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Posts By jenholm

Latest Posts | By jenholm
Crime Analysis Series Calculating Great Circle Distance Between Two Points in R Using Haversine Formula
5 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
1 year 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
1 year 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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Marine Corps Inventory Reduction via Time Series Forecasting
2 years ago

Marine Corps Inventory Reduction via Time Series Forecasting

Last week I wrote an article about using a cluster computing system to generate a large amount of forecasts from time series data for the supply management units (SMU) in …
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Big Data Forecasting with R: Consumable Logistics for the Marine Corps
2 years ago

Big Data Forecasting with R: Consumable Logistics for the Marine Corps

Recently I constructed a simulation that modeled the consumable supply system of Marine Corps Logistics. The Marine Corps has several operational-level Supply Management Units (SMU) that warehouse and handle consumable …
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Windows Server 2008 Remote Desktop Local Print Fail Access Denied: Solved
2 years ago

Windows Server 2008 Remote Desktop Local Print Fail Access Denied: Solved

Symptoms:  When a user connects to a Windows Server 2008 Server using Remote Desktop local printers appear to work, but print jobs won’t print.  No error are reported to the …
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Who’s on my Amazon AWS RDS MySql Database?

By  •  Small Data

 

 

What you need to look at the running processes in your MySQL Amazon Web Services RDS Database to use this:

  1.  A MySQL command line client installed on …
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16 GB of 32 usable DRAM Windows 7 M5A99FX Pro 2.0 Motherboard Solved
2 years ago

16 GB of 32 usable DRAM Windows 7 M5A99FX Pro 2.0 Motherboard Solved

I used this motherboard to build two of my systems.

First thing you have to know:

DRAM SOCKETS ARE EXTREMELY TIGHT.

Let me say that again: DRAM SOCKETS ARE …
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Setting up MySQL RDS on with remote access on Amazon Web Services
2 years ago

Setting up MySQL RDS on with remote access on Amazon Web Services

Amazon Web Services has an amazing amount of capabilities, and some good ‘free’ stuff on it. But, and you knew the butt (sic) was coming, it can be painful to …
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