changing variable names to upper case

Author: uvchik

pvlib/irradiance.py

@@ -433,7 +433,7 @@ def globalinplane(AOI, DNI, In_Plane_SkyDiffuse, GR):
 
     Notes
     ------
-    Negative beam irradiation due to aoi :math:`> 90^{\circ}` or aoi
+    Negative beam irradiation due to aoi :math:`> 90^{\circ}` or AOI
     :math:`< 0^{\circ}` is set to zero.
     '''
 

pvlib/test/test_irradiance.py

@@ -137,13 +137,13 @@ def test_perez():
 
 
 def test_globalinplane():
-    aoi = irradiance.aoi(40, 180, ephem_data['apparent_zenith'],
+    AOI = irradiance.aoi(40, 180, ephem_data['apparent_zenith'],
                          ephem_data['apparent_azimuth'])
-    am = atmosphere.relativeairmass(ephem_data['apparent_zenith'])
+    AM = atmosphere.relativeairmass(ephem_data['apparent_zenith'])
     gr_sand = irradiance.grounddiffuse(40, ghi, surface_type='sand')
     diff_perez = irradiance.perez(
         40, 180, irrad_data['DHI'], irrad_data['DNI'], dni_et,
-        ephem_data['apparent_zenith'], ephem_data['apparent_azimuth'], am)
+        ephem_data['apparent_zenith'], ephem_data['apparent_azimuth'], AM)
     irradiance.globalinplane(
-        AOI=aoi, DNI=irrad_data['DNI'], In_Plane_SkyDiffuse=diff_perez,
+        AOI=AOI, DNI=irrad_data['DNI'], In_Plane_SkyDiffuse=diff_perez,
         GR=gr_sand)