fix corpus split

app.py

@@ -131,6 +131,7 @@ def split_corpus(corpus, n):
     for i in range(0, len(corpus), n):
         corpus_split = corpus
         yield corpus_split[i:i + n]
+    return corpus_split
 
 def compute_coherence_values_base_lda(dictionary, corpus, texts, limit, coherence, start=2, step=1):
     coherence_values = []
@@ -261,7 +262,7 @@ def full_lda(df):
 
     corpus_split = corpus
     print('split corpus')
-    split_corpus(corpus_split, 5)
+    corpus_split = split_corpus(corpus_split, 5)
     print('after split corpus')
 
     global coherence