how to use inpolygon ?

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pruth
pruth 2015-10-19
回答： Image Analyst 2015-10-19
i have table. 1st column is latitude 2nd is longitude and 3rd is bromine data. this is a girded data.this data is actually collected by polar satellite .
so now i want bromine data over latitude = -37.48; longitude = 77.34; using polygon. can anybody help?

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回答（1 个）

Image Analyst
Image Analyst 2015-10-19
Why do you want to use inpolygon()? Just use indexing:
indexesToUses = (latitude > -37.48) & (longitude > 77.34);
extractedBroming = bromine(indexesToUses);

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