updated new

app.py

@@ -2,7 +2,6 @@
 import gradio as gr
 import pandas as pd
 import matplotlib.pyplot as plt
-import io
 
 df = pd.DataFrame()
 
@@ -83,6 +82,32 @@ def search_employee(query):
     return df[df["Name"].str.lower().str.contains(query.lower())]
 
 
+def show_missing():
+    if df.empty:
+        return "⚠️ Please load a CSV first!"
+    missing = df.isnull().sum()
+    percent = (df.isnull().mean() * 100).round(2)
+    report = "### 🔎 Missing Values Report\n\n"
+    for col in df.columns:
+        report += f"- **{col}** → {missing[col]} missing ({percent[col]}%)\n"
+    return report
+
+
+def fill_missing():
+    global df
+    if df.empty:
+        return None, "⚠️ Please load a CSV first!"
+
+    # Fill numeric cols with mean, categorical with mode
+    for col in df.columns:
+        if df[col].dtype in ["float64", "int64"]:
+            df[col] = df[col].fillna(df[col].mean())
+        else:
+            df[col] = df[col].fillna(df[col].mode()[0] if not df[col].mode().empty else "Unknown")
+
+    return df, "✅ Missing values filled (mean for numeric, mode for categorical)"
+
+
 # Build Gradio UI
 with gr.Blocks() as demo:
     gr.Markdown("## ✨ Employee Data Analysis Dashboard ✨")
@@ -94,24 +119,35 @@ with gr.Blocks() as demo:
     with gr.Row():
         search_box = gr.Textbox(label="🔍 Search Employee")
         analysis_btn = gr.Button("📊 Show Analysis")
-    
-    data_table = gr.Dataframe(headers=["Name", "Age", "Salary", "Performance Score", "Age Group"], label="Employee Data")
+
+    data_table = gr.Dataframe(
+        headers=["Name", "Age", "Salary", "Performance Score", "Age Group"], 
+        label="Employee Data"
+    )
     analysis_output = gr.Markdown()
-    
+
     with gr.Row():
         salary_btn = gr.Button("💰 Salary Chart")
         performance_btn = gr.Button("🏆 Performance Chart")
 
-    # ✅ Fixed: use "filepath"
     salary_plot = gr.Image(type="filepath", label="Salary Chart")
     performance_plot = gr.Image(type="filepath", label="Performance Chart")
 
+    # 🔎 Missing value section
+    with gr.Row():
+        missing_btn = gr.Button("🔎 Show Missing Values")
+        fill_btn = gr.Button("🛠 Fill Missing Values")
+
+    missing_output = gr.Markdown()
+
     # Events
     file_input.change(load_csv, inputs=file_input, outputs=[data_table, status])
     search_box.submit(search_employee, inputs=search_box, outputs=data_table)
     analysis_btn.click(show_analysis, inputs=None, outputs=analysis_output)
     salary_btn.click(salary_chart, inputs=None, outputs=salary_plot)
     performance_btn.click(performance_chart, inputs=None, outputs=performance_plot)
+    missing_btn.click(show_missing, inputs=None, outputs=missing_output)
+    fill_btn.click(fill_missing, inputs=None, outputs=[data_table, status])
 
 if __name__ == "__main__":
     demo.launch()