Posts

TidyTuesday (22): Cocktails

Some brief EDA of the cocktails data; features Upset plot

Scraping Weather Data

A walkthrough for scraping weather data from Wikipedia using an R-Python workflow

Norms and Penalized Regression

Some notes on the math behind penalized regression methods liek Ridge and LASSO

Quick Guide to Command Line Basics

Before graphical user interfaces (GUI), drag and drop desktops, and voice activated assistances (e.g., Siri), the only way to interact with a computer was through written commands using the command line interface (CLI).

Getting WRDS CRSP Data

Wharton Research Data Services (WRDS) is the standard finance and accounting data source for academic research. WRDS is composed of many individual datasets provided by different vendors. The two most commonly used are Compustat (for accounting data) and CRSP (for stock data).

Internal Rate of Return

Time Value of Money The internal rate of return (IRR) is simply the rate r that equates the future value of money to the present value. Despite being a foundational tool in financial analysis, the economic interpretation of this value is highly contested.

macOS Package Management

This is the first in a series of articles about package managers for various programs. Packages are optional plugins that provide some extra functionality to a program you use. They are often free and open source software (FOSS) made by individuals or consortiums.

Note, Melody, Music

Thus have I heard…