Recently Published
Evaluating Classification Model Performance
Null error rate, confusion matrices, and accuracy, precision, recall and F1 at thresholds 0.2, 0.5 and 0.8 for a penguin sex classifier, with use cases for each threshold.
Pendugaan Parameter dan Uji Hipotesis Satu Proporsi serta Uji Kebaikan Suai Chi-Square
Uji hipotesis satu proporsi (Uji Z) dan Uji Kebaikan Suai Chi-Square, lengkap dengan perhitungan manual, sintaks R, output, dan interpretasi
Health and Economic Impact of Severe Weather Events in the US
An exploratory data analysis of the NOAA Storm Database to identify the severe weather events with the greatest health and economic impacts in the US.
Invitation
Wedding invitation
simple-linear-regression
A short interactive presentation introducing simple linear regression: the model, least-squares estimation, diagnostic plots, and a 3D visualization of the least-squares error surface. Built with R Markdown (ioslides), ggplot2, and plotly.