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Bull Bear Volume Plotter

Bull Bear Volume Plotter afl indicates that who is going to win the battle. This is just an indication and do not make any trading decision based on this afl alone.  You can use this afl as an additional confirmation for your strategy. This is one of the most powerful afl for intraday traders but this can also be used for swing trading as well. For buying decision, make sure you have adequate volue support and volumes are abve the green line.
Bull Bear Volume Plotter
Bull Bear Volume Plotter

//www.aflcode.com

/* basic variable defs 
 ud: up-Day (Close up from Open)
 dd: down-Day (Close down from Open)
 uc: up-Close (Close up from previous Close)
 dc: down-Close: (Close down from previous Close)
*/
C1 = Ref(C, -1);
uc = C > C1; dc = C <= C1;
ud = C > O; dd = C <= O;

/*
Volume Day types: 
 green: up-day and up-close
 yellow: up-day but down-close
 red: down-day and down-close
 blue: down-day but up-close
 white: close equals open, close equals previous close

(currently unused vtypes are for future enhancements)
*/
green = 1; blue = 2; yellow = 3; red = 4; white = 5;
VType = IIf(ud,    
   IIf(uc, green, yellow),
   IIf(dd, 
   IIf(dc, red, blue), white));

/* green volume: up-day and up-close*/
gv = IIf(VType == green, V, 0); 
/* yellow volume: up-day but down-close */
yv = IIf(VType == yellow, V, 0); 
/* red volume: down-day and down-close */
rv = IIf(VType == red, V, 0); 
/* blue volume: down-day but up-close */
bv = IIf(VType == blue, V, 0); 

/* split up volume of up-close days from down-close days - (for the purposes of this volume display indicator, up-days that closed down from the previous close are considered bearish volume days, and conversely, down-days that nevertheless closed up from the previous close are considered bullish volume days - my testing indicates this is more accurate than using ordinary up-days and down-days) */
uv = gv + bv; uv1 = Ref(uv, -1); /* up volume */
dv = rv + yv; dv1 = Ref(dv, -1); /* down volume */

/* create moving average period parameters */
VolPer = Param("Adjust Vol. MA per.", 34, 1, 255, 1);
ConvPer = Param("Adjust Conv. MA per.", 9, 1, 255, 1);

/* create triple exponential moving avearges of separate up and down volume moving averages */
MAuv = TEMA(uv, VolPer ); mauv1 = Ref(mauv, -1);
MAdv = TEMA(dv, VolPer ); madv1 = Ref(madv, -1);
MAtv = TEMA(V, VolPer );//total volume

/* Switch for Horizontal lines indicating current level of positive and negative volume for ease in comparing to past highs/lows - toggle via parmameter window */
OscillatorOnly = Param("Show Oscillator Only", 0, 0, 1, 1);
CompareBullVolume = Param("Show Bull Level", 1, 0, 1, 1);
if(CompareBullvolume AND !OscillatorOnly){
Plot(SelectedValue(MAuv), "", colorGreen, styleLine);
}

CompareBearVolume = Param("Show Bear Level", 1, 0, 1, 1);
if(CompareBearVolume AND !OscillatorOnly){
Plot(SelectedValue(MAdv), "", colorRed, styleLine);
}

/* Volume Segment Switches - toggle via parameter window */
bullvolume = Param("Show Bull Volume", 1, 0, 1, 1);
bearvolume = Param("Show Bear Volume", 1, 0, 1, 1);
totalvolume = Param("Show Total Volume", 1, 0, 1, 1);

/* plot volume lines and histograms if toggled on: */
bearToFront = Param("Show Bear Vol in Front", 0, 0, 1, 1);
if(bearToFront AND !OscillatorOnly){
Plot(MAdv, "", colorRed, styleHistogram|styleNoLabel);
}
if(bullvolume AND !OscillatorOnly){
Plot(MAuv, "Average Bull Volume", colorGreen, styleHistogram|styleNoLabel);
}
if(bearvolume AND !OscillatorOnly){
Plot(MAdv, "Average Bear Volume", colorRed, styleHistogram|styleNoLabel);
}
if(totalVolume AND !OscillatorOnly){
Plot(MAtv, "Total Volume", colorWhite, styleHistogram|styleNoLabel);
Plot(MAtv, "", colorWhite, styleLine);
}
if(bullvolume AND !OscillatorOnly){
Plot(MAuv, "", colorGreen, styleLine);
}
if(bearvolume AND !OscillatorOnly){
Plot(MAdv, "", colorRed, styleLine);
}

/* better visibility of zero line: */
Plot(0, "", colorBlue, 1);

/* Rise/Fall Convergence variables:  */
Converge = (TEMA(MAuv - MAdv, ConvPer));
Converge1 = Ref(Converge, -1);
ConvergeUp = Converge > Converge1;
ConvergeOver = Converge > 0;
rising = ConvergeUp AND ConvergeOver;
falling = !ConvergeUp AND ConvergeOver;

/* Rise/Fall Convergence Oscillator Switch  - toggle via parameter window - (provides a better view of resulting combination of battling bull/bear volume forces) */
convergenceOscillator = Param("Show Oscillator", 0, 0, 1, 1);
if(convergenceOscillator OR OscillatorOnly){
Plot(Converge, "Bull/Bear Volume Convergence/Divergence", colorViolet, 1|styleLeftAxisScale|styleNoLabel|styleThick);
Plot(0,"", colorYellow, 1|styleLeftAxisScale|styleNoLabel);
}

/********************************************************
 Convergence Rise/Fall Shadows: 

 (provides a more easily visible display of rising and falling  bull/bear volume convergence) - toggle via parameter window 

-posiitive Volume exceeding negative Volume: Light shadow
-negative volume exceeding positive volume: dark shadow
-if you use standard gray background - best shadows are:
-my greys: 14 = (216, 216, 216); 15 = (168, 168, 168));
-best substitute? using AB color constants?
-light: colorpalegreen; dark: colorRose;? 
-(depends on your color scheme - customize to your tastes)
**********************************************************/

/* uncomment if you use my custom color greys: */
riseFallColor = IIf(rising, 14,15); //my custom shadow greys

/* comment out if you use my custom color gray shadows: */
/* riseFallColor = IIf(rising, colorPaleGreen,colorRose); */

/* Rise/Fall Convergence Plot Switch - toggle via parameter window */
riseFallShadows = Param("Show RiseFallShadows", 0, 0, 1, 1);
if(riseFallShadows){
Plot(IIf(rising OR falling, 1, 0), "", riseFallColor, styleHistogram|styleArea|styleOwnScale|styleNoLabel);
}
GraphXSpace = 0.5;
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