diff --git a/code/pages/3_Playground.py b/code/pages/3_Playground.py
new file mode 100644
index 0000000..e25c9e2
--- /dev/null
+++ b/code/pages/3_Playground.py
@@ -0,0 +1,143 @@
+import s3fs
+import streamlit as st
+from sklearn.decomposition import PCA
+from sklearn.preprocessing import StandardScaler
+import pandas as pd
+import numpy as np
+import plotly.graph_objects as go
+from plotly.subplots import make_subplots
+from streamlit_plotly_events import plotly_events
+
+from util.streamlit import add_session_filter, data_selector
+
+ss = st.session_state
+
+fs = s3fs.S3FileSystem(anon=False)
+cache_folder = 'aind-behavior-data/foraging_nwb_bonsai_processed/'
+
+@st.cache_data(ttl=24*3600)
+def load_data(tables=['sessions']):
+    df = {}
+    for table in tables:
+        file_name = cache_folder + f'df_{table}.pkl'
+        if st.session_state.use_s3:
+            with fs.open(file_name) as f:
+                df[table + '_bonsai'] = pd.read_pickle(f)
+        else:
+            df[table + '_bonsai'] = pd.read_pickle(file_name)
+    return df
+
+def app():
+    
+    with st.sidebar:
+        add_session_filter(if_bonsai=True)
+        data_selector()
+        
+    if not hasattr(ss, 'df'):
+        st.write('##### Data not loaded yet, start from Home:')
+        st.page_link('Home.py', label='Home', icon="🏠")
+        return
+    
+    df = load_data()['sessions_bonsai']
+    
+    # -- get cols --
+    col_task = [s for s in df.metadata.columns
+                if not any(ss in s for ss in ['lickspout', 'weight', 'water', 'time', 'rig',
+                                              'user_name', 'experiment', 'task', 'notes']
+                )
+    ]
+    
+    col_perf = [s for s in df.session_stats.columns
+                if not any(ss in s for ss in ['performance']
+                )
+    ]
+    
+    do_pca(ss.df_session_filtered.loc[:, ['subject_id', 'session'] + col_perf], 'performance')
+    do_pca(ss.df_session_filtered.loc[:, ['subject_id', 'session'] + col_task], 'task')
+
+    
+def do_pca(df, name):
+    df = df.dropna(axis=0, how='any')
+    
+    # Standardize the features
+    x = StandardScaler().fit_transform(df.drop(columns=['subject_id', 'session']))
+    
+    # Apply PCA
+    pca = PCA(n_components=10)  # Reduce to 2 dimensions for visualization
+    principalComponents = pca.fit_transform(x)
+        
+    # Create a new DataFrame with the principal components
+    principalDf = pd.DataFrame(data=principalComponents)
+    principalDf.index = df.set_index(['subject_id', 'session']).index
+    
+    principalDf.reset_index(inplace=True)
+    
+    # -- trajectory --
+    fig = go.Figure()
+
+    for mouse_id in principalDf['subject_id'].unique():
+        subset = principalDf[principalDf['subject_id'] == mouse_id]
+        
+        # Add a 3D scatter plot for the current group
+        fig.add_trace(go.Scatter3d(
+            x=subset[0],
+            y=subset[1],
+            z=subset[2],
+            mode='lines+markers',
+            marker=dict(size=subset['session'].apply(
+                lambda x: 5 + 15*(x/20))),
+            name=f'{mouse_id}',  # Name the trace for the legend
+        ))
+            
+    fig.update_layout(title=name,
+                        scene=dict(
+                            xaxis_title='Dim1',
+                            yaxis_title='Dim2',
+                            zaxis_title='Dim3'
+                        ),
+                        width=1300,
+                        height=1000,
+                        font_size=15,
+                        )
+    st.plotly_chart(fig)
+    
+    # -- variance explained --
+    var_explained = pca.explained_variance_ratio_
+    fig = go.Figure()
+    fig.add_trace(go.Scatter(
+        x=np.arange(1, len(var_explained)+1),
+        y=np.cumsum(var_explained),
+        )
+    )    
+    fig.update_layout(title='Variance Explained',
+                      yaxis=dict(range=[0, 1]),
+                      width=300,
+                      height=400,
+                      font_size=15,
+                      )
+    st.plotly_chart(fig)
+    
+    # -- pca components --
+    pca_components = pd.DataFrame(pca.components_, 
+                                  columns=df.drop(columns=['subject_id', 'session']).columns)
+    pca_components
+    fig = make_subplots(rows=3, cols=1)
+    
+    # In vertical subplots, each subplot show the components of a principal component
+    for i in range(3):
+        fig.add_trace(go.Bar(
+            x=pca_components.columns,
+            y=pca_components.loc[i],
+            name=f'PC{i+1}',
+        ), row=i+1, col=1)
+        
+        fig.update_xaxes(showticklabels=i==2, row=i+1, col=1)
+        
+    fig.update_layout(title='PCA weights',
+                      width=1000,
+                      height=800,
+                      font_size=20,
+                      )
+    st.plotly_chart(fig)
+    
+app()
\ No newline at end of file
diff --git a/environment/Dockerfile b/environment/Dockerfile
index 555eb6a..5f1fd11 100644
--- a/environment/Dockerfile
+++ b/environment/Dockerfile
@@ -89,7 +89,8 @@ RUN pip install -U --no-cache-dir \
     seaborn \
     pynwb --ignore-installed ruamel.yaml\
     git+https://github.com/AllenNeuralDynamics/aind-foraging-behavior-bonsai-automatic-training.git@main\
-    pygwalker
+    pygwalker \
+    scikit-learn==1.4.1
 
 ADD "https://github.com/coder/code-server/releases/download/v4.9.0/code-server-4.9.0-linux-amd64.tar.gz" /.code-server/code-server.tar.gz
 	
diff --git a/requirements.txt b/requirements.txt
index 99671d4..3bbe467 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,6 +66,7 @@ ruamel.yaml==0.17.21
 ruamel.yaml.clib==0.2.7
 s3fs==2022.11.0
 scipy==1.10.0
+scikit-learn==1.3.2
 seaborn==0.11.2
 semver==2.13.0
 six==1.16.0