## Creating test data

## Data used
The data used in the vignette is a small Xenium sample from a
lung fibrosis study (Vannan & Lyu et. al, 2025). It can be downloaded at
[GSE250346](https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE250346).

The raw Xenium output is read into R and downsampled to 3,000 cells to comply
with BiocConductor requirements on package data size. For exact steps please
refer to the vignette.
