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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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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

DarrenWiens2

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

deepa_davis

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

deepa_davis

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

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

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

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