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thank you! yes I wanted to extract point.pred which is average prediction value! preperiod$response was just y value for preintervention period!

Thank you for the answer. Also, when I use the HMC , the impact turns out to be totally opposite compare to the case when I run the same data...

I don't have authority to the data so I'm not sure I can share the dataset... but I can show the output of probability and impact of with R, VI,...

 This is sample output in R casual impact and your VI and HMC result. It can lead pretty different results when it comes to business.. some test results are...

Thank you for the commend, another my question is that case 1: R -8 (negative impact) 4.72 is positive impact Case2: R : negative impact -9, HMC positive impact 2.26...

I meant the alpha that affect CI value. 0.05, 0.2 . I noticed that it is set to 0.05