ADD: Testing, new constraint for points, code reorganization and

cleanup.

pydda/constraints/__init__.py

@@ -20,6 +20,9 @@
 
      make_constraint_from_wrf
      add_hrrr_constraint_to_grid
+     make_constraint_from_era_interim
+     download_needed_era_data
+     get_iem_obs
 
 """
 

pydda/constraints/station_data.py

@@ -30,13 +30,20 @@ def get_iem_obs(Grid, window=60.):
     -------
     station_data: list of dicts
         A list of dictionaries containing the following entries as keys:
-           lat - Latitude of the site (float)
-           lon - Longitude of the site (float)
-           u - u wind at the site (float)
-           v - v wind at the site (float)
-           w - w wind at the site (assumed to be 0) (float)
-           name - Station ID (string)
-           x, y, z - The (x, y, z) coordinates of the site in the Grid.
+
+        *lat* - Latitude of the site (float)
+
+        *lon* - Longitude of the site (float)
+
+        *u* - u wind at the site (float)
+
+        *v* - v wind at the site (float)
+
+        *w* - w wind at the site (assumed to be 0) (float)
+
+        *site_id* - Station ID (string)
+
+        *x*, *y*, *z* - The (x, y, z) coordinates of the site in the Grid. (floats)
     """
 
     # First query the database for all of the JSON info for every station

pydda/cost_functions/__init__.py

@@ -72,6 +72,8 @@
     calculate_model_cost
     calculate_model_gradient
     calculate_fall_speed
+    calculate_point_cost
+    calculate_point_gradient
 """
 
 
@@ -88,4 +90,5 @@
 from .cost_functions import calculate_vertical_vorticity_gradient
 from .cost_functions import calculate_model_cost
 from .cost_functions import calculate_model_gradient
+from .cost_functions import calculate_point_cost, calculate_point_gradient
 from .cost_functions import J_function, grad_J