Update vectorizer.py

controllers/vectorizer.py

@@ -41,6 +41,8 @@ def vectorize(article):
     df = df[['id','site','title','titleCN','category','author','content',
              'publishDate','link','attachment','sentimentScore','sentimentLabel']]
     df['sentimentScore'] = df['sentimentScore'].round(2)
+    df['sentimentScore'] = df['sentimentScore'].astype(float)
+    df['publishDate'] = pd.to_datetime(df['publishDate'])
     loader = DataFrameLoader(df, page_content_column="content")
     documents = loader.load()
     text_splitter = RecursiveCharacterTextSplitter(