editing docs

Author: wholmgren

docs/sphinx/source/package_overview.rst

@@ -56,7 +56,7 @@ configuration at a handful of sites listed below.
     module = sandia_modules['Canadian_Solar_CS5P_220M___2009_']
     inverter = sapm_inverters['ABB__MICRO_0_25_I_OUTD_US_208_208V__CEC_2014_']
     
-    # specify constant ambient air temp and wind
+    # specify constant ambient air temp and wind for simplicity
     temp_air = 20
     wind_speed = 0
 

pvlib/atmosphere.py

@@ -143,12 +143,12 @@ def absoluteairmass(airmass_relative, pressure=101325.):
 
 def relativeairmass(zenith, model='kastenyoung1989'):
     '''
-    Gives the relative (not pressure-corrected) airmass
+    Gives the relative (not pressure-corrected) airmass.
 
-    Gives the airmass at sea-level when given a sun zenith angle, z (in 
-    degrees). 
-    The "model" variable allows selection of different airmass models
-    (described below). "model" must be a valid string. If "model" is not 
+    Gives the airmass at sea-level when given a sun zenith angle
+    (in degrees). 
+    The ``model`` variable allows selection of different airmass models
+    (described below). If ``model`` is not 
     included or is not valid, the default model is 'kastenyoung1989'.
 
     Parameters

pvlib/location.py

@@ -189,7 +189,8 @@ def get_clearsky(self, times, model='ineichen', **kwargs):
             solpos = self.get_solarposition(times, **kwargs)
             cs = clearsky.haurwitz(solpos['apparent_zenith'])
         else:
-            raise ValueError('{} is not a valid clear sky model'.format(model))
+            raise ValueError('{} is not a valid clear sky model'
+                             .format(model))
 
         return cs
 
@@ -199,9 +200,9 @@ def get_airmass(self, times=None, solar_position=None,
         """
         Calculate the relative and absolute airmass.
         
-        Function will calculate the solar zenith and apparent zenith angles,
-        and choose the appropriate one.
-        
+        Automatically chooses zenith or apparant zenith
+        depending on the selected model.
+
         Parameters
         ----------
         times : None or DatetimeIndex
@@ -243,4 +244,4 @@ def get_airmass(self, times=None, solar_position=None,
         airmass['airmass_absolute'] = airmass_absolute
 
         return airmass
-                                      
+