Update mc4-es-sampled.py

mc4-es-sampled.py

@@ -38,10 +38,11 @@ _CONFIGS = [
     "gaussian",
 ]
 
+# The last validation shard is not working in the original allen/c4 repo
 _N_SHARDS_PER_SPLIT = {
-    "random": {"train": 1024, "validation": 16},
-    "stepwise": {"train": 1024, "validation": 16},
-    "gaussian": {"train": 1024, "validation": 16},
+    "random": {"train": 1024, "validation": 15},
+    "stepwise": {"train": 1024, "validation": 15},
+    "gaussian": {"train": 1024, "validation": 15},
 }
 
 
@@ -88,7 +89,7 @@ class Mc4EsSampled(datasets.GeneratorBasedBuilder):
         data_urls["train"] = [
             _DATA_URL_TRAIN.format(
                 config=config,
-                index=index,
+                index=index + 1,
                 n_shards=_N_SHARDS_PER_SPLIT[config]["train"],
             )
             for config in self.config.configs