You'll often hear something like 'invest in an index fund and get 8% returns'. How reliable is that 8% (or whatever number you hear)? Is that between 7% and 9% most of the time? 5 and 11%?
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Tuesday, December 31, 2019
Wednesday, December 25, 2019
If you know nothing but the quality of a team's recruits, can you predict their performance?
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Thursday, December 12, 2019
How do you set plotly's zoom level programmatically?
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Tuesday, December 10, 2019
Metallica has changed styles several times through their career. Does this show up in the song tempos over time/by album?
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Wednesday, December 4, 2019
I was curious how close ping times got to the physical ideal time.
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Monday, November 25, 2019
Here are a few plots showing how wealth distribution has shifted in the US over time.
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Monday, November 18, 2019
Ever wanted to put up a bunch of plots on your page, and have them render in a specific order instead of all at once? Here's a quick tutorial.
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Thursday, November 7, 2019
Quick guide for adding a busy gif over a plotly plot while it renders.
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Monday, October 28, 2019
Async/await can be confusing, so I figured it was worth writing a full async/await example in JavaScript. This is a simple page that shows usage of it in both client-side JavaScript and Node.js.
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Thursday, October 24, 2019
If it takes 40 years for a $100,000 investment to grow to $1,000,000, how long does it take it to grow an additional $1,000,000?
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Saturday, October 19, 2019
Does wind make much of a difference for baseball flight? Should you expect more homeruns in the summer?
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Tuesday, October 15, 2019
You need to guess a number between 1 and 100. You are told if your guess is too high or too low. Does it help if you are also told when your guess is within 5 of the answer?
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Thursday, October 10, 2019
I grew up eating no vegetables, lots of hot dogs, and lots of sweets. Over the past decade or so, I've achieved what I think is a healthy diet. This is hard for people, so I thought it might help someone if I explained how I personally did it.
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Friday, September 27, 2019
A seemingly simple probability problem came up at work today and I ended up simulating it because it got hard...
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Tuesday, September 24, 2019
I've heard a lot over the past couple of years about Harbaugh underperforming at Michigan...
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Saturday, September 14, 2019
Was Ted Williams' 1941 batting average really that remarkable?
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Friday, August 30, 2019
I was curious how NFL franchises have performed over time and if they have streaks of good then bad or if it's all kind of random.
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Tuesday, August 20, 2019
Is a 5-4 win or a 1-0 win more common? What margin of victories happen most often in baseball? Does baseball have a home field advantage?
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Friday, August 16, 2019
I played with stats from large cities in the US to see if anything correlates well with crime rates.
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Saturday, July 27, 2019
It often feels like stocks are at an all-time high, but there's an obvious reason for this...stocks are often near their all-time high.
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Tuesday, July 23, 2019
It seems like most of the top schools are in the northeast, so I tried visualizing it to see the distribution.
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Saturday, June 29, 2019
I see people mention Amazon or Netflix or whoever paying no federal tax often as if it's a terrible thing for society. Is it though?
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Saturday, June 1, 2019
How do you get SI notation and other custom tick marks in matplotlib?
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Saturday, May 25, 2019
Confidence intervals are confusing. I tried putting together a visualization that explains a valid interpretation of them.
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Thursday, May 23, 2019
Fun probability problems involving biased coins...
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Friday, May 17, 2019
Sometimes when using plotly, you'll plot something, it won't show up, and hovering over the point that didn't show up will work. What's going on?
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Friday, May 10, 2019
Plotly slows down with a lot of traces. I found a workaround to speed it up in certain situations.
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Thursday, May 2, 2019
Simple question...do stocks do better the day after stocks go up or the day after stocks go down?
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Sunday, April 21, 2019
I often order shrimp and grits when we get seafood, and the one at Salt Traders in Round Rock, TX inspired me to figure out how to make it well. Here is my Salt Traders shrimp and grits recipe attempt.
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Friday, April 19, 2019
You might have heard of 'normal', 'poisson', and other 'distributions' What real-life situations result in those?
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Tuesday, April 16, 2019
I took a crack at visualizing actual returns for long-term, steady investments in the S&P 500.
Thursday, April 4, 2019
I realized I didn't actually know which planet is closet to Earth. I'd guess Mercury since its orbital period is so small, but I looked at the data and summarized some results here.
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Sunday, March 31, 2019
In analyzing MVP winners, I found a few that seem off based on their stats that year.
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Saturday, March 16, 2019
I needed to classify curves recently and the tutorials I found for classification algorithms all used single points instead of curves. I settled on something crude but effective for my use case.
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Saturday, March 9, 2019
I took a stab at predicting which current and recent quarterbacks will make the Pro Football Hall of Fame.
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Wednesday, February 27, 2019
Who was the best quarterback of all time? Here is my attempt at answering that question.
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Friday, February 22, 2019
I didn't see any nice tutorials from start to finish on writing and deploying a Vue app, so I wrote down all the steps with a sample project. The sample project uses Vuetify as the Vue framework and plotly as the plotting framework. To get started, here is the finished product.
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Thursday, February 14, 2019
You see r^2 constantly when you see linear fits or linear regression. You'll often hear that it represents '% of variance explained by the model'. What does that mean?
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Friday, February 8, 2019
We stumbled on a fun algorithm problem in the wild at work this week.
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Sunday, February 3, 2019
Who were the best wide receivers ever? Here is my attempt at answering that question...
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Thursday, January 31, 2019
I had an idea for visualizing just how many people live in India and China.
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Saturday, January 26, 2019
Tuesday, January 22, 2019
If you get a raise and move up a tax bracket, do you actually lose money? Does a 70% tax rate on the highest earners mean that you'll lose 70% of your income to taxes?
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Friday, January 18, 2019
What are some of the techniques for handling outliers in linear regression, and how do they compare? I evaluate several in Python.
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Sunday, January 13, 2019
Here is my attempt at answering this question...
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Friday, January 4, 2019
The news often covers 'major' swings in stock prices. How rare are these large swings?
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