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SUMMATION USING ARC MAP(RASTER CALCULATOR)

deepa_davis

WHILE CALCULATION AN EXPRESSION HOW TO PERFORM SUMMATION WHICH IS NOT FOUND IN RASTER CALCULATOR.

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deepa_davis

it is an equation to find sediment delivery ratio ,where equation is exponential summation of length of i th cell divided by slope of the i th cell

DanPatterson_Retired

Their is no sigma...you either select and add the grids one at a time using the raster calculator or the Plus tool within a loop in a script that you will have to write.

deepa_davis

I mean summation of values from i=0 to i=24 (not simple addition).summation(sigma) is not found in rater calculator.

deepa_davis

Sir i mean calculation from (i=0 to m a/b)

DarrenWiens2

Summation (I assume you mean adding pixel locations between rasters) in the Raster Calculator is achieved through the plus sign.

DanPatterson_Retired

Move to the Spatial Analyst Place in order to get an answer.

Summation is accomplished using the Plus tool in ArcToolbox, spatial Analyst Tools

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