3795 search results for "GIS"

Creating Inset Map with ggplot2

June 14, 2014
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Creating Inset Map with ggplot2

According to wiki.GIS.com one of the reason for using inset map is to provide a reference for an area for unfamiliar readers.  Inset map is also considered a great asset for cartographers.  Most of the GIS software available in the market hav...

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Making publicly available data publicly accessible: Belgium’s Hospital Minimal Data

June 13, 2014
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Making publicly available data publicly accessible: Belgium’s Hospital Minimal Data

In current times data is everywhere. The big challenge however is making it not only available, but also accessible to those who need it. An example of this is the Hospital Minimal Data (Belgium). This dataset is openly published by the Federal Public Service for Health, Food Chain Safety & Environment. From a perspective of The post

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Five Hard-Won Lessons Using Hive

June 12, 2014
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I’ve been spending a ton of time lately on the data engineering side of ‘data science’, so I’ve been writing a lot of Hive queries. Hive is a great tool for querying large amounts of data, without having to know very much about the underpinnings of Hadoop. Unfortunately, there are a lot of things about Five Hard-Won...

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R User Groups June 2014

June 12, 2014
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R User Groups June 2014

by Joseph Rickert useR! 2014 is just about two weeks away, and I am very much looking forward to meeting R users from around the world. This is just a great time to catch up with old friends, hopefully make some new friends, and talk about R and R user groups. The number of R user groups continues to...

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Visualizing Bus Stops with rCharts

June 11, 2014
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I wanted to create a quick visualization of Bloomington IL bus stops. This data is in pdf file format spread across multiple files. The first step, before any mapping can occur, is downloading those files, parsing them to get the bus stop locations and...

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Statistical modeling and computation [apologies]

June 11, 2014
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Statistical modeling and computation [apologies]

In my book review of the recent book by Dirk Kroese and Joshua Chan,  Statistical Modeling and Computation, I mistakenly and persistently typed the name of the second author as Joshua Chen. This typo alas made it to the printed and on-line versions of the subsequent CHANCE 27(2) column. I am thus very much sorry

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Concerns that can deter potential orders for developing Shiny apps

June 10, 2014
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Concerns that can deter potential orders for developing Shiny apps

A few weeks ago I was invited to a meeting where a group was interested in exploring options for replacing their contract with a propriety software. They invited me because they saw some resemblances between a Shiny application I made and the features ...

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The joy of joining data.tables

June 9, 2014
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The joy of joining data.tables

The example I present here is a little silly, yet it illustrates how to join tables with data.table in R. Mapping old data to new dataCategories in general are never fixed, they always change at some point. And then the trouble starts with the data. For example not that long ago we didn't distinguish between smartphones and dumbphones,...

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slumping model

June 8, 2014
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slumping model

Introduction I got interested in layered sedimentation from viewing a video and decided it would be interesting to code this into R. More on that in due course, but my first step was to code a syatem with one sediment “type”. Procedure The following code drops sediment particles at x=1, and lets them roll downhill until they reach the bottom or...

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stone flakes

June 6, 2014
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stone flakes

I browsed through UC Irvine Machine Learning Repository! the other day and noticed a nice data set regarding stone flakes produced by our ancestors, the prehistoric men. To quote the dataset owners:'The data set concerns the earliest history ...

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