Conditional summation notation
Post date: 2020-08-01 11:00:48
Views: 280
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:
Can you get a loan for a wedding? The do's, don'ts and alternatives
Inside India newsletter: Anthropic curbs ignite AI debate in India — efforts 'too slow, way too small'
A Man on the Inside: Group Project
Trump and Iran's President Pezeshkian sign memorandum aimed to end war
You had one job, bank.
Executive Dysfunction Tips
People with high sleep needs?
CEOs of Anthropic and Google DeepMind call for U.S.-led AI coalition in meeting at G7
Jeffrey Gundlach says Fed's Warsh is not going to be the 'easy money' chairman many hoped for
Defense contractors would be barred from buying back their stock in bill approved by Senate panel