3221 search results for "map"

Stuff I’ve gotten horribly wrong

June 5, 2014
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Stuff I’ve gotten horribly wrong

I'm the first (I hope) to admit when I've gotten something wrong. I like to think I'm humble enough to realize that there are limits to my knowledge. Actually, humility doesn't enter into it. Every day I'm confronted with things that I don't know or understand. Those same limits can often blind me to being

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The Unavoidable Instability of Brand Image

June 4, 2014
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The Unavoidable Instability of Brand Image

"It may be that most consumers forget the attribute-based reasons why they chose or rejected the many brands they have considered and instead retain just a summary attitude sufficient to guide choice the next time."This is how Dolnicar and Rossiter con...

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Phylogenies in R and Python

June 2, 2014
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Phylogenies in R and Python

One of the reasons I switched to Python from R is because Python’s phylogenetic capabilities are very well developed, but R is catching up. I’m moving into phylogenetic community ecology, which requires a lot of tree manipulation and calculation of … Continue reading →

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Weekend at Bernoulli’s

June 1, 2014
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Weekend at Bernoulli’s

I have been doing some background reading on group sequential trials for an upcoming project. One of the papers I came across in terms of the required numerical methods is "Repeated Significance Tests on Accumulating Data" (Armitage, et al, 1969). In t...

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Portraying Your Field Sites to Others and Your Future Self Part 1: Little Planets

May 30, 2014
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Portraying Your Field Sites to Others and Your Future Self Part 1: Little Planets

I have been experimenting recently with using my relatively inexpensive camera to capture the feeling or sense of a place I am in, with an eye towards collecting a record of field sites in my ecological work. The key is for it to be more immersive th...

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Step-by-Step Guide to Setting Up an R-Hadoop System

May 30, 2014
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Step-by-Step Guide to Setting Up an R-Hadoop System

by Yanchang Zhao RDataMining.com Following my first R-Hadoop system setup guide written in Sept 2013, I have further tested setting up a Hadoop system for running R code, as well as using HBase. I have tested it both on a … Continue reading →

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Visualize Your Foursquare Check-ins with R

May 29, 2014
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Visualize Your Foursquare Check-ins with R

You can use this tutorial in the ThinkToStartR package with: token <-ThinkToStart(“Foursquare_auth”,app_name=”R_Test”,app_id=”XXX”,app_secret=”XXX”) map <- ThinkToStart(“Foursquare_map”,token) Hey R-Fans! You sure all heard of Foursquare. It has more than 45 million users but it´s potential is not recognized by much people. So today I want to show you how easy it is to get your check-in history and visualize …

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Downloading weather, sea ice, and wave model data with the rNOMADS package in R

May 28, 2014
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Downloading weather, sea ice, and wave model data with the rNOMADS package in R

The NOAA Operational Model Archive and Distribution System is a treasure trove of near real time and archived model outputs describing global and regional weather, sea ice, and wave data.  I developed the rNOMADS package about a year ago to make this available to R users. In this post, I’ll present some source code and

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Modernizing sugar in Rcpp11

May 27, 2014
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Modernizing sugar in Rcpp11

I'm in the process of modernizing the implementation of sugar in Rcpp11. Previous work already improved performance of sugar by allowing sugar classes themselves to implement how to apply themselves into their target vector. For example the sugar cla...

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How Do Cities Feel?

May 27, 2014
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How Do Cities Feel?

If you are lost and feel alone, circumnavigate the globe (For You, Coldplay) You can not consider yourself a R-blogger until you do an analysis of Twitter using twitteR package. Everybody knows it. So here I go. Inspired by the fabulous work of Jonathan Harris I decided to compare human emotions of people living (or

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