Update README.md

README.md

@@ -46,6 +46,9 @@ size_categories:
 - Original Paper and Dataset [here](https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/DBW86T)
 - Kaggle dataset [here](https://www.kaggle.com/datasets/kmader/skin-cancer-mnist-ham10000?resource=download)
 
-This is a contribution to open sourced data in hugging face for image data. Images can be obtained from above links. I do not own any rights to above images.
+This is a contribution to open sourced data in hugging face for image data. Images can be obtained from above links. 
+Train test split was done using a stratified splitting by cancer/diagnosis type. A copy of the data stratificatation can be obtained on my github [here](https://github.com/marmal88/skin_cancer).
+
+I do not own any rights to above images.
 
 [More Information needed](https://github.com/huggingface/datasets/blob/main/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)