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It would be interesting to see an update on these stats to see how actual to date compares with the prediction
Spoiler
Process:
- Filter out pre-2017 data so it is not included in the forecast model
- Create date field (not sure if this is needed)
- Calculate running total of posts
- ARIMA model on F3 (keep defaults)
- TS forecast on model results
- Union of pre-2017, Running Total, and predicted data
- Combine post data into single field
- Calculate running total
- Filter out data where running total <1m
- Select first record
- Recreate date
- Clean-up
- Filter out pre-2017 data so it is not included in the forecast model
- Create date field (not sure if this is needed)
- Calculate running total of posts
- ARIMA model on F3 (keep defaults)
- TS forecast on model results
- Union of pre-2017, Running Total, and predicted data
- Combine post data into single field
- Calculate running total
- Filter out data where running total <1m
- Select first record
- Recreate date
- Clean-up
Spoiler
At first I did a running sum before the time series model, and that gave me an answer several years later than found here.
My Effort
Spoiler
Why didn't I know about the running total tool before now?
I get that it is over 1m on 1st July 2023, so the millionth post is in June 2023
I get that it is over 1m on 1st July 2023, so the millionth post is in June 2023
