Create app.py

app.py

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+import os
+import streamlit as st
+from st_aggrid import AgGrid
+import pandas as pd
+from transformers import pipeline, T5ForConditionalGeneration, T5Tokenizer
+
+# Set the page layout for Streamlit
+st.set_page_config(layout="wide")
+
+# CSS styling
+style = '''
+    <style>
+        body {background-color: #F5F5F5; color: #000000;}
+        header {visibility: hidden;}
+        div.block-container {padding-top:4rem;}
+        section[data-testid="stSidebar"] div:first-child {
+        padding-top: 0;
+    }
+     .font {                                          
+    text-align:center;
+    font-family:sans-serif;font-size: 1.25rem;}
+    </style>
+'''
+st.markdown(style, unsafe_allow_html=True)
+
+st.markdown('<p style="font-family:sans-serif;font-size: 1.9rem;"> HertogAI Table Q&A using TAPAS+Data Analysis and Model Language</p>', unsafe_allow_html=True)
+st.markdown('<p style="font-family:sans-serif;font-size: 1.9rem;"> This code is based on Jordan Skinner. I recoded and enhanced for </p>', unsafe_allow_html=True)
+st.markdown('<p style="font-family:sans-serif;font-size: 1.9rem;"> the Data analisys are (SUM, MAX, MIN, AVG, COUNT, MEAN, STDDEV) </p>', unsafe_allow_html=True)
+st.markdown("<p style='font-family:sans-serif;font-size: 0.9rem;'>Pre-trained TAPAS model runs on max 64 rows and 32 columns data. Make sure the file data doesn't exceed these dimensions.</p>", unsafe_allow_html=True)
+
+# Initialize TAPAS pipeline
+tqa = pipeline(task="table-question-answering", 
+              model="google/tapas-large-finetuned-wtq",
+              device="cpu")
+
+# Initialize T5 tokenizer and model for text generation
+t5_tokenizer = T5Tokenizer.from_pretrained("t5-small")
+t5_model = T5ForConditionalGeneration.from_pretrained("t5-small")
+
+# File uploader in the sidebar
+file_name = st.sidebar.file_uploader("Upload file:", type=['csv', 'xlsx'])
+
+# File processing and question answering
+if file_name is None:
+    st.markdown('<p class="font">Please upload an excel or csv file </p>', unsafe_allow_html=True)
+else:
+    try:
+        # Check file type and handle reading accordingly
+        if file_name.name.endswith('.csv'):
+            df = pd.read_csv(file_name, sep=';', encoding='ISO-8859-1')  # Adjust encoding if needed
+        elif file_name.name.endswith('.xlsx'):
+            df = pd.read_excel(file_name, engine='openpyxl')  # Use openpyxl to read .xlsx files
+        else:
+            st.error("Unsupported file type")
+            df = None
+
+        # Continue with further processing if df is loaded
+        if df is not None:
+            numeric_columns = df.select_dtypes(include=['object']).columns
+            for col in numeric_columns:
+                df[col] = pd.to_numeric(df[col], errors='ignore')
+
+            st.write("Original Data:")
+            st.write(df)
+
+            # Create a copy for numerical operations
+            df_numeric = df.copy()
+            df = df.astype(str)
+
+            # Display the first 5 rows of the dataframe in an editable grid
+            grid_response = AgGrid(
+                df.head(5),
+                columns_auto_size_mode='FIT_CONTENTS',
+                editable=True, 
+                height=300, 
+                width='100%',
+            )
+            
+    except Exception as e:
+        st.error(f"Error reading file: {str(e)}")
+
+    # User input for the question
+    question = st.text_input('Type your question')
+
+    # Process the answer using TAPAS and T5
+    with st.spinner():
+        if st.button('Answer'):
+            try:
+                # Get the raw answer from TAPAS
+                raw_answer = tqa(table=df, query=question, truncation=True)
+                
+                st.markdown("<p style='font-family:sans-serif;font-size: 0.9rem;'> Raw Result From TAPAS: </p>",
+                           unsafe_allow_html=True)
+                st.success(raw_answer)
+                
+                # Extract relevant information from the TAPAS result
+                answer = raw_answer['answer']
+                aggregator = raw_answer.get('aggregator', '')
+                coordinates = raw_answer.get('coordinates', [])
+                cells = raw_answer.get('cells', [])
+                
+                # Construct a base sentence replacing 'SUM' with the query term
+                base_sentence = f"The {question.lower()} of the selected data is {answer}."
+                if coordinates and cells:
+                    rows_info = [f"Row {coordinate[0] + 1}, Column '{df.columns[coordinate[1]]}' with value {cell}" 
+                                 for coordinate, cell in zip(coordinates, cells)]
+                    rows_description = " and ".join(rows_info)
+                    base_sentence += f" This includes the following data: {rows_description}."
