Update pubmed25_debug.py

pubmed25_debug.py

@@ -20,7 +20,7 @@ import gzip
 import xml.etree.ElementTree as ET # Using standard ElementTree
 
 import datasets
-
+import random
 
 logger = datasets.logging.get_logger(__name__)
 
@@ -40,9 +40,27 @@ _HOMEPAGE = "https://www.nlm.nih.gov/databases/download/pubmed_medline.html"
 
 _LICENSE = "" # Assuming standard NLM terms apply, check source for specifics
 
-# Example URLs - Replace with desired baseline/update files
-_URLs = [f"https://ftp.ncbi.nlm.nih.gov/pubmed/baseline/pubmed25n{i:04d}.xml.gz" for i in range(1273, 1274)]
+# Parameters
+total_files = 1274
+num_bins = 50
+total_urls = 20
+
+# Compute bin size
+bin_size = total_files // num_bins
+
+# Sample one random file from each bin
+selected_indices = []
+for b in range(num_bins):
+    start = b * bin_size + 1
+    end = min((b + 1) * bin_size + 1, total_files + 1)
+    if start < end:
+        selected_indices.append(random.randint(start, end - 1))
+
+# Ensure we only keep 20 URLs total (in case rounding leads to more)
+selected_indices = sorted(random.sample(selected_indices, total_urls))
 
+# Create URLs
+_URLs = [f"https://ftp.ncbi.nlm.nih.gov/pubmed/baseline/pubmed25n{i:04d}.xml.gz" for i in selected_indices]
 
 # Copyright Ferry Boender, released under the MIT license.
 # Modified by @Narsil to handle more oddities