Update README.md

Author: emmanuel6474

README.md

@@ -1,7 +1,7 @@
 # Surv-TCAV on PBC-276
 
 End-to-end pipeline for XGBoost AFT on PBC-276 with TreeSHAP and concept-based Surv-TCAV.  
-Figures are written to `figures/`.
+Figures are written to `figures/`, metrics to `results/`.
 
 ## Environment
 ```bash
@@ -20,16 +20,25 @@ Command-line options:
 python pbc_surv_tcav.py --help
 ```
 
+### Faster run (for CI/CODECHECK)
+```bash
+python pbc_surv_tcav.py --repeats 5 --no_shap
+```
+
 ## Outputs
-- Console: 25× 80/20 validation, C-index and IBS summary, Surv-TCAV effects
-- Figures:
-  - `figures/validation_metrics.png`
-  - `figures/treeshap_summary.png`
-  - `figures/tcav_bar.png`
+- **Console**: 25× 80/20 validation, C-index and IBS summary, Surv-TCAV effects  
+- **Results (CSV)**:  
+  - results/split_metrics.csv  
+  - results/summary_metrics.csv  
+- **Figures**:  
+  - figures/validation_metrics.png  
+  - figures/treeshap_summary.png (optional; disable with --no_shap)  
+  - figures/tcav_bar.png  
+  - figures/calibration_tstar.png  
 
 ## Data
-PBC dataset mirrored via Rdatasets (Therneau, survival package):  
-https://vincentarelbundock.github.io/Rdatasets/csv/survival/pbc.csv
+PBC dataset mirrored via Rdatasets (Therneau, *survival* package):  
+<https://vincentarelbundock.github.io/Rdatasets/csv/survival/pbc.csv>
 
 ## License
 MIT