...just saying it is impossible, in which I agree as I never see any trader or institution are able to make the future prediction...
Personally I know many retail traders and about a dozen institutional traders...I haven't met anyone that tries to
predict trend or chop via the way you've open this thread. In contrast, they just try to identify the current (in real-time) market/price action environment they're trading and then try to be prepare for different possible scenarios that may show up (good or bad).
Reality is that those that approach their trading in trying to predict something for tomorrow...they are not trying to predict if tomorrow will be a trend day or chop day...they are trying to predict
something else (read further below). Heck, most days there's trend AND chop.
Seriously, you can look at higher time frames and find a tight trading range chop but then lower your time frame and see trends that last about an hour (up and down in the same day). Just the same, you can see chop on lower time frame but lower your time frame more to like tick charts and see trends (up and down in the same day).
Therefore, without any real discussions by you, myself or others about definitions and charts...not really going to be helpful although as pointed out earlier their has been links pointed elsewhere that contains more helpful discussions because they do contain definitions, chart examples and so on.
Getting back to institutional traders. They will say why are you concerned about "trend or chop" for tomorrow's price action (the prediction factor). In contrast, they're more concerned about
price direction and could care less about how it gets there via a trend or chop. Thus, if it chops and gets to the price they're looking for...its a happy day. Just the same, if it trends and gets to the price they're looking for its still a happy day. Just the same, if it trends and chops in the same day (most trading days are such) and gets to the price they're looking for its still a happy day.
Simply, maybe that's why you don't see folks doing such...trying to predict if tomorrow or whatever is going to be a chop day or trend day is not needed. Wouldn't they be more concern with price direction ?
Trend or chop
with price direction only matters for current (real-time) market conditions that you're trading so that you can determine which trade approach to use.