Change data types of return values

Author: SabineHaas

windpowerlib/power_output.py

@@ -34,7 +34,7 @@ def cp_curve(v_wind, rho_hub, d_rotor, cp_values):
 
     Returns
     -------
-    pandas.Series
+    pandas.Series or numpy.array
         Electrical power output of the wind turbine in W.
 
     Notes
@@ -97,7 +97,7 @@ def cp_curve_density_corr(v_wind, rho_hub, d_rotor, cp_values):
 
     Returns
     -------
-    pandas.Series
+    pandas.Series or numpy.array
         Electrical power of the wind turbine in W.
 
     Notes
@@ -136,7 +136,7 @@ def p_curve(v_wind, p_values):
 
     Returns
     -------
-    pandas.Series
+    pandas.Series or numpy.array
         Electrical power output of the wind turbine in W.
 
     Notes
@@ -175,7 +175,7 @@ def p_curve_density_corr(v_wind, rho_hub, p_values):
 
     Returns
     -------
-    pandas.Series
+    pandas.Series or numpy.array
         Electrical power output of the wind turbine in W.
 
     Notes