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README.md

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+# TRACERx Expression Data
+
+VST-normalized gene expression data from the TRACERx lung cancer cohort.
+
+## Contents
+
+- `tracerx_vst_counts.parquet`: VST-normalized expression matrix (Parquet format)
+  - Rows: 20136 genes
+  - Columns: 1051 samples
+  - Size: 106.0 MB
+
+## Usage
+
+```python
+from huggingface_hub import hf_hub_download
+import pandas as pd
+
+# Download the expression data (Parquet - faster)
+local_path = hf_hub_download(
+    repo_id="jruffle/tracerx_expression_data",
+    filename="tracerx_vst_counts.parquet",
+    repo_type="dataset"
+)
+
+# Load the data
+expression_df = pd.read_parquet(local_path)
+```
+
+## Data Format
+
+- Index: Gene symbols (gene_id)
+- Columns: Sample IDs
+- Values: VST-normalized expression values
+
+## Why Parquet?
+
+Parquet format provides:
+- ~3x smaller file size than CSV
+- ~10-100x faster loading times
+- Native pandas support
+
+## License
+
+This data is provided for research purposes as part of the CRUK Datathon 2025.

tracerx_vst_counts.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:3a6dc714d935fb5765ba9552df49b2f782fa74d1e238134689b61f769ce1b8cf
+size 111147271