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jenholm

Enholm Heuristics > Articles by: jenholm
  • Crime Analysis
  • Data Science Blog

Build your own discrete event simulation framework in Python Part II

  • September 25, 2017
  • jenholm
In Part I, we learned about creating a simple discrete event simulation controller in Python, using a clock that iterated over a minute counter and translated this minute counter...
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  • Crime Analysis
  • Data Science Blog

Build your own discrete event simulation framework in Python Part I

  • September 20, 2017
  • jenholm
The first question you might ask, is why the heck would you build your own simulation framework in Python? There’s a million of them, right? I wouldn’t say a...
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  • Crime Analysis
  • Data Science Blog
  • Uncategorized

Excel to R Transhipment Problem Optimization Tutorial Part II

  • September 11, 2017
  • jenholm
In this tutorial, I’ll finish the process of converting a simple Excel Transshipment problem that I wrote to minimize the traveling distance that a set of patrol cars would...
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  • Crime Analysis
  • Data Science Blog

Excel to R Transhipment Problem Optimization Tutorial Part I

  • September 8, 2017
  • jenholm
In this tutorial I’m going to go through creating an optimization model in Excel. The next part of the tutorial will be scaling a small optimization program into a...
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  • Data Science Blog
  • Random Thoughts Blog

The Analyst’s Dilemma, R vs. Python, or How I Stopped Worrying and Hated Them Both

  • August 3, 2017
  • jenholm
I recently worked on two analytic projects which had libraries which were crucial to the completion of the projects, which I like to call putting all your eggs in...
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  • Crime Analysis

Crime Analysis Series: Manhattan Distance in R

  • July 17, 2017
  • jenholm
As you can see in the image embedded in this page, travel from downtown Phoenix to downtown Scottsdale involves several rectangular-like movements. Traveling in a city laid out in...
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  • Crime Analysis

Crime Analysis Series Calculating Great Circle Distance Between Two Points in R Using Haversine Formula

  • July 14, 2017
  • jenholm
I recently started working in crime analysis and started to need to use latitudes and longitudes and calculate the distances between them. For this calculation I used the Haversine...
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  • Data Science Blog

The Political Forecast Massacre of 2016

  • December 5, 2016
  • jenholm
I’ve gone over the network forecasts for the presidential election of 2016 and it wasn’t a pretty sight. While I don’t buy the line that “A lot of forecasters...
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  • Data Science Blog
  • Random Thoughts Blog
  • Small Data
  • Uncategorized

New app showing feeds from our favorite Operations Research and Data Science Blogs

  • October 13, 2016
  • jenholm
https://enholm.net/iSnake/OpsResearch.html
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  • Data Science Blog

Dear Linux, Less Forking, More Testing

  • September 29, 2016
  • jenholm
I have a request from a sometimes Linux user, me. Please stop forking and making new distros. It’s not me, it’s you. Look, I’m a reasonably tech-savvy guy. And...
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