how to change the default value obtained from the map in arc gis

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04-27-2016 01:29 AM
MansaPrakash
New Contributor

i have obtained a flow accumulation map from the aster dem image. the value obtained from the map is 0 to 2684501. now i need to change these value to 1 to 2684501 . so please tell me the procedure to change the default value

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3 Replies
DanPatterson_Retired
MVP Emeritus

in ArcGIS online??? For arcmap...  why not add 1 to the output, otherwise you have a whole messy reclass to deal with but extending the upper range by 1 shouldn't cause an issue.  otherwise use a Con statement and reclass 0 to some other value, keeping the others the same.

MansaPrakash
New Contributor

thank you sir

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JayantaPoddar
MVP Esteemed Contributor

Depending on what you want to do with the pixels of value 0, you could either replace them with NoData or 1 using Con tool or Reclassify, as suggested by Dan Patterson

Con—Help | ArcGIS for Desktop

Reclassify—Help | ArcGIS for Desktop



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