2012 World Economic Forum at Davos. The Country Profiles section of the website allowed members to browse the performance characteristics of their...

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Edge Prediction in a Social Graph: My Solution to Facebook’s User Recommendation Contest on Kaggle

July 31, 2012
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Edge Prediction in a Social Graph: My Solution to Facebook’s User Recommendation Contest on Kaggle

A couple weeks ago, Facebook launched a link prediction contest on Kaggle, with the goal of recommending missing edges in a social graph. I love investigating social networks, so I dug around a little, and since I did well enough to score one of the coveted prizes, I’ll share my approach here. (For some background, the contest provided...

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Split-plot 2: let’s throw in some spatial effects

July 30, 2012
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Split-plot 2: let’s throw in some spatial effects

Disappeared for a while collecting frequent flyer points. In the process I ‘discovered’ that I live in the middle of nowhere, as it took me 36 hours to reach my conference destination (Estoril, Portugal) through Christchurch, Sydney, Bangkok, Dubai, Madrid … Continue reading →

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Big data, big analytics, big opportunity

July 30, 2012
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Big data, big analytics, big opportunity

Data, data, every where Nor any byte to think The world today is awash with data. Corporations, governments, and individuals are busy generating petabytes of data on culture, economy, environment, religion, and society.  While data has become abundant and ubiquitous, data analysts needed to turn raw data into knowledge are in fact in short...

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