# Logistic regression with categorical data in Ruby

I had some fun analysing the shelter animal data from kaggle using the Ruby gems daru for data wrangling and statsample-glm for model fitting. In this blog post, I want to demonstrate that data wrangling and statistical modeling is not an area of absolute predominance of Python and R, but that it is possible in Ruby too (though, currently to a much lesser extent).

# "Testing Statistical Hypotheses" and "Theory of Point Estimation" impressions

I spent much of the last two months reading Lehmann & Romano “Testing Statistical Hypotheses” (3rd ed.) and Lehmann & Casella “Theory of Point Estimation” (2nd ed.), abbr. TSH and TPE. The following is a collection of random facts observations I made while reading TSH and TPE. The choice of topics is biased towards application in regression models.