Monthly Archives: January 2016

THT: Cold Weather and Player Attributes

The second part of my cold-weather series at THT went up today, and so here are the companion charts of each curve’s smoothed 95% confidence bands.  Check out yesterday’s blog post for a few notes on how to evaluate each graph.

Region of Origin

U.S. Cold

Region 3 - US ColdU.S. Average

Region 3 - US AvgU.S. Hot

Region 3 - US HotCaribbean

Region 3 - CaribbeanGreater South America

Region 3 - GSAAging Curve

Early Prime

Age 3 - Early PrimeLater Prime

Age 3 - Later PrimeOld

Age 3 - Old

Weight

Lightweights

Weight 3 - LightweightsSlightly Light

Weight 3 - Slightly LightSlightly Heavy

Weight 3 - Slightly HeavyHeavyweights

Weight 3 - Heavyweights

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THT: Cold Weather, Positions, and Penalties

This is the appendix to my article today at The Hardball Times.  Below are the smoothed 95% confidence bands of every individual curve shown in the charts you see at THT.  These charts give you an idea of the considerable uncertainty found at five-degree intervals of temperature.  As we would expect, these confidence intervals tighten up between ~60 and ~85 degrees, reflecting the fact that most games are played within this temperature range.  Every five-degree bin is most uncertain at the very cold and very warm temperatures.

I aimed to keep these charts visually similar to those at THT, but there are some differences.  Mainly, you need to watch for different y-axis scales, brought on by samples that are small for some subsets.  One example is the chart below, as there are only so many plate appearances taken by catchers.

Defense

Catchers

Position 3 - CInfielders

Positions 3 - INFOutfielders (no plays made)

Positions 3 - OF (no plays made)Oufielders (made 1+ plays)

Positions 3 - OF (made 1_plus plays)Designated Hitters

Position - DH Revision

Times Through the Order (TTO)

TTO 1

TTO - TTO 1TTO 2

TTO - TTO2TTO 3

TTO - TTO3