Update app.py

app.py

@@ -16,13 +16,13 @@ def predict_1(SOC: float):
     return prediction.round(2)
 
 def predict_2(SOC: float, Cy: float):
-    prediction = 2.03 - 0.008*Cy - 0.008*SOC
+    prediction = np.array(2.03 - 0.008*Cy - 0.008*SOC)
     return prediction.round(2)
 
 def predict_3(SOC: float, Cy: float, eCa: float, eMg: float, eK: float, eAlH: float):
     ECEC = eCa + eMg + eK + eNa + eAlH
     xK = eK/ECEC
-    prediction = 1.53 - 0.076*SOC + 0.004*Cy - 2.04*xK
+    prediction = np.array(1.53 - 0.076*SOC + 0.004*Cy - 2.04*xK)
     return prediction.round(2)
     
 def predict_4(pH: float, EC: float, CCE: float, SOC: float, Sa: float, Si: float,