about.qmd

---
title: "About"
---

SkinSim is a statistical modeling project focused on human skin reflectance spectra by Junhui He, Jian Kang, and Tina Lasisi.

## Data foundation

- Real data: ISSA (International Skin Spectra Archive).
- Simulated data: biophysical skin models and Monte Carlo-based spectra.

## Workflow

This website follows a reproducible, analysis-first workflow:

- analysis/: qmd files for analysis reports.
- notebooks/: ipynb files for data processing, modeling, and visualization.
- code/: reusable scripts and modeling utilities.
- data/: source and intermediate datasets.
- docs/: project documentation and references.

## Methods in this project

- Descriptive statistics to summarize the reflectance data.
- Reflectance spectrum filter to classify realistic skin reflectance spectra from synthetic ones.
- Shape analysis to explore the relationship between skin properties and reflectance shapes.
- Bayesian varying coefficient models to investigate the effects of skin parameters on skin reflectance.

## Reproducibility

The project is built with Quarto and supports both R and Python so analyses can be rendered and shared consistently as a versioned website.