Any questions from newcomers on MQL4 and MQL5, help and discussion on algorithms and codes - page 135
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Do you put the prices in all at once, or do you get them and then put them in the calculation?
Do you set the prices at once, or get them and then paste them into calculation?
for(int i=1; i<=period; i++)
{
H1_Close[i]=Close[k];
k--;
}
I take a chunk of timesession equal to the period starting from the last closed bar and flip it over in the array, because 1 is the penultimate bar in timesession and calculation must start from i-th
i.e. my function should return SMMA value of the last closed bar.
The code below encodes a simple idea.
If the last closed order was on SEL
If the last closed order was on the NEL
Open a NEL order
if ( OrderType ()==OP_SELL)
X = OrderProfit( );
if (OrderSelect (Ht-1,SELECT_BY_POS, MODE_HISTORY))
if ( OrderType ()==OP_BUY)
if(X < 0)
OrderSend(Symbol(),OP_SELL,0.1,Bid ,3,Ask+400*Point,Ask-200*Point,"17-10",123 );
QUESTION
What language construct can be used to add two more conditions to this code (circled in red)
If the last closed order is NEL
If the last CEL order closed
If the last closed order has closed on the NEL
If the last closed order has been closed on aSL
Thank you for your help.
I would be very grateful if you could write the code and not just explain what has to be done.
Hello. I am writing a script to delete all pending orders. However, it only deletes one order. I always have two pending orders or one. In either case it only deletes one Buy Stop. To delete Sell Stop you have to run the script again, provided there are no other Buy Stop orders. Please advise where the error is located.
change the direction of the search for(i=total-1;i>=0;i--)
Thank you, now it works. Do I understand correctly that when an order with index 0 is deleted, an order with index 1 is assigned index 0, and at the next iteration i == 1, and no such order appears. Can you tell if this is the case?
There's a customisable fractal feature, well geez, that's awfully heavy. I've left the drawing of objects only to visually show if the fractals are forming correctly - it's not going to happen.
Question: how can we make it easier, because visual testing is stupid:
extern int FrRight=5; // Баров справа
//-----------------------------------------------------------------------------------------------
void OnTick()
{
int nFrUp= GetBarFractal(Symbol(),PERIOD_CURRENT,FrLeft,FrRight,0,MODE_UPPER); // Возвращает номер бара
int nFrDn= GetBarFractal(Symbol(),PERIOD_CURRENT,FrLeft,FrRight,0,MODE_LOWER); // Возвращает номер бара
double FrHigh = High[nFrUp]; // Цена верхнего фрактала
double FrLow = Low [nFrDn]; // Цена нижнего фрактала
SetArrow("FrUp"+"_"+(string)Time[nFrUp], Time[nFrUp], High[nFrUp], clrDeepSkyBlue, 217, 2, ANCHOR_BOTTOM);
SetArrow("FrDn"+"_"+(string)Time[nFrDn], Time[nFrDn], Low[nFrDn], clrDeepPink, 218, 2, ANCHOR_TOP);
// Comment("Price: ",FrHigh,", Num: ",nFrUp,"\nPrice: ",FrLow,", Num: ",nFrDn);
}
//----------------------------------------------------------------------------------------------+
//---------------------- Возвращает номер бара фрактала (настраиваемый) ------------------------+
//----------------------------------------------------------------------------------------------+
int GetBarFractal(string symb,ENUM_TIMEFRAMES tf=0,int nLeft=2,int nRight=2,int numFr=0,int mode=MODE_UPPER) {
int i=0,cn=0,pos=0,r=0,l=0,e=0,equals,bars;
double _high[], _low[];
nLeft=nLeft<=2?2:nLeft;
nRight=nRight<=2?2:nRight;
equals=nLeft+nRight;
bars=Bars(symb,tf)-equals;
ArraySetAsSeries(_high,true);
ArraySetAsSeries(_low,true);
for(pos=nRight+1; pos<bars; pos++) {
r=nRight;
if(mode==MODE_UPPER) {
CopyHigh(symb,tf,0,pos+equals+1,_high);
for(i=1; i<=r; i++) {
if(_high[pos]<=_high[pos-i]) break;
}}
if(mode==MODE_LOWER) {
CopyLow(symb,tf,0,pos+equals+1,_low);
for(i=1; i<=r; i++) {
if(_low[pos]>=_low[pos-i]) break;
}}
//--
if(i==r+1) {
l=nLeft;
e=equals;
for(int j=1; j<=l+equals; j++) {
if(mode==MODE_UPPER) {
if(_high[pos]<_high[pos+j]) break;
if(_high[pos]>_high[pos+j]) l--;
if(_high[pos]==_high[pos+j]) e--;
}
if(mode==MODE_LOWER) {
if(_low[pos]>_low[pos+j]) break;
if(_low[pos]<_low[pos+j]) l--;
if(_low[pos]==_low[pos+j]) e--;
}
if(l==0) {
cn++;
if(cn>numFr) return(pos);
}
//--
if(e<0) break;
}}
}
Print(__FUNCTION__": Фрактал не найден");
return(0);
}
//----------------------------------------------------------------------------------------------+
//------------------- Функция рисования значка на графике, объект OBJ_ARROW --------------------+
//----------------------------------------------------------------------------------------------+
void SetArrow(string nm="", datetime t1=0, double p1=0, color col=clrRed,
int code=252, int width=1, int anchor=0) {
if(ObjectFind(0,nm)==-1) {
ObjectCreate(0,nm,OBJ_ARROW,0,0,0);
ObjectSetInteger(0,nm,OBJPROP_COLOR,col);
ObjectSetInteger(0,nm,OBJPROP_ARROWCODE,code);
ObjectSetInteger(0,nm,OBJPROP_ANCHOR,anchor);
ObjectSetInteger(0,nm,OBJPROP_WIDTH,width);
ObjectSetInteger(0,nm,OBJPROP_SELECTED,false);
ObjectSetInteger(0,nm,OBJPROP_SELECTABLE,true);
ObjectSetInteger(0,nm,OBJPROP_HIDDEN,false);
ObjectSetDouble(0,nm,OBJPROP_PRICE,p1);
ObjectSetInteger(0,nm,OBJPROP_TIME,t1);
}
}
Thanks!
There's a customisable fractal feature, well geez, that's awfully heavy. I've left the drawing of objects only to visually show if the fractals are forming correctly - it's not going to happen.
Question: how can I make it easier, because visual testing is stupid:
Thanks!
Hello. Could you advise a newcomer?
Here's an example:
if(Condition1)
if(Condition2)
{
}
else
{
}
According to the code, Else should refer to if(condition1) and will be executed if condition1 is not met
But in fact it will also be executed if Condition2 is not met.
Hello. Could you advise a newcomer?
Here's an example:
if(Condition1)
if(Condition2)
{
}
else
{
}
According to the code, Else should refer to if(condition1) and will be executed if condition1 is not met
But in fact it will be executed if Condition2 is not satisfied.
Get in the habit of putting curly braces immediately with the condition
if(Condition)
{
}
And according to your question
{
if(Условие2)
{
}
}
else
{
}