布林买卖点识别,中轨变色指标源码深度解析
布林带（Bollinger Bands）是一种常用的技术分析工具，由约翰·布林（John Bollinger）发明。布林带由三个线组成：中轨（中间的线）、上轨和下轨。中轨通常是移动平均线，而上轨和下轨则是基于中轨的偏差。
布林带变色通常指的是当价格触及上轨或下轨时，布林带的中轨颜色发生变化，以此作为买卖信号。以下是一个简单的布林带变色指标的源码示例，使用的是Python的`pandas`和`matplotlib`库。
```python
import pandas as pd
import matplotlib.pyplot as plt
import matplotlib.dates as mdates
from matplotlib.lines import Line2D
# 假设df是包含股票数据的DataFrame，其中包含'Close'列
# df = pd.read_csv('stock_data.csv') # 示例：从CSV文件读取数据
# 计算布林带
def calculate_bollinger_bands(df, window=20, num_of_std=2):
df['Middle Band'] = df['Close'].rolling(window=window).mean()
df['Upper Band'] = df['Middle Band'] + (df['Middle Band'].std() num_of_std)
df['Lower Band'] = df['Middle Band'] - (df['Middle Band'].std() num_of_std)
return df
# 绘制布林带
def plot_b
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应各位朋友的，将布林买卖点指标源码分享，并且改编适应博易大师，文华财经，通达信，倚天财经，请朋友们观察规律，提出改进意见，观察不同级别的买卖点，以求共振。
通达信布林买卖点中轨变色指标源码：
MID : MA(CLOSE,26);
UPPER: MID + 2*STD(CLOSE,26);
LOWER: MID - 2*STD(CLOSE,26);
A1:=MID>REF(MID,1) AND REF(MID,1)<REF(MID,2);
A2:=MID<REF(MID,1) AND REF(MID,1)>REF(MID,2);
DRAWTEXT(O>UPPER AND C<UPPER OR A2,H+1,'做空'),COLORGREEN;
DRAWTEXT(O<LOWER AND C>LOWER OR A1,L-1,'做多'),COLORRED;
上翘:IF(MID>REF(MID,1),MID,DRAWNULL),COLORRED,LINETHICK3;
下拐:IF(MID<REF(MID,1),MID,DRAWNULL),COLORGREEN,LINETHICK3;
文华财经布林买卖点中轨变色指标源码：
MID:MA(CLOSE,26);
TMP2:=STD(CLOSE,26);
TOP:MID+2*TMP2;
BOTTOM:MID-2*TMP2;
A1:=MID>REF(MID,1) AND REF(MID,1)<REF(MID,2);
A2:=MID<REF(MID,1) AND REF(MID,1)>REF(MID,2);
DRAWTEXT(O>TOP AND C<TOP OR A2,H+1,'做空'),COLORGREEN;
DRAWTEXT(O<BOTTOM AND C>BOTTOM OR A1,L-1,'做多'),COLORRED;
A:=MID-REF(MID,1);
B:=REFX(A,1);
C1:=IF(MID>=REF(MID,1),1,-1);
DRAWSL(REF(C1,1)=1,MID,B,1,0,COLORRED);
DRAWSL(REF(C1,1)=-1,MID,B,1,0,COLORGREEN);
博易大师布林买卖点中轨变色指标源码：
MID : MA(CLOSE,26);
UPPER: MID + 2*STD(CLOSE,26);
LOWER: MID - 2*STD(CLOSE,26);
PARTLINE(MID>REF(MID,1),MID),COLORRED;
PARTLINE(MID<REF(MID,1),MID),COLORGREEN;
A1:=MID>REF(MID,1) AND REF(MID,1)<REF(MID,2);
A2:=MID<REF(MID,1) AND REF(MID,1)>REF(MID,2);
DRAWTEXT(O>UPPER AND C<UPPER OR A2,H+1,'做空'),COLORGREEN;
DRAWTEXT(O<LOWER AND C>LOWER OR A1,L-1,'做多'),COLORRED;
倚天财经林买卖点中轨变色指标源码:
MID : MA(CLOSE,26);
UPPER: MID + 2*STD(CLOSE,26);
LOWER: MID - 2*STD(CLOSE,26);
PARTLINE(MID>REF(MID,1),MID) COLORRED;
PARTLINE(MID<REF(MID,1),MID) COLORGREEN;
A1:=MID>REF(MID,1) AND REF(MID,1)<REF(MID,2);
A2:=MID<REF(MID,1) AND REF(MID,1)>REF(MID,2);
DRAWTEXT(O>UPPER AND C<UPPER OR A2,H+1,'做空') COLORGREEN;
DRAWTEXT(O<LOWER AND C>LOWER OR A1,L-1,'做多') COLORRED;