+
+                # Generate a fluent response using the T5 model, rephrasing the base sentence
+                input_text = f"Given the question: '{question}', generate a more human-readable response: {base_sentence}"
+
+                # Tokenize the input and generate a fluent response using T5
+                inputs = t5_tokenizer.encode(input_text, return_tensors="pt", max_length=512, truncation=True)
+                summary_ids = t5_model.generate(inputs, max_length=150, num_beams=4, early_stopping=True)
+
+                # Decode the generated text
+                generated_text = t5_tokenizer.decode(summary_ids[0], skip_special_tokens=True)
+
+                # Display the final generated response
+                st.markdown("<p style='font-family:sans-serif;font-size: 0.9rem;'> Final Generated Response with LLM: </p>", unsafe_allow_html=True)
+                st.success(generated_text)
+
+            except Exception as e:
+                st.warning("Please retype your question and make sure to use the column name and cell value correctly.")
+  
+            try:
+                # Get raw answer again from TAPAS
+                raw_answer = tqa(table=df, query=question, truncation=True)
+
+                # Display raw result for debugging purposes
+                st.markdown("<p style='font-family:sans-serif;font-size: 0.9rem;'> Raw Result: </p>", unsafe_allow_html=True)
+                st.success(raw_answer)
+
+                # Processing the raw_answer
+                processed_answer = raw_answer['answer'].replace(';', ' ')  # Clean the answer text
+                row_idx = raw_answer['coordinates'][0][0]  # Row index from TAPAS
+                col_idx = raw_answer['coordinates'][0][1]  # Column index from TAPAS
+                column_name = df.columns[col_idx]  # Column name from the DataFrame
+                row_data = df.iloc[row_idx].to_dict()  # Row data corresponding to the row index
+
+                # Handle different types of answers (e.g., 'SUM', 'MAX', 'MIN', 'AVG', etc.)
+                if 'SUM' in processed_answer:
+                    summary_type = 'sum'
+                    numeric_value = df_numeric[column_name].sum()
+                elif 'MAX' in processed_answer:
+                    summary_type = 'maximum'
+                    numeric_value = df_numeric[column_name].max()
+                elif 'MIN' in processed_answer:
+                    summary_type = 'minimum'
+                    numeric_value = df_numeric[column_name].min()
+                elif 'AVG' in processed_answer or 'AVERAGE' in processed_answer:
+                    summary_type = 'average'
+                    numeric_value = df_numeric[column_name].mean()
+                elif 'COUNT' in processed_answer:
+                    summary_type = 'count'
+                    numeric_value = df_numeric[column_name].count()
+                elif 'MEDIAN' in processed_answer:
+                    summary_type = 'median'
+                    numeric_value = df_numeric[column_name].median()
+                elif 'STD' in processed_answer or 'STANDARD DEVIATION' in processed_answer:
+                    summary_type = 'std_dev'
+                    numeric_value = df_numeric[column_name].std()
+                else:
+                    summary_type = 'value'
+                    numeric_value = processed_answer  # In case of a general answer
+
+                # Build a natural language response based on the aggregation type
+                if summary_type == 'sum':
+                    natural_language_answer = f"The total {column_name} is {numeric_value}."
+                elif summary_type == 'maximum':
+                    natural_language_answer = f"The highest {column_name} is {numeric_value}, recorded for '{row_data.get('Name', 'Unknown')}'."
+                elif summary_type == 'minimum':
+                    natural_language_answer = f"The lowest {column_name} is {numeric_value}, recorded for '{row_data.get('Name', 'Unknown')}'."
+                elif summary_type == 'average':
+                    natural_language_answer = f"The average {column_name} is {numeric_value}."
+                elif summary_type == 'count':
+                    natural_language_answer = f"The number of entries in {column_name} is {numeric_value}."
+                elif summary_type == 'median':
+                    natural_language_answer = f"The median {column_name} is {numeric_value}."
+                elif summary_type == 'std_dev':
+                    natural_language_answer = f"The standard deviation of {column_name} is {numeric_value}."
+                else:
+                    natural_language_answer = f"The {column_name} value is {numeric_value} for '{row_data.get('Name', 'Unknown')}'."
+
+                # Display the final natural language answer
+                st.markdown("<p style='font-family:sans-serif;font-size: 0.9rem;'> Analysis Results: </p>", unsafe_allow_html=True)
+                st.success(f"""
+                    • Answer: {natural_language_answer}
+
+                    Data Location:
+                    • Row: {row_idx + 1}
+                    • Column: {column_name}
+
+                    Additional Context:
+                    • Full Row Data: {row_data}
+                    • Query Asked: "{question}"
+                """)
+
+            except Exception as e:
+                st.warning("Please retype your question and make sure to use the column name and cell value correctly.")