Andrew Grogan-Kaylor - Blog-ish Posts

Complexity Hidden Inside Simplicity

Complex Answers To Seemingly Simple Questions

teaching

stats

I have been thinking a lot lately about the idea that statistical questions are often seemingly simple questions, that contain complex answers, or answers that have complex…

Andy Grogan-Kaylor

There Is Also Relevant Material in Stats Stuff

stats

dataviz

multilevel

Bayes

In addition to these blog posts, there is also sometimes relevant material in Stats Stuff

Andy Grogan-Kaylor

Lao PDR is #66

Lao PDR is the 66th Country to Ban Corporal Punishment

corporal punishment

Lao PDR is the 66th country to ban corporal punishment: https://agrogan1.github.io/research/cpbans/

Andy Grogan-Kaylor

Multilevel Multilingual

multilevel

stats

book

Analyzing Multilevel Data in Multiple Statistical Languages.

Andy Grogan-Kaylor

How To Choose A Chart

A Statistically Informed Visual Guide With Stata Commands

stats

dataviz

I’ve updated my graphing tutorial for Stata: How To Choose A Chart - A Statistically Informed Visual Guide With Stata Commands

Andy Grogan-Kaylor

Multilevel Visualization

multilevel

stats

book

dataviz

Visualizing Multilevel Data in Multiple Statistical Languages.

Andy Grogan-Kaylor

ArcGIS Storymaps

Experimenting with a new format for sharing research.

GIS

MICS

Locations of Countries in MICS

Andy Grogan-Kaylor

Tables in Stata

With Particular Attention to Multilevel Models

stats

multilevel

workflow

I’ve developed two new handouts on making tables in Stata.

Andy Grogan-Kaylor

Theory

social justice

theory

science

A few ideas relevant to theory that have been on my mind.

Andy Grogan-Kaylor

Updated Michigan Colors for Stata Graphs

stats

dataviz

I’ve updated my Michigan Colors for Stata Graphs at: https://agrogan1.github.io/Stata/michigan-graph-scheme/.

Andy Grogan-Kaylor

An Introduction to Bayesian Statistics

stats

Bayes

multilevel

Last Fall, I gave a talk on Bayesian statistics to a group of PHD students at Michigan. I have posted the slides here: https://agrogan1.github.io/Bayes/Bayestalk/Bayestalk.ht…

Andy Grogan-Kaylor

Workflow

Thoughts about data science / data analysis workflow.

stats

workflow

science

I have been thinking a lot recently about workflow, particularly in data science and data analysis projects. My thoughts are here: https://agrogan1.github.io/teaching/workflo…

Andy Grogan-Kaylor

Some Thoughts About Science

theory

social justice

science

I’ve been reflecting on the quote below. The language is unfortunately gendered, but perhaps some context is that the author was writing around 1000 AD.

Andy Grogan-Kaylor

Cohen’s d Calculator

Calculating and Visualizing Effect Sizes.

stats

Let’s imagine that you are studying an outcome like a mental health outcome.

Andy Grogan-Kaylor

Everything is Obvious Once You Know The Answer

Are the results of social science so ‘obvious’?

stats

social justice

science

I have been thinking a lot about the idea that Everything Is Obvious, Once You Know The Answer, as detailed in the book with this title by Duncan Watts.

Andy Grogan-Kaylor

Two Page Stata

Content updates and clarifications

stats

I’ve made updates to Two Page Stata: https://agrogan1.github.io/Stata/two-page-stata/TwoPageStata.pdf [HTML].

Andy Grogan-Kaylor

Quantitative Literacy

stats

workflow

social justice

science

I have been thinking a lot about this idea.

Andy Grogan-Kaylor

GIS and Mapping

Notes for a GIS Course Under Development.

GIS

I’ve been working on some ideas for a GIS and Mapping Course that may happen some day.

