3364 search results for "MAP"

Attention Is Preference: A Foundation Derived from Brand Involvement Segmentation

September 1, 2014
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Attention Is Preference: A Foundation Derived from Brand Involvement Segmentation

"A wealth of information creates a poverty of attention."Herbert SimonWe categorize our world so that we can ignore most of it. In order to see figure, everything else must become ground. Once learned, the process seems automatic, and we forget how har...

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5 Ways to Do 2D Histograms in R

September 1, 2014
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5 Ways to Do 2D Histograms in R

Introduction Lately I was trying to put together some 2D histograms in R and found that there are many ways to do it, with directions on how to do so scattered across the internet in blogs, forums and of course, Stackoverflow.As such I thought I'd give each a go and also put all of them together here...

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Spatial Data Visualization with R

August 31, 2014
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Spatial Data Visualization with R

I’ve been fooling around with spatial data lately. As it turns out, there are some great R packages for visualizing this kind of data. Below is a set of charts I put together. It’s a good sample of the possibilities. Motherjones.com keeps a dataset with characteristics of every mass shooting since 1983. The location of each shooting is marked on the map … Continue reading...

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LED is my new Hello World – R Time

LED is my new Hello World – R Time

Yep...as I have said many times before, the LED Number application has become my new Hello World...whenever I learn a new programming language I try to build this, because it compromises several language constructs and makes you learn more by trying to...

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A Brief Introduction to Plotly

August 28, 2014
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A Brief Introduction to Plotly

This is a guest post by Matt Sundquist. Matt studied philosophy at Harvard and is a Co-founder at Plotly. He previously worked for Facebook’s Privacy Team, has been a Fulbright Scholar in Argentina and a Student Fellow of the Harvard Law School Program on the Legal Profession, and wrote about the Supreme Court for SCOTUSblog.com. Emailing… Continue reading →

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Continuous or Discrete Latent Structure? Correspondence Analysis vs. Nonnegative Matrix Factorization

August 25, 2014
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Continuous or Discrete Latent Structure? Correspondence Analysis vs. Nonnegative Matrix Factorization

A map gives us the big picture, which is why mapping has become so important in marketing research. What is the perceptual structure underlying the European automotive market? All we need is a contingency table with cars as the rows, attributes as the ...

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Spline interpolation of temporal resolution for satellite images.

August 25, 2014
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Spline interpolation of temporal resolution for satellite images.

This week, I had a discussion with a few of my colleagues on the possibility of utilizing remote sensing data or satellite images to improve our statistical estimation such as imputation. One source of interest is the

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Some love for ggplot2

August 25, 2014
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Some love for ggplot2

With all the recent buzz about ggvis (this, this, and this) it’s often easy to forget all that ggplot2 offers as a graphics package. True, ggplot is a static approach to graphing unlike ggvis but it has fundamentally changed the way we think about plots in R. I recently spent some time thinking about some

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More ESA 2014 Program Text-Mining: Topics as Communities

August 22, 2014
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More ESA 2014 Program Text-Mining: Topics as Communities

In my first pass at text analysis of the ESA program, I looked at how the frequency of words used in the ESA program differed from last year to this year. There are much more sophisticated ways at looking at word use in text, though, and I began to dive into the text-mining literature to find...

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RcppEigen 0.3.2.2.0

August 21, 2014
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A new upstream release of the Eigen C++ template library for linear algebra was released a few days ago. And Yixuan Qiu did some really nice work rolling this into a new RcppEigen released and then sent me a nice pull requent. The new version is now...

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