Meaning no disrespect to LBR, she somewhat *******ized Taylor's work to some degree. George Douglass (that's right 2 S's) Taylor was primarily a floor GRAIN trader. No computers or charts involved. Just staying IN the moment with paper, pencil, and arithmetic.
The only stock mentioned in his one and only book was US Steel (USX) which he apparently traded over and over since their were specific examples dating back to 1933 (the book was written in 1950).
The crux of his method is measuring the swings. The high from day 1 to the low of day 2 he designated DCL. The low from day 1 to the high day 2 as RLY. Grapically, this makes an "X"
Futhermore, any Day 2 high that exceeded day 1's high was quantitfied and labeled BH. Any day 2 low that was below day 1's low was designated BU
Additionally the trader observes whether the high or low was made FIRST each day.
In the context of being long only, the intent is to buy near the low of Day 1 and sell near the high of day 2. Day 3, was considered the short day. A buy day is LMF, a short day is HMF, and the sell day can be EITHER (what LBR refers to as a zig zag day)
Putting these actions in a matrix:
BH HMF..............................................Short
BH LMF..............................................Hold ALL day
BU HMF...............................................AVOID
BU LMF............................................... BUY
Obviously "they" don't ring a bell telling you if today is LMF or HMF, that's where trading intution, and skill play their role.
With respect to measuring swings, simply put, you cannot have a large RLY day without a small DCL.. A small DCL implies a prior day close somewhat NEAR the prior day high.
The preceding is valid but Taylor's concept of a 3 day cycle Buy/Sell/Sell Short may have been more reliable in 1950 than today (due to program trading, instantaneous info, and multiple market makers).
And, ............in the US, unless you have 475 tax status, trading in the same stock over and over (occasionally taking a loss albeit small loss) would run into a wash sale obstacle.
Taylor's book is highly recommended. It paid for itself immediately once understood, but is NOT an easy book to read.