Andy Grogan-Kaylor

A Logic Model Using the `mermaid` Diagram Language

workflow

Logic models are used extensively in program development and program evaluation. I have worked on a logic model in graphviz. Here is an implementation using the mermaid graph…

Andy Grogan-Kaylor

Updated UNICEF Colors for Stata Graphs

stats

dataviz

I’ve updated my UNICEF Colors for Stata Graphs, using the most recent version of official colors for UNICEF.

Andy Grogan-Kaylor

Why Stata Is Better (At Graphing) Than R

stats

dataviz

Both R and Stata are programs with strong data visualization and analysis capabilities. However, Stata’s capabilities as a data visualization program are sometimes…

Andy Grogan-Kaylor

Can Stata Make An Aesthetically Appealing Graph?

stats

dataviz

Another attempt to make an aesthetically appealing graph with Stata.

Andy Grogan-Kaylor

Can Stata Make A Beautiful Graph?

stats

dataviz

There is sometimes a debate–shall we say–about whether Stata can make beautiful graphs, particularly in comparison to using ggplot in R. Below, I try to use as many of…

Andy Grogan-Kaylor

Bar Charts in ggplot2

stats

dataviz

While ggplot2, and the ideas of an underlying “grammar of graphics”, make some kinds of graphing easier, ggplot2 can make other types of graphing more difficult.

Andy Grogan-Kaylor

Articles With UNICEF MICS Data

Articles on parenting and child development in global context.

multilevel

MICS

I have updated the list of articles published with the UNICEF Multiple Indicator Cluster Survey (MICS) data: https://agrogan1.github.io/research.html

Andy Grogan-Kaylor

Telling Stories With Data: Comparing Program Outcomes with ggplot2

dataviz

social justice

ggplot2 is a powerful graphing library that can make beautiful graphs. ggplot2 can also help us to understand ideas of an underlying “grammar of graphics”.

Andy Grogan-Kaylor

Logic Models

Proof of Concept for Creating a Logic Model in graphviz.

workflow

Logic models are used extensively in program development and program evaluation.

Andy Grogan-Kaylor

New Presentation on Meta-Analysis of Corporal Punishment

corporal punishment

I have created a new set of HTML slides presenting the results of our meta-analysis of 50 years of research on corporal punishment: https://agrogan1.github.io/research/cpmeta…

Andy Grogan-Kaylor

Cleaning Data

Resources for Stata and R

stats

workflow

I have developed a few resources for cleaning data and decided to list them all in one place.

Andy Grogan-Kaylor

Why Excel Is A Bad Format For Storing Data

stats

workflow

Excel is sometimes used as a program to collect and store data. Excel may sometimes be used because sometimes it is the only program that individuals or agencies have for…

Andy Grogan-Kaylor

Visualizing Categorical Data

Alternative approaches to visualizing categorical data

stats

dataviz

Visualizing categorical data–that that come in the form 1/0 or yes vs. no–can be a challenging task. I have put together some thoughts on visualizing categorical data, as…

Andy Grogan-Kaylor

Updated Michigan Colors for R Graphs

stats

dataviz

I’ve updated my R package for Michigan colors for R Graphs at: https://agrogan1.github.io/michigancolors/

Andy Grogan-Kaylor

Visualizing Multilevel Models

An In Development Tutorial

stats

dataviz

multilevel

I have developed a book draft on multilevel modeling, entitled Multilevel Thinking. The book draft discusses multilevel modeling in the context of cross cultural, or…

Andy Grogan-Kaylor

Visualizing Disparities in a Categorical Risk Factor or Outcome

Telling Stories With Data

stats

dataviz

social justice

Visualizing categorical data presents unique challenges. A common solution is a bar graph, which may often be the best data visualization solution.

Andy Grogan-Kaylor

Visualizing Disparities in a Continuous Risk Factor or Outcome

Telling Stories With Data

stats

dataviz

social justice

In this post, I am trying to think through some best practices in showing disparities in a continuous risk factor or continuous outcome, like levels of depression or levels…

Andy Grogan-Kaylor

Working With Dates in Stata

stats

Dates in any statistical software (Stata, R) are complicated.

