app.py

import pandas as pd
import streamlit as st
import numpy as np
import pickle
import catboost
from sklearn.impute import SimpleImputer

# Load the saved model and unique values:
with open("model_and_key_components.pkl", "rb") as f:
    components = pickle.load(f)

# Extract the individual components
dt_model = components["model"]
unique_values = components["unique_values"]


st.image("https://i.ytimg.com/vi/WULwst0vW8g/maxresdefault.jpg")
st.title("Income Prediction App")

# Sidebar with input field descriptions
st.sidebar.header("Description of the Required Input Fields")
st.sidebar.markdown("**Age**: Enter the age of the individual (e.g., 25, 42, 57).")
st.sidebar.markdown("**Gender**: Select the gender of the individual (e.g., Male, Female).")
st.sidebar.markdown("**Education**: Choose the highest education level of the individual (e.g., Bachelors Degree, High School Graduate, Masters Degree).")
st.sidebar.markdown("**Worker Class**: Select the class of worker for the individual (e.g., Private, Government, Self-employed).")
st.sidebar.markdown("**Marital Status**: Choose the marital status of the individual (e.g., Married, Never married, Divorced).")
st.sidebar.markdown("**Race**: Select the race of the individual (e.g., White, Black, Asian-Pac-Islander).")
st.sidebar.markdown("**Hispanic Origin**: Choose the Hispanic origin of the individual (e.g., Mexican, Puerto Rican, Cuban).")
st.sidebar.markdown("**Full/Part-Time Employment**: Select the employment status as full-time or part-time (e.g., Full-time schedules, Part-time schedules).")
st.sidebar.markdown("**Wage Per Hour**: Enter the wage per hour of the individual (numeric value, e.g., 20.50).")
st.sidebar.markdown("**Weeks Worked Per Year**: Specify the number of weeks the individual worked in a year (numeric value, e.g., 45).")
st.sidebar.markdown("**Industry Code**: Choose the category code of the industry where the individual works (e.g., Category 1, Category 2).")
st.sidebar.markdown("**Major Industry Code**: Select the major industry code of the individual's work (e.g., Industry A, Industry B).")
st.sidebar.markdown("**Occupation Code**: Choose the category code of the occupation of the individual (e.g., Category X, Category Y).")
st.sidebar.markdown("**Major Occupation Code**: Select the major occupation code of the individual (e.g., Occupation 1, Occupation 2).")
st.sidebar.markdown("**Total Employed**: Specify the number of persons worked for the employer (numeric value, e.g., 3, 5).")
st.sidebar.markdown("**Household Stat**: Choose the detailed household and family status of the individual (e.g., Single, Married-civilian spouse present).")
st.sidebar.markdown("**Household Summary**: Select the detailed household summary (e.g., Child under 18 never married, Spouse of householder).")
st.sidebar.markdown("**Veteran Benefits**: Choose whether the individual receives veteran benefits (Yes or No).")
st.sidebar.markdown("**Tax Filer Status**: Select the tax filer status of the individual (e.g., Single, Joint both 65+).")
st.sidebar.markdown("**Gains**: Specify any gains the individual has (numeric value, e.g., 1500.0).")
st.sidebar.markdown("**Losses**: Specify any losses the individual has (numeric value, e.g., 300.0).")
st.sidebar.markdown("**Dividends from Stocks**: Specify any dividends from stocks for the individual (numeric value, e.g., 120.5).")
st.sidebar.markdown("**Citizenship**: Select the citizenship status of the individual (e.g., Native, Foreign Born- Not a citizen of U S).")
st.sidebar.markdown("**Year of Migration**: Enter the year of migration for the individual (numeric value, e.g., 2005).")
st.sidebar.markdown("**Country of Birth**: Choose the individual's birth country (e.g., United-States, Other).")
st.sidebar.markdown("**Importance of Record**: Enter the weight of the instance (numeric value, e.g., 0.9).")

