Conditional summation notation
Post date: 2020-08-01 11:00:48
Views: 299
I'm trying to show a summation for observations i to n, starting with i = 1, that is only applied when another variable (treatment) is equal to 0. What's the correct notation for that?

The idea that I'm trying to turn into mathematical notation is "Each control unit in a given stratum has an uncorrected weight equal to (the unit's survey weight divided by the sum of all survey weights of control units in that stratum) multiplied by (the sum of all survey weights of treatment units in that stratum)," if that helps for context. I feel very self-conscious asking this question; please be kind.
Number of Comments
Please click Here to read the full story.
 
Other Top and Latest Questions:
Jeff Bezos' family office backed five AI startups in June
Help me help these deserving people - Web Content creation edition
Ford CEO wants level playing field with Toyota, GM imports as USMCA trade talks reopen
What became of the youngest Agees?
All-ages places to watch the World Cup in downtown Chicago?
Contract Concerns
Movie: The Death of Robin Hood
Book: Purgatorio: Canto 23
Movie: Cruel Fate
Making ghost pepper popsicle how do I calibrate the heat?