Open-source models

On Monday of this week, the Imperial College COVID-19 Response Team released an influential report that forecasts how social isolation measures for mitigation and suppression...

In this posting, I am taking on the morbid challenge of forecasting how many people in the US will die from the COVID-19 coronavirus in the year 2020.

A shapefile (*.shp) is a binary file format used by Geographic Information Systems (GIS). I used an existing Python library (Fiona) to read and parse a shape file, and then...

It’s tax week here in the US, and like many other people, I have less than a week to finalize my tax returns. I also have some last minute decisions. Should I, or my wife, ...

The federal income tax in the United States uses a series of increasing tax brackets, so that those who earn more pay a higher percentage of their income in taxes.

This week, President Trump proposed new import tariffs on steel and aluminum. It seems as if the projected net impacts of these tariffs on the total US trade deficit and US economy ...

In this post, I’m going to highlight some new cell formatting options. This is a new feature I’ve had fun experimenting with, and I look forward to seeing how our user community...

If you are new to modeling, it can be very helpful to watch someone build a model from start to finish. I created a model to decide whether it would be cost-effective to instal...