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2013 May 01
1
Sum objects in a column between an interval defined by conditions on another column
This comes as an application to this question: http://stackoverflow.com/questions/5896648/sum-object-in-a-column-between-an-interval-defined-by-another-column/5897695#comment23166107_5897695 What I would like to know is how to adjust the answer if I want to sum the values in B, for ((A[i+1]-A[i]==0) or (A[i+1]-A[i]==1) or (A[i]-A[i-1]==0) or (A[i]-A[i-1]==1)) where i is the row index, so basically sum B rows for A-s that have the same value +/- 1, but not sum t...