Previously, I had used R to plot daily totals for a years worth of my walking and cycling activity. As I accumulated a second year of data, I wanted to see a month-to-month comparison of the 2 years. Once the…

Third Landing
Investigations in Data

Previously, I had used R to plot daily totals for a years worth of my walking and cycling activity. As I accumulated a second year of data, I wanted to see a month-to-month comparison of the 2 years. Once the…

In this previous post, I had shown how to use Python to fill in zeroes in a time series. I thought I’d use this post to show how to do the same in R. By way of review, I track…

I grew up in a residential neighborhood in Chicago. I recently heard someone referring to themselves as living on the 9th floor of a building in that neighborhood, and I couldn’t remember any building that height in the old neighborhood.…

Ah, the times we live in. I was having discussion with friends about food and it turned to the question about how many countries are represented locally in Chicago by restaurants. There was a time in the not so distant…

From time to time I like to go back and work a problem or example on a topic to refresh my memory, clarify the concept for myself and hopefully learn some new implementation techniques. The following example comes from the…

In this previous post, I had given results on how to construct golf foursomes so that 8 people could play 7 rounds in a balanced way (each player played with every other player exactly 3 times). This post is an…

A friend of mine was going on a long golf weekend and ran into what I thought was an interesting scheduling problem. With 8 people (2 foursomes) playing 7 rounds, how can we construct the foursomes over the weekend so…

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