Spider Charts Sucks!
Spider Charts Sucks! I am openly sharing my opinion (backed up with work by Stephen Few) that spider charts sucks. It is time for the sport scientists to move away from PES (Pro Evolution Soccer; game on Sony Playstation…
Tag: Visualization
How to Analyze Movement Screen Tests?
How to Analyze Movement Screen Tests? In the recent post I shared the movement screen we designed and implemented. The question now is how to analyze the data and make real life decisions on it? What do we need to get fr…
Continuing with Statistical Power simulation in R
In the last blog post I created a simple simulation of statistical power (probability to identify effects when they are really there) calulation depending on the sample size and effect size (Cohen’s D using Will Hopkin…
“Power” to detect statistically significant effects based on sample size and magnitudes of effects
I was going through magnitude-based inferences materials by Will Hopkins and I am playing with R simulations. I wanted to see how many times I am able to detect statistically significant effects (p<0.05) depending on mag…
Playbook: Understanding MODERATION Through Simulation
Playbook: Understanding MODERATION Through Simulation Introduction I recently spoke with my college professor regarding the understanding of statistics, and I remarked that I learn the statistical concept the best (and w…
How to Visualize Test Change Scores for Coaches [Part 2]
To continue the previous How to visualize test change scores for coaches blogpost, here is another way to visualize individual change scores without falling for group averages. This way we can easily see individual ranks…
Understanding Inferential Statistics Using Correlation Example
In the following R and knitr experiment/blog post I will be documenting my play with correlation and inferences. I am just reading Discovering Statistics Using R by Andy Field and I am trying to code some staff from the …
Quick correction in simulating Typical Error
I am awaiting review and opinions/critiques from statistics wizard Will Hopkins for my How to visualize test change scores for coaches, but even on his first look he pointed to one small error I did in simulating typical…
How to Visualize Test Change Scores for Coaches
Coaches are not interested in making inferences to a population, statistical significance, nor mean values (P<0.01). What they are interested are individual athletes, their reactions to training and what are practically …
(Not so) Random Thoughts
(Not so) Random Thoughts Good Bye and Thanks to Hammarby IF The season 2013 ended with the last game on the home stadium Tele2 Arena on November 2ndwith a win against Östersunds FK. It was a pretty rough ride this seaso…
