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R package for power calculations and visualization for pre-trends tests

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Dear Dr. Roth, I am reading your paper to understand why the targetpower in pretrends function is set to be 0.5. I wonder why it is not 0.7 or 0.79...

Dear Dr. Roth, I am currently using your package to compute the unconditional and conditional biases after passing a pretest with different data. I understand that the unconditional bias is...