# Create the input fields in the order of your DataFrame
input_data = {
    'age': 0,  # Default values, you can change these as needed
    'gender': unique_values['gender'][0],
    'education': unique_values['education'][0],
    'worker_class': unique_values['worker_class'][0],
    'marital_status': unique_values['marital_status'][0],
    'race': unique_values['race'][0],
    'is_hispanic': unique_values['is_hispanic'][0],
    'employment_commitment': unique_values['employment_commitment'][0],
    'employment_stat': unique_values['employment_stat'][0],
    'wage_per_hour': 0,  # Default value
    'working_week_per_year': 0,  # Default value
    'industry_code': 0,  # Default value
    'industry_code_main': unique_values['industry_code_main'][0],
    'occupation_code': 0,  # Default value
    'occupation_code_main': unique_values['occupation_code_main'][0],
    'total_employed': 0,  # Default value
    'household_stat': unique_values['household_stat'][0],
    'household_summary': unique_values['household_summary'][0],
    'vet_benefit': 0,  # Default value
    'tax_status': unique_values['tax_status'][0],
    'gains': 0,  # Default value
    'losses': 0,  # Default value
    'stocks_status': 0,  # Default value
    'citizenship': unique_values['citizenship'][0],
    'mig_year': 0,
    'country_of_birth_own': 'United-States',
    'importance_of_record': 0.0  # Default value
}

# Create the input fields
col1, col2, col3 = st.columns(3)

with col1:
    input_data['age'] = st.number_input("Age", min_value=0, key='age')
    input_data['gender'] = st.selectbox("Gender", unique_values['gender'], key='gender')
    input_data['education'] = st.selectbox("Education", unique_values['education'], key='education')
    input_data['worker_class'] = st.selectbox("Class of Worker", unique_values['worker_class'], key='worker_class')
    input_data['marital_status'] = st.selectbox("Marital Status", unique_values['marital_status'], key='marital_status')
    input_data['race'] = st.selectbox("Race", unique_values['race'], key='race')
    input_data['is_hispanic'] = st.selectbox("Hispanic Origin", unique_values['is_hispanic'], key='is_hispanic')
    input_data['employment_commitment'] = st.selectbox("Full/Part-Time Employment", unique_values['employment_commitment'], key='employment_commitment')
    input_data['employment_stat'] = st.selectbox("Has Own Business Or Is Self Employed", unique_values['employment_stat'], key='employment_stat')
    input_data['wage_per_hour'] = st.number_input("Wage Per Hour", min_value=0, key='wage_per_hour')

with col2:
    input_data['working_week_per_year'] = st.number_input("Weeks Worked Per Year", min_value=0, key='working_week_per_year')
    input_data['industry_code'] = st.selectbox("Category Code of Industry", unique_values['industry_code'], key='industry_code')
    input_data['industry_code_main'] = st.selectbox("Major Industry Code", unique_values['industry_code_main'], key='industry_code_main')
    input_data['occupation_code'] = st.selectbox("Category Code of Occupation", unique_values['occupation_code'], key='occupation_code')
    input_data['occupation_code_main'] = st.selectbox("Major Occupation Code", unique_values['occupation_code_main'], key='occupation_code_main')
    input_data['total_employed'] = st.number_input("Number of Persons Worked for Employer", min_value=0, key='total_employed')
    input_data['household_stat'] = st.selectbox("Detailed Household and Family Status", unique_values['household_stat'], key='household_stat')
    input_data['household_summary'] = st.selectbox("Detailed Household Summary", unique_values['household_summary'], key='household_summary')
    input_data['vet_benefit'] = st.selectbox("Veteran Benefits", unique_values['vet_benefit'], key='vet_benefit')

with col3:
    input_data['tax_status'] = st.selectbox("Tax Filer Status", unique_values['tax_status'], key='tax_status')
    input_data['gains'] = st.number_input("Gains", min_value=0, key='gains')
    input_data['losses'] = st.number_input("Losses", min_value=0, key='losses')
    input_data['stocks_status'] = st.number_input("Dividends from Stocks", min_value=0, key='stocks_status')
    input_data['citizenship'] = st.selectbox("Citizenship", unique_values['citizenship'], key='citizenship')
    input_data['mig_year'] = st.selectbox("Migration Year", unique_values['mig_year'], key='migration_year')
    input_data['country_of_birth_own'] = st.selectbox("Country of Birth", unique_values['country_of_birth_own'], key='country_of_birth_own')
    input_data['importance_of_record'] = st.number_input("Importance of Record", min_value=0, key='importance_of_record')

# Button to make predictions
if st.button("Predict"):
    # Transform the input data to a DataFrame for prediction
    input_df = pd.DataFrame([input_data])

    # Make predictions
    prediction = dt_model.predict(input_df)
    prediction_proba = dt_model.predict_proba(input_df)

    # Display prediction result
    st.subheader("Prediction")
    if prediction[0] == 1:
        st.success("This individual is predicted to have an income of over $50K.")
    else:
        st.error("This individual is predicted to have an income of under $50K")

    # Show prediction probability
    st.subheader("Prediction Probability")
    st.write(f"The probability of the individual having an income over $50K is: {prediction_proba[0][1]:.2f}")