arcgis raster calculator error

[Alexey]

Hi,

I'm new to this board so i dont really know if im right in this thread or if you need more information.

I have to classify a rasterlayer of rivers. So i use the Raster Calculator with the code:

Con("riverclass1", 2,"riverclass1","(Value >= 40000) & (Value < 300000)")

But it gives me the Error: invalid sql statement used.

I only learned java so i dont really know the python syntax. So is the Syntax  wrong or some other stuff broke?

Thank you

[Lurker]

hem, try to define data in this case riverclass1 and the condition you want to classified and define the class after it

some example of this Con function :

http://forums.arcgis.com/threads/21664-con-function-use-in-the-raster-calculator

and

http://forums.arcgis.com/threads/14493-Raster-Calculator-CON-statement

hope it help

[3dbu]

try some thing like this

Con("grid1" < 5, 0, Con("grid1" < 6, 1, ("grid1" - 3) / 6.0))