安德鲁鱼叉系统

Andrews’ Pitchfork is an instrument consisting of three parallel Trend Lines. This instrument was developed by Dr. Alan Andrews.

3 条平行直线的趋势线，由安德鲁博士最先发现。

The first trend line starts in a selected extreme left point (it is an important peak or trough) and is drawn exactly between two extreme right points. This line is the "handle" of pitchfork. Then, the second and the third trend line issuing from two above-mentioned extreme right points (important peak and trough) is drawn parallel to the first one. These lines are "tines" of the pitchfork.

左边的峰谷或者峰顶发展出的趋势线是叉把，右边的临近峰值发展出叉的两个尖齿。

In our discussion of Andrews Pitchforks, the terms “price pivot,” and “pivot point” will be used quite often. A pivot point is the location of a price reversal. At a pivot point, price bars change direction. When price changes from an upward to a downward direction, a “top pivot” is formed. When price changes from a downward to an upward direction, a “bottom pivot” is formed. The following chart gives examples of pivots.

Multi-Pivot lines

Standard pivot lines (or trend lines) can be drawn by connecting two pivots. However, connecting several pivots creates a multi-pivot line. When drawing a multi-pivot line, it is not necessary to run through the exact high or low of each pivot. It is only necessary to be as close to each pivot as possible. Looking for trend lines that can be drawn through a large number of pivots is important. The more pivots through which the trend line passes, the more accurate the trend line will be in predicting future support and resistance.

一大段英文就一句话：短期的极值点叫做轴心点（附近价格运动受其附近轴心影响），轴心点的连线就是我们常说的趋势线了。

The Andrews Pitchfork

Alan Andrew’s Pitchfork consists of four main lines. The first line is the only line that is not provided by the Andrews Pitchfork indicator tool. This line must be constructed by connecting two pivots that are a recent high and low of a price swing.Once the line has been constructed, move your cursor so that it is touching the line and right click. When you right click the mouse, a list of indicators will be displayed. Move your cursor so that “Andrews Pitchfork” is highlighted and left click. The Andrews Pitchfork will now appear on the screen.

选择两个轴心点（一高价轴心，一低价轴心），拉动鼠标到临近第三个轴心，安德鲁鱼叉就自动由计算机生成了。

The Median Line Within the Andrews Pitchfork

The next line within the Andrews Pitchfork is the most important. This Line is the median line. The median line runs through the center of the first line, which you drew on your chart, and it determines the angle of the Andrews Pitchfork. To properly position Andrews Pitchfork, locate a third pivot that occurs before the price swing. Usually this will be the pivot immediately before the price swing, but it does not have to be. Once you have located the pivot that you will be using, move the tail end of the median line so that it touches the pivot.

三条平行线的中心那条最重要，他平分了两轴心连线的中心，决定了鱼叉的角度。

Three Median Line Trading Principals

After years of use with the pitchfork and median line, Andrews made several observations that are important for traders. These observations can be summed into three basic principals that can help a trader know what to expect when using the median line of the Andrews Pitchfork.

1. When a median line is drawn from the most recent swings, the price will return to the median line approximately 80% of the time.

2. When price returns to the median line, a pivot will usually occur.

3. When price returns to the median line, it will often make several small price swings on and around the top and bottom of the median line before continuing on.

鱼叉使用三原则：

1：鱼叉八成都能捕获到鱼（价格运动回归中心线）

Dr. Andrews suggested that prices make it to the median line (or handle) about 80% of the time while the price trend is in place. This means that while the basic long term price trend remains intact, Dr. Andrews believed that the smaller trends in price would gravitate toward the median line while the larger price trend remained in tact. When that does not occur, it may be evidence that a reversal in the larger price trend may be in progress or provides evidence of a stronger bias at work in market. When price fails to make it to the medial line from either side, it is often an expression of the relative enthusiasm of buyers and sellers and may predict the next major direction of prices. If prices fail to reach the median line while above the median line, it is a bullish and failing to reach the median line from below is bearish.

回归中心线证明长期基本趋势仍然存在，如果没有回归显示反转正在发生或者市场相对原有趋势出现了剧烈的偏离。在回归的过程中受到中心线的支撑和压制反映出买方和买方的交易信心。

2：一旦捕获（价格运动回归中心线）即刻生成新轴心点。

3：一旦捕获（价格运动回归中心线）一定被中心线固定住一段（中心线附近波动一段）

Locating highs and lows

The trick to trading these signals is being able to properly locate a true high or low in the market as opposed to a pause in the market trend. There are 3 different pattern formations you can use to help you determine a true reversal.

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