Andrew Grogan-Kaylor

Bar Charts to Pie Charts: Another Look

stats

dataviz

A quick look at moving from bar charts to pie charts.

Andy Grogan-Kaylor

Data Visualization With Stata

Visualizing Data With Stata

stats

dataviz

Stata is a powerful and intuitive data analysis program. However, Stata is often under-appreciated as data visualization software. Learning how to graph in Stata is an…

Andy Grogan-Kaylor

‘Criticizing a musican is easy…’

workflow

social justice

science

I have always thought this proverb shared by Professor César Hidalgo was both valuable and profound.

Andy Grogan-Kaylor

Simpson’s Paradox

stats

Simpson’s Paradox is the idea that associations between variables that are found between two variables in the sample as a whole, can be very different (or even reversed)…

Andy Grogan-Kaylor

Simpson’s Paradox and The Aggregation Paradox

An evolving blog post

stats

multilevel

This is an evolving blog post.

Andy Grogan-Kaylor

Multilevel Workshop

An In-Development Workshop on Multilevel Modeling

stats

multilevel

I have developed a set of workshop materials based upon my draft book on multilevel modeling. The book is entitled Multilevel Thinking. The book draft discusses multilevel…

Andy Grogan-Kaylor

Telling Stories With Data: Bar Charts and Pie Charts

Conceptual Relationships Among Graphs, and the Grammar of Graphics

stats

dataviz

In this document, I talk about bar charts, stacked bar charts, and pie charts. I want to focus on the conceptual relationships between these kinds of graphs, using the idea…

Andy Grogan-Kaylor

Making a ‘Big Number’ (And Circle) With R

dataviz

Sometimes a large number (and accompanying circle) can represent a compelling visualization. This flipbook explains how to make such visualizations in R: https://agrogan1.git…

Andy Grogan-Kaylor

Multiple Principled Solutions

stats

workflow

social justice

science

One of my most recent ideas about statistical workflows is that there are certainly wrong decisions that one can make with data.

Andy Grogan-Kaylor

A Simple Visual Explanation of Simpsons Paradox

Results of an analysis or visualization may be very different depending on the number of factors accounted for.

stats

Simpson’s Paradox is the idea that associations that are found between two variables in the sample as a whole, can be very different (or even reversed) when we analyze the…

Andy Grogan-Kaylor

It’s not just what you’re born with

Sung by Dick Gaughn

poetry

It’s not just what you’re born with,

Written by Si Kahn

Why can’t numbers be beautiful too?

poetry

“Why can’t numbers be beautiful too?

You Have To Get Your Data From Somewhere

stats

dataviz

In learning R, as well as RMarkdown, one of the most difficult tasks seems to be understanding how to import data.

Andy Grogan-Kaylor

Transcendental Etude

poetry

“… a lifetime is too narrow

Welcome To My Blog

news

This is the first post in a Quarto blog. Welcome!

Andy Grogan-Kaylor

Interviewed in The Lancet Child & Adolescent Health

I was quoted in this interview in The Lancet Child & Adolescent Health on corporal punishment

corporal punishment

I was quoted in this interview in The Lancet Child & Adolescent Health on corporal punishment: The Strange Endurance of Corporal Punishment

Mauritius is #65

Mauritius is the 65th Country to Ban Corporal Punishment

corporal punishment

Mauritius is the 65th country to ban corporal punishment: https://agrogan1.github.io/research/cpbans/

Andy Grogan-Kaylor

Bar Charts in ggplot With Multiple Outcomes

stats

dataviz

By default, geom_col() assumes stat = 'identity' i.e. y is the height of the bar.

Andy Grogan-Kaylor

DSO Faculty Award

news

teaching

I was pleased to learn that I was chosen as this year’s recipient of the University of Michigan School of Social Work Doctoral Student Faculty Award.

Andy Grogan-Kaylor