steve woods' cumulative vol. percentage indicator.afl

一个更精度的平滑涵数, 可用于股票交易系统.用于Amibroker 平台

//------------------------------------------------------------------------------
//
//  Formula Name:    Steve Woods' Cumulative Vol. Percentage Indicator
//  Author/Uploader: Eric Tangen 
//  E-mail:          
//  Date/Time Added: 2002-07-12 08:47:28
//  Origin:          Steve Woods "The Precision Profit Float Indicator"
//  Keywords:        Float Steve Woods Cumulative Volume Percentage
//  Level:           medium
//  Flags:           indicator
//  Formula URL:     http://www.amibroker.com/library/formula.php?id=202
//  Details URL:     http://www.amibroker.com/library/detail.php?id=202
//
//------------------------------------------------------------------------------
//
//  This is the third of Steve Woods' indicators - his Cumulative Volume
//  'Percentage' indicator. It is a sawtooth histogram of volume summation
//  normalized to a fraction of one float. When the fraction becomes one float,
//  the summation is reset - hence the sawtooth appearance.
//
//  The theory is that significant advances/declines occur during integer
//  multiples of one float and bases are also integer multiples of one float.
//
//  The bar for the beginning of the summation is set at the beginning of the
//  AFL code.
//
//------------------------------------------------------------------------------

// File NAME: ...Afl/Indicators/FloatHistogram.afl
// Name in Indicator Builder: FloatHistogram // 

// Plots the forward looking volume histogram; have to nail the beginning point manually below - 
StartBar = LastValue(ValueWhen(DateNum()==1020207,Cum(1),1) );// use the calendar version - it is easier
// or do it the hard way by counting the bar number:
// StartBar =  LastValue(Cum(1)) - 120 ; //he '- x' is the number of bars from the rh edge of the chart
// Change the '- x'  to set the beginning bar for the indicator
// Use the cum function to establish the first bar         

Title="(AmiSheet #) "+Name()+"  "+FullName()+"  Group: "+SectorID(1)+ " // 9_FloatHistogram //  "  ;

BarCounter = Cum(1);

AFL_float =  GetExtraData("SharesFloat"); // Use QuotesPlus data feed for easy database access to the shares in 
                                                                //  float number
                                                                //  Another method would be to set up foreign tickers to contain float data
                                                                //  Or one could enter the number in the AFL code for each stock examined

float_scaled = 1000000*(AFL_float)+.001; // the .001 handles possible div by 0 issues if AFL_float = 0

VolumefromBarCounter=(IIf(BarCounter >= StartBar ,V,-1E10 ));
PerCentFloatfromBarCounter = frac(Cum(VolumefromBarCounter)/Float_Scaled);
OneFloat = IIf(PerCentFloatfromBarCounter >= 0.95,1,-1E10 ); // early detection of float turnover

//Plot( BarCounter, " ",9,2); // GraphColor = 9; //9=maize
//Plot( VolumefromBarCounter, " ",9,2); // GraphColor = 9; //9=maize

Plot(  PerCentFloatfromBarCounter , " ",4,2);// Graph1Color = 4; //4=red //
Plot(OneFloat, " ",6,2);     // GraphColor = 6; //6=blue
Plot((HHV(OneFloat,Cum(1)))+.25," ",1,256); // 256 = no draw: scale axis only
Plot(0," ",1,256); // 256 = no draw: scale axis only

/*
        AFL CHART COLORS Amibroker 4.0
Plot( AFLarray, "ArrayString",0,4);// Graph1Color = 0; //0=Gray Thick Line Chart
Plot( AFLarray, "ArrayString",1,4);// Graph1Color = 1; //1=black
Plot( AFLarray, "ArrayString",2,4);// Graph1Color = 2; //2=white
Plot( AFLarray, "ArrayString",3,4);// Graph1Color = 3; //3=blank (not transparent, use graph type 16 to delete)
Plot( AFLarray, "ArrayString",4,4);// Graph1Color = 4; //4=red 
Plot( AFLarray, "ArrayString",5,4);// Graph1Color = 5; //5=bright green
Plot( AFLarray, "ArrayString",6,4);// Graph1Color = 6; //6=blue
Plot( AFLarray, "ArrayString",7,4);// Graph1Color = 7; //7=yellow
Plot( AFLarray, "ArrayString",8,4);// Graph1Color = 8; //8=bright green
Plot( AFLarray, "ArrayString",9,4);// Graph1Color = 9; //9=maize
Plot( AFLarray, "ArrayString",10,4);// Graph1Color = 10; //10=cyan
Plot( AFLarray, "ArrayString",11,4);// Graph1Color = 11; //11=magenta
Plot( AFLarray, "ArrayString",12,4);// Graph1Color = 12; //12=violet (almost black)
Plot( AFLarray, "ArrayString",13,4);// Graph1Color = 13; //13=peach
Plot( AFLarray, "ArrayString",14,4);// Graph1Color = 14; //14=even lighter cyan
Plot( AFLarray, "ArrayString",15,4);// Graph1Color = 15; //15=brick
Plot( AFLarray, "ArrayString",16,4);// Graph1Color = 16; //16=black
Plot( AFLarray, "ArrayString",17,4);// Graph1Color = 17; //17=brown
Plot( AFLarray, "ArrayString",18,4);// Graph1Color = 18; //18=black
Plot( AFLarray, "ArrayString",19,4);// Graph1Color = 19; //19=forest green
Plot( AFLarray, "ArrayString",20,4);// Graph1Color = 20; //20=black
Plot( AFLarray, "ArrayString",25,4);// Graph1Color = 25; //25=orange
Plot( AFLarray, "ArrayString",26,4);// Graph1Color = 26; //26=olive green
Plot( AFLarray, "ArrayString",27,4);// Graph1Color = 27; //27=medium green
Plot( AFLarray, "ArrayString",28,4);// Graph1Color = 28; //28=blue-green
Plot( AFLarray, "ArrayString",29,4);// Graph1Color = 29; //29=blue
Plot( AFLarray, "ArrayString",30,4);// Graph1Color = 30; //30=blue-gray
Plot( AFLarray, "ArrayString",37,4);// Graph1Color = 37; //37=lighter shade of 30 (blue-gray)

GRAPH TYPES

1 = normal line
2 = histogram
4 = thick line
8 = include dots
16 = no line
32 = semi log
64 = candlestick chart
128 = bar chart
256 = no draw: scale axis only
512 = Gann Staircase
1024 = Gann Swing Dots

// Amibroker AFL code by Eric Tangen

*/