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作者：安德鲁
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.
鱼叉的使用目的：识别真正的高低转折点和短时极值点，以便确定趋势的反转。
Method 1: Wait for a second pivot point on your lower or upper
parallel line.
方法一：新轴心点的相对位置。
Method 2: Look for center points within the pitchfork.
方法二：围绕鱼叉中心点是否据有支撑或阻挡的能量。
Method 3: Recognize reversals by analyzing candlestick patterns.
There are 3 common reversal patterns found within candlestick
formations.
方法三：参考轴心点K线组合的反转作用
A Fourth Median Line Trading Principal
If price does not reach the median line, price will move in the
opposite direction more than the previous swing size.
This principal can be used to set a price target after price fails
to reach the Median line. After price fails to reach the median
line, the first price target is either the high or low of the two
pivots selected in constructing the first line of the Andrews
Pitchfork. This holds true because once price fails to reach the
median line, it will move in the opposite direction more than the
previous swing size.
一但鱼儿逃脱会迅速的脱离危险的鱼叉出没地。（逃离附近的轴心点的控制）
Upper and Lower Parallel Lines of the Andrews Pitchfork
The remaining lines, which make up the Andrews Pitchfork, are the
upper and lower parallel lines of the median line. Upper and lower
parallel lines are used in conjunction with signal lines.
Signal Lines
The chart below displays a pitchfork with points labeled A, B, and
C. Point A is the pivot that occurred before the price swing.
Points B and C are where the upper and lower parallel lines extend
from the original line you drew. Connecting points A and B gives
you an upper signal line and connecting points A and C gives you a
lower signal line. These signal lines can give signals to either
buy or sell when used with a few trading rules.
一旦突破了蓝色的信号线，就是转势的明确信号了。
The Andrews Pitchfork with Signal Lines Trading Rules
Buy Rule 1: Buy when price breaks above a downward sloping upper
parallel line. It’s an indication of market strength
Buy Rule 2: Buy on a downward sloping pitchfork and an upper signal
line when price reverses without touching the median line and
breaks the upper signal line.
Sell Rule 1: Sell when price breaks below an upward sloping lower
parallel line. It’s an indication of market weakness
Sell Rule 2: Sell on an upward sloping pitchfork and a lower signal
line when price reverses without touching the median line and
breaks below the lower signal line.
突破单边既是交易触发点。
Mini Andrews Pitchforks
Mini Andrews Pitchforks are drawn the same way as normal Andrews
Pitchforks, except they are drawn with the use of much smaller
pivots. Mini Andrews Pitchforks are applied to charts to search for
a signal from a larger Andrews Pitchfork. The Mini Andrews
Pitchfork will often give a signal before the larger Andrews
Pitchfork. An aggressive trader may use the Mini Andrews Pitchfork
signals alone, but often they are used with a larger Andrews
Pitchfork to find signals before they are given.
The buy and sell rules for the median lines of Mini Andrews
Pitchforks are the same as the buy and sell rules for the median
lines of regular Andrews Pitchforks.
The Mini Andrews Pitchfork will not always be used to give early
indication of buy or sell signals along a current trend. Sometimes
the Mini Andrews Pitchfork will be used to determine which
direction price will move while it makes a sideways formation
within a larger Andrews Pitchfork.
The following chart contains a Mini Pitchfork within a Large
Pitchfork. Here, the use of a Mini Andrews Pitchfork with signal
lines can help determine whether price will rise to the upper
parallel line, or fall back down to the lower parallel line of the
large pitchfork. A downward Mini Andrews Pitchfork is drawn in red.
Price is unable to drop to the mini’s median line and then rises
above the lower mini signal line. This move indicates a mini buy
signal, which can be used to enter the market.
迷你安德鲁鱼叉是在大鱼叉分析中的小鱼叉分析，使用方法和大的一样，就不翻译了。大家先慢慢的品着—
Andrews Pitchfork
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