Quote from kiev:
I'll ask some questions about resistance and support:
1) If a resistance or support has been passed in the past, should it be considered next time when price near it?
2) When can we say a resistance or support has been broken?
Thanks
1. All trading is done in a window. The four sides are determined in the same manner all the time.
a. The right one third of your display is devoted to lines you draw which extend into this space. This is the future "container" of market variables and where the Break Out (BO) will occur.
b. You are currently unable to know what the left side of your window really is. So your not being able to do this tasks means that you cannot determine the other two aspextcs of your window.
c. What you are calling resistance does not matter at all.
d. what you are calling support does not matter at all.
2. "When can we say" is a reference to one and only one specific event in the market's operation.
This is the criteria which determines the answer to 1. b. above.
There is only one criteria and it is the only criteria that exists.
A measure is taken of the kind of turn that is occurring during the event of a turn. This turn is a turn from one dominance to the other dominance.
The best practical way to do this is to use a look up table.
For the moment lets assume you can do this process. You have solved the 1. b. part of your question.
For 1. c. substitute the word resistance with the word "upper" and apply upper to the independent market variable.
For 1. d. substitute the word support with the word "lower" and apply lower to the independent market variable.
Someday, you will discover that during trends, the context of a trend changes as various trend events occur to form the trend. Perhaps you have realized that trends have two ends: beginning and ending. Between these is the middle where the "context" keeps changing.
1. c. is called the beginning and 1. d. is called the end for the short trend case. (The opposite is true for long trends.) Trends are either completed or NOT completed AND in either case they still have the two ends. Thus the look up table is arranged to take these matters into account.
For you to make any progress with the present dilemma your mind gave you, you will have to change how you think about markets. Lets say you have encountered trend containers other than support and resistance. Lets say you can associate a definition with these alternative names. If so, then you are on the way towards getting out of your dilemma.
Here are these alternative names: Right trendLine (RTL) and Left TrendLine (LTL).
The UPPER line is ALWAYS the RTL and the lower line is ALWAYS the LTL.
The picture of the market is always in these four sides (going clockwise: RTL, future, LTL, beginning of the trend. Anything outside of this framing is NOT to be CONSIDERED.
Obviously, the end of a prior trend is the same as the beginning of the new trend.
S and R are static and not usefule. The RTL is most important and the LTL comes from the RTL.
To see your dilemma stated in other terms, search the posts of trader.fighter.