add dbscan

frontend/pages/clustering:_dbscan.py

@@ -11,8 +11,20 @@ if "data" in st.session_state:
 
     with st.form("my_form"):
         data_name = st.multiselect("Data Name",data.select_dtypes(include="number").columns, max_selections=2)
+        eps = st.slider("eps", min_value=0.0, max_value=1.0,value=0.5,step=0.01)
+        min_samples = st.number_input("min_samples",step=1,min_value=1,value=5)
         st.form_submit_button('launch')
 
+    if len(data_name) == 2:
+        x = data[data_name].to_numpy()
+        
+        dbscan = DBSCAN(eps=eps, min_samples=min_samples)
+        y_dbscan = dbscan.fit_predict(x)
+
+
+        fig, ax = plt.subplots(figsize=(12,8))
+        plt.scatter(x[:, 0], x[:, 1], c=y_dbscan, s=50, cmap='viridis')
+        st.pyplot(fig)
 
 else:
     st.error("file not loaded")