I try to code in MT4 but the indicator doesn´t work correctly.
#property indicator_chart_window
#property indicator_buffers 1
#property indicator_plots 1
//--- plot Section
#property indicator_label1 "Section"
#property indicator_type1 DRAW_SECTION
#property indicator_color1 clrRed
#property indicator_style1 STYLE_SOLID
#property indicator_width1 1
//--- input parameter
input int bars=5; // The length of sections in bars
input int N=5; // The number of ticks to change the style of sections
//--- An indicator buffer for the plot
double SectionBuffer[];
//--- An auxiliary variable to calculate ends of sections
int divider;
//--- An array to store colors
color colors[]={clrRed,clrBlue,clrGreen};
//--- An array to store the line styles
ENUM_LINE_STYLE styles[]={STYLE_SOLID,STYLE_DASH,STYLE_DOT,STYLE_DASHDOT,STYLE_DASHDOTDOT};
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
//--- Binding an array and an indicator buffer
SetIndexBuffer(0,SectionBuffer,INDICATOR_DATA);
//--- The 0 (empty) value will mot participate in drawing
PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0);
//--- Check the indicator parameter
if(bars<=0)
{
PrintFormat("Invalid value of parameter bar=%d",bars);
return(INIT_PARAMETERS_INCORRECT);
}
else divider=2*bars;
//---+
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[])
{
static int ticks=0;
//--- Calculate ticks to change the style, color and width of the line
ticks++;
//--- If a critical number of ticks has been accumulated
if(ticks>=N)
//--- The number of the bar from which the calculation of indicator values starts
int start=0;
//--- If the indicator has been calculated before, then set start on the previous bar
if(prev_calculated>0) start=prev_calculated-1;
//--- Here are all the calculations of the indicator values
for(int i=start;i<rates_total;i++)
{
//--- Get a remainder of the division of the bar number by 2*bars
int rest=i%divider;
//--- If the bar number is divisible by 2*bars
if(rest==0)
{
//--- Set the end of the section at the High price of this bar
SectionBuffer[i]=Close[i];
}
//---If the remainder of the division is equal to bars,
else
{
//--- Set the end of the section at the High price of this bar
if(rest==bars) SectionBuffer[i]=Close[i];
//--- If nothing happened, ignore the bar - set 0
else SectionBuffer[i]=0;
}
}
//--- Return the prev_calculated value for the next call of the function
return(rates_total);
}
