I'll try to help you, however my explanations are geared from real-life trading, with JH as basis only, which is not the same as explicit rules: the market does not operate that way, regardless of what ANYONE, including JH, might say or has said.
There are 2 definitive types of lock-in.
The first one, and the more commonly cited is in the price-pane. I've attached the widely available lock-in sheet. It is nothing new.
The price-pane lock-in is all about the 10 cases... As a bar is FORMING, before the bar closes, it MAY go through a morphing process.... for instance, just as example not meant to present an exhaustive representation, a SYM may turn into an FTP. An FTP can turn into an XB, an XB can turn into an OB. FTP can not become a FBP but FTP can become a HITCH. XB can not become a HITCH, but it can become a STITCH or OB. This process of lock-in occurs while the price-bar is forming, before the price-bar is closed.
The other type of definitive lockin is with volume. As you are learning, with volume there is ACTUAL and PRV. Lock-in with actual volume is simple to understand... the very second the actual volume surpasses the previously measurable, whether it's 2 seconds into the bar formation or at the 300th second as the bar is closing, you know what you have volume-wise. In the very least, you know what the volume is not!!
OTOH, PRV is CALCULATED AS THE BAR IS FORMING.. PRV is an INDICATION ONLY! It seems you've grasped how it is calculated. Personally, I use 20 second intervals, 3 calculations per minute. JH used 12 second intervals, or 5 calculations per minute.
Making concrete assumptions about this calculated PRV value during bar formation can EASILY lead to losses. OTOH, PRV can provide INTRABAR heads-up and/or TEMPORARY (intrabar) confirmations.
But always remember... The lines you place, the calculations you make, the annotations you make are merely things on YOUR screen. YOU are the one that gives meaning or value to them... the market is always correct, and does not give one hoot about us, our methods, our calculations, or what's on our screens!!
Thank you very much for your help, always appreciated.
Pepe's script works. Review post #1576 in the JH software thread to get it to work.
Alternatively, the ES 1min chart would also allow one to "use" that as PRV for the ES 5m.
Attached is the script I think you are refering to.
I am at half of the Exact Science thread. It takes me time to read all JH's posts, there are a lot in this journal. By the way, all he develops overwhelms me quite a bit. I notice all this is more than anything SCT oriented, and not RDBMS. I mean, I see many vocabulary of SCT method, but never some things explicitely related to RDBMS terms. It appears at the moment to me as a parallel zone of knowledge that does not fit to what I am searching for.
I have to reorganize a bit my mind by the way.
I am ok with the RDBMS. I know I need OTR chart (I don't understand nor know what is is yet), YM 2min, ES 30min, DOM and T&S chart, in order to be drill a bit more until carving thr turns to the tick and thus, extract the full offer of the market, am I right ?
That's what I understand at the moment.
Recently, a new piece tot hat has been added : PRV. I know how to calculate it and I must add Pepe's script to TV which is not the kind of task I am good at. Anyway, I'll manage to do it with or without help. I hope this will not take me too much time.
As I said, I'm a bit of saturated with the Exact Scienc thread at the moment as I don't manage to see what in this journal, is important for the elevel I am at currently. Therefore, I will not dwell too much on this journal and before going back to it, I will now re-go on Spyder's JH's Futures Journal and the litterature about T&S and DOM charts. I understand what YM2min is, although I'm not sure how there is to use it. Anyway I know what is missing me, at least, before extracting the full offer every day is :
- T&S
- ES 30min
- YM 2min
- OTR charts (on ES5min and YM2min)
- DOM
- PRV
I have cleared up a bit the PRV concept and its calculation. Great, but I don"t know yet concretely how/why/when to use it. I am at the same point with YM2min. I am clear with what 30min ES chart mean, although I don't know either when/how to use it.
Where I am at zero knowledge nor any understanding are OTR, DOM and T&S.
As I find myself blocked with further and deeper comprehension about PRV, YM, ES30min, I think the good thing to do is to go on another field that must be unlocked too and those areas are OTR, DOM and T&S. Once I have made some progress on those three items, I will surely have already unlock some pieces of the PRV, YM and ES 30min, and so will I be for sure able to end the Exact Science thread and find more sense to chat is developped in this thread.
I may add that the flow cycle sheet and the 11 sheets that follow with the story of nodes and links etc seems hard to me, I don't get what's the link with RDBMS. I feel like if those items have a bridge with RDBMS but I do not see it. I need to improve somewhere else before going through this again, thus why I choose for next coming days, to pause my work on it and to enter into the last items that has been presented to me as requirements for drilling from coarse to finer view of the HRE : DOM, OTR and T&S.
Any comment or interaction is welcome, thank you for the support. Effectively @Sprout , it's good for the state/area I am at the moment, to have hard skin. It's been a while since I lived the work so testing.