Update mc4-es-sampled.py

mc4-es-sampled.py

@@ -38,11 +38,10 @@ _CONFIGS = [
     "gaussian",
 ]
 
-# The last validation shard is not working in the original allen/c4 repo
 _N_SHARDS_PER_SPLIT = {
-    "random": {"train": 1024, "validation": 15},
-    "stepwise": {"train": 1024, "validation": 15},
-    "gaussian": {"train": 1024, "validation": 15},
+    "random": {"train": 1024, "validation": 16},
+    "stepwise": {"train": 1024, "validation": 16},
+    "gaussian": {"train": 1024, "validation": 16},
 }
 
 
@@ -101,7 +100,7 @@ class Mc4EsSampled(datasets.GeneratorBasedBuilder):
                 n_shards=_N_SHARDS_PER_SPLIT[config]["validation"],
             )
             for config in self.config.configs
-            for index in range(_N_SHARDS_PER_SPLIT[config]["validation"])
+            for index in range(_N_SHARDS_PER_SPLIT[config]["validation"] - 1)  # the last validation shard is not working in the original allen/c4 repo
         ]
         train_downloaded_files = dl_manager.download(data_urls["train"])
         validation_downloaded_files = dl_manager.download(data_urls["validation"])