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cr0
2011 Aug 22
1
Counting Elements Conditionally
R -
I have 3 variables with data below. Variable "Rev" is a vector that changes
from 1 to 2, 2 to 3, etc.... Variable "FF" is a binary variable with 1's
and 0's. Variable "bin" is a different binary variable with 1's and 0's.
I want to calculate the number of elements:
1. Starting with the first element where Rev switches (i.e. 1 to 2)
2. The