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Posts By jenholm

Latest Posts | By jenholm
Build your own discrete event simulation framework in Python Part II
1 day ago

Build your own discrete event simulation framework in Python Part II

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 to …
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Build your own discrete event simulation framework in Python Part I
6 days ago

Build your own discrete event simulation framework in Python Part I

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 million. …
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Excel to R Transhipment Problem Optimization Tutorial Part II
2 weeks ago

Excel to R Transhipment Problem Optimization Tutorial Part II

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 have …
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Excel to R Transhipment Problem Optimization Tutorial Part I
3 weeks ago

Excel to R Transhipment Problem Optimization Tutorial Part I

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 larger …
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The Analyst’s Dilemma, R vs. Python, or How I Stopped Worrying and Hated Them Both
2 months ago

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

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 one …
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Crime Analysis Series: Manhattan Distance in R
2 months ago

Crime Analysis Series: Manhattan Distance in R

By  •  Crime Analysis

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 a …
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Crime Analysis Series Calculating Great Circle Distance Between Two Points in R Using Haversine Formula
2 months ago

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

By  •  Crime Analysis

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 formula …
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The Political Forecast Massacre of 2016
10 months ago

The Political Forecast Massacre of 2016

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 will …
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Dear Linux, Less Forking, More Testing
12 months ago

Dear Linux, Less Forking, More Testing

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 I …
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