Difficulty in executing code in Raster Calculator

Question

Hi

I am tring to execute an expression in Raster Calculator. It's rather a long piece of code:

Con("LULCyear2005_2006_500m_Raster" == 1 & "soilRaster_reclass" == 1 & "slope_reclass" == 1, 0.5, Con("LULCyear2005_2006_500m_Raster" == 1 & "soilRaster_reclass" == 1 & "slope_reclass" == 2, 0.55, Con("LULCyear2005_2006_500m_Raster" == 1 & "soilRaster_reclass" == 1 & "slope_reclass" == 3, 0.6, Con("LULCyear2005_2006_500m_Raster" ==28 &  "soilRaster_reclass" == 1 & "slope_reclass" == 1, 0.4,  Con("LULCyear2005_2006_500m_Raster" == 28 & "soilRaster_reclass" == 1 & "slope_reclass" == 2, 0.7, Con("LULCyear2005_2006_500m_Raster" == 28 & "soilRaster_reclass" == 1 & "slope_reclass" == 3, 0.82, Con("LULCyear2005_2006_500m_Raster" == 28 & "soilRaster_reclass" == 2 & "slope_reclass" == 1, 0.3, Con("LULCyear2005_2006_500m_Raster" == 28 & "soilRaster_reclass" == 2 & "slope_reclass" == 2, 0.4, Con("LULCyear2005_2006_500m_Raster" == 28 & "soilRaster_reclass" == 2 & "slope_reclass" == 3, 0.52, Con("LULCyear2005_2006_500m_Raster" == 71, 0.33, Con("LULCyear2005_2006_500m_Raster" == 77 & "soilRaster_reclass" == 1 & "slope_reclass" == 1, 0.4, Con("LULCyear2005_2006_500m_Raster" == 78 & "soilRaster_reclass" == 1 & "slope_reclass" == 2, 0.5, Con("LULCyear2005_2006_500m_Raster" == 78 & "soilRaster_reclass" == 1 & "slope_reclass" == 3, 0.6, Con("LULCyear2005_2006_500m_Raster" == 78 & "soilRaster_reclass" == 2 & "slope_reclass" == 1, 0.1, Con("LULCyear2005_2006_500m_Raster" == 78 & "soilRaster_reclass" == 2 & "slope_reclass" == 3, 0.25, Con("LULCyear2005_2006_500m_Raster" == 78 & "soilRaster_reclass" == 2 & "slope_reclass" == 3, 0.3, Con("LULCyear2005_2006_500m_Raster" == 109, 0.41, Con("LULCyear2005_2006_500m_Raster" == 141,1))))))))))))))))))

Its for preparing a map with appropriate Runoff coefficient value based on Landuse, Slope and Soil type. Unfortunately, each time I run it I come accross this error message:

Please Help

DanPatterson_Retired · Answer

A  Combine followed by a reclass is useful to avoid such ugly and error prone expressions... for next time

Combine—Help | ArcGIS for Desktop

ChrisDonohue__GISP · Answer

Another idea - did the output raster assignment assignment get missed?  Or is it there but did not get copied over into your example?

Using the Con tool in Map Algebra
ArcGIS Help 10.1 
Format:
OutRas = Con (in_conditional_raster, in_true_raster_or_constant, {in_false_raster_or_constant}, {where_clause})
Example:
OutRas = Con(SlopeRas, 10, 1, "VALUE < 15")

Chris Donohue, GISP

EDIT - looks like Darren and Jayanta likely have found the root cause while I was typing this.

JayantaPoddar · Answer

Try putting the parentheses around the statements involving "=="

Con(("LULCyear2005_2006_500m_Raster" == 1) & ("soilRaster_reclass" == 1) & ("slope_reclass" == 1), 0.5, Con(("LULCyear2005_2006_500m_Raster" == 1) & ("soilRaster_reclass" == 1) & ("slope_reclass" == 2), 0.55...