228 search results for "heatmap"

Modeling How Consumers Simplify the Purchase Process by Copying Others

December 23, 2015
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Modeling How Consumers Simplify the Purchase Process by Copying Others

A Flower That Fits the BillMarketing borrows the biological notion of coevolution to explain the progressive "fit" between products and consumers. While evolutionary time may seem a bit slow for product innovation and adoption, the same metaphor can be...

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The Topology Underlying the Brand Logo Naming Game: Unidimensional or Local Neighborhoods?

December 4, 2015
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The Topology Underlying the Brand Logo Naming Game: Unidimensional or Local Neighborhoods?

You can find the app on iTunes and Google Play. It's a game of trivial pursuits - here's the logo, now tell me the brand. Each item is scored as right or wrong, and the players must take it all very seriously for there is a Facebook page with cheat she...

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Countries of refugees to the US in 2014 and their destinations

November 20, 2015
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A tweet from Kyle Walker introduced me to data from the Office of Refugee Resettlement from the US Department of Health and Human Services. Using multiple R packages such as shiny, rCharts, rcdimple, leaflet, and d3heatmap, this post looks at the count...

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Countries of refugees to the US in 2014 and their destinations

November 19, 2015
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A tweet from Kyle Walker introduced me to data from the Office of Refugee Resettlement from the US Department of Health and Human Services. Using multiple R packages such as shiny, rCharts, rcdimple, leaflet, and d3heatmap, this post looks at the countries of 69,986 refugees in 2014 and their destinations in the US. All charts are interactive...

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A two-hour introduction to data analysis in R

November 9, 2015
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A few weeks ago I gave a two-hour Introduction to R workshop for the Master of Engineering Management students at Duke. The session was organized by the student-led Career Development and Alumni Relations committee within this program. The slides for the … Continue reading →

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Maungawhau with a Gaussian process

October 22, 2015
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Maungawhau with a Gaussian process

The Maungawhau volcano dataset is an R classic, often used to illustrate 3d plotting. Being on a Gaussian process kick lately, it seemed fun to try to interpolate the volcano elevation data using a subset of the full dataset as training data. Even with...

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New features in genomation package

October 15, 2015
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New features in genomation package

Extending genomation to work with paired-end BAM filesExtending genomation to work with paired-end BAM filesAccelerate functions responsible for reading genomic filesParallelizing data processing in ScoreMatrixListArithmetic, indicator and logic operations as well as subsetting work on ScoreMatrix objectsImprovements and new arguments in visualization functionsFaster...

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Simulating backgammon players’ Elo ratings

August 6, 2015
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Simulating backgammon players’ Elo ratings

Probabilities of winning with a given rating Backgammon clubs and on-line forums use a modified form of the Elo rating system to keep track of how well individuals have played and draw inferences about their underlying strength. The higher the rating, the stronger the player. Players with higher ratings are inferred to be stronger than those with...

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dendextend: a package for visualizing, adjusting, and comparing dendrograms (based on a paper from “bioinformatics”)

August 4, 2015
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dendextend: a package for visualizing, adjusting, and comparing dendrograms (based on a paper from “bioinformatics”)

This post on the dendextend package is based on my recent paper from the journal bioinformatics (a link to a stable DOI). The paper was published just last week, and since it is released as CC-BY, I am permitted (and delighted) to republish it here in full: abstract Summary: dendextend is an R package for creating and comparing visually appealing … Continue reading...

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A Dashboard Implementation Of Clustering App

July 28, 2015
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A Dashboard Implementation Of Clustering App

Background I previously built an interactive, online App using Shiny where you can upload your own data, perform basic clustering analysis, and view correlations in a heatmap. I wrote about this in my last post. While this worked, it was very ugly and needed a face lift. With the help of a friend, I implemented a dashboard...

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