how to add indicator code into expertadvisor code ??

[[Deleted]]

as i mentioned above, i wish to make ea with stochastic coding.

the problem is how to add indicator code into ea ??

[Simon Gniadkowski]

albert_lim83:

the problem is how to add indicator code into ea ??

You can, with certain limitations, but using iCustom is a whole lot easier.

But if you really want to: Transferring an Indicator Code into an Expert Advisor Code. Indicator Structure - MQL4 Articles

[Tjipke de Vries]

For Stochastic it is not needed iCustom

double iStochastic( string symbol, int timeframe, int %Kperiod, int %Dperiod, int slowing, int method, int price_field, int mode, int shift) Calculates the Stochastic oscillator and returns its value. Parameters: symbol - Symbol the data of which should be used to calculate indicator. NULL means the current symbol. timeframe - Timeframe. It can be any of Timeframe enumeration values. 0 means the current chart timeframe. %Kperiod - %K line period. %Dperiod - %D line period. slowing - Slowing value. method - MA method. It can be any ofMoving Average method enumeration value. price_field - Price field parameter. Can be one of this values: 0 - Low/High or 1 - Close/Close. mode - Indicator line index. It can be any of the Indicators line identifiers enumeration value. shift - Index of the value taken from the indicator buffer (shift relative to the current bar the given amount of periods ago). Sample: if(iStochastic(NULL,0,5,3,3,MODE_SMA,0,MODE_MAIN,0)>iStochastic(NULL,0,5,3,3,MODE_SMA,0,MODE_SIGNAL,0)) return(0);

A lot of coding help is here to find Alphabetic Index of MQL4 Functions https://www.mql5.com/en/forum/122679

[[Deleted]]

how about adding rvi indicator into ea ?

also using the same code as the way adding stochastic ?

[Simon Gniadkowski]

Read the documentation

[Tjipke de Vries]

albert_lim83:

how about adding rvi indicator into ea ?

also using the same code as the way adding stochastic ?

iCustom() or iRVI()

[William Roeder]

albert_lim83:

how about adding rvi indicator into ea ?

also using the same code as the way adding stochastic ?

1. 

   ---

2. Detailed explanation of iCustom - MQL4 forum
   

[[Deleted]]

i trying to add RVI indicator into escape EA, but failure...

it show

expression on global scope not allowed

function definition unexpected

unbalanced parentheses

how to fix these error ??

[[Deleted]]

here the code i did this morning.

anyone can help me to fix it ??

//+------------------------------------------------------------------+
int init()
{
//---- indicator buffers mapping
SetIndexBuffer(0,Buffer);
SetIndexBuffer(1,SignalBuffer);
//---- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexStyle(1,DRAW_LINE);
//---- drawing settings
SetIndexDrawBegin(0,RVIPeriod+3);
SetIndexDrawBegin(1,RVIPeriod+7);
//---- name for DataWindow and indicator subwindow label
IndicatorShortName("RVI("+RVIPeriod+")");
SetIndexLabel(0,"RVI");
SetIndexLabel(1,"RVIS");
//---- initialization done
return(0);
}
{
double bid =MarketInfo(Symbol(),MODE_BID); // Request for the value of Bid
double ask =MarketInfo(Symbol(),MODE_ASK); // Request for the value of Ask
double point =MarketInfo(Symbol(),MODE_POINT);//Request for Point
return; // Exit start()
if(AccountFreeMargin()<100)
Print("We have no money. Free Margin = ", AccountFreeMargin());
return(0);
}

int start()
{
{
int i,j,nLimit,nCountedBars;
double dValueUp,dValueDown,dNum,dDeNum;
//----
if(Bars<=RVIPeriod+8) return(0);
//----
nCountedBars=IndicatorCounted();
//---- check for possible errors
if(nCountedBars<0) return(-1);
//---- last counted bar will be recounted
nLimit=Bars-RVIPeriod-4;
if(nCountedBars>RVIPeriod+4)
nLimit=Bars-nCountedBars;
//---- RVI counted in the 1-st buffer
for(i=0; i<=nLimit; i++)
{
dNum=0.0;
dDeNum=0.0;
for(j=i; j<i+RVIPeriod; j++)

{
dValueUp=((Close[j]-Open[j])+2*(Close[j+1]-Open[j+1])+2*(Close[j+2]-Open[j+2])+(Close[j+3]-Open[j+3]))/6;
dValueDown=((High[j]-Low[j])+2*(High[j+1]-Low[j+1])+2*(High[j+2]-Low[j+2])+(High[j+3]-Low[j+3]))/6;
dNum+=dValueUp;
dDeNum+=dValueDown;
}
if(dDeNum!=0.0)
Buffer[i]=dNum/dDeNum;
else
Buffer[i]=dNum;
}
//---- signal line counted in the 2-nd buffer
nLimit=Bars-RVIPeriod-7;
if(nCountedBars>RVIPeriod+8)
nLimit=Bars-nCountedBars+1;
for(i=0; i<=nLimit; i++)
SignalBuffer[i]=(Buffer[i]+2*Buffer[i+1]+2*Buffer[i+2]+Buffer[i+3])/6;
//----
return(0);
}
{
OrderSend(Symbol,LotSize,Ask,StopLoss,TakeProfit,0,0);
if (Close<i)
OpenBuy();
return(0);

OrderSend(Symbol,LotSize,Bid,StopLoss,TakeProfit,0,0);
if (Close>i)
OpenSell();
return(0);
}


double GetSizeLot() { return(LotSize); }
double GetTakeProfitBuy() { return(Ask+TakeProfit*Point); }
double GetTakeProfitSell() { return(Bid-TakeProfit*Point); }
double GetStopLossBuy() { return(Bid-StopLoss*Point); }
double GetStopLossSell() { return(Ask+StopLoss*Point); }
string GetCommentForOrder() { return();}

return(0); }

[Simon Gniadkowski]

Before posting please read some of the other threads . . . then you would have seen numerous requests like this one:

Please use this to post code . . . it makes it easier to read.

[Simon Gniadkowski]

albert_lim83:

here the code i did this morning.

anyone can help me to fix it ??

You can't use Indicator code in an EA . . . read the thread I posted a link to. You have to have equal numbers of { and } also equal numbers of ( and ) . . . . haven't I already said this once ? https://www.mql5.com/en/forum/139447 I guess you don't bother to learn from other posts ?