pyplot express example

pyplot.express.py

# Create an interactive bar chart with two bars per date
fig = go.Figure()
fig.add_trace(go.Bar(
    x=daily_formula_intake.index,
    y=daily_formula_intake.values,
    name='Formula'
))
fig.add_trace(go.Bar(
    x=daily_expressed_intake.index,
    y=daily_expressed_intake.values,
    name='Expressed'
))

# Add linear regression line
fig.add_trace(go.Scatter(
    x=daily_total_intake.index,
    y=y_pred,
    mode='lines',
    name='Linear Regression'
))

fig.update_layout(
    title='Daily Total Milk Intake (Formula + Expressed)',
    xaxis_title='Date',
    yaxis_title='Total Amount (ml)',
    barmode='stack'  # Stack the bars for formula and expressed
)
fig.show()