Dynamic Array Population Error

November 20th, 2020, 10:52 AM

I'm trying to run the following code and run into an error shown on the Events Log of :

Quoting

elsystem.UserException: Dynamic array index is out of bounds: index 1 size: 1

I'm not sure what I'm doing wrong but I am new to using arrays.

My code is below.

Essentially I'm trying to have an empty dynamic array named Pvt_ArrayH that is populated by Pivot() function's output of oPivotPriceH which i've made equal to Value 5. I don't have any errors in the TS Development Environment. I'm using this on a @MES daily candles chart.

Code

Vars: oPivotPriceL(0), oPivotBarL(0), oPivotPriceH(0), oPivotBarH(0), Counter(0);

Arrays: Pvt_ArrayH[](0);

//Pivot High (based on C)	
Value4 = Pivot(C, 4, 3, 3, 1, 1, oPivotPriceH, oPivotBarH);
Value5 = oPivotPriceH;
Value6 = oPivotBarH;

Counter = Counter + 1;
Pvt_ArrayH[Counter] = Value5;

Print(Pvt_ArrayH);

ABCTG · November 20th, 2020, 11:50 AM

EatLiftTrade,

welcome to futures.io.

You will need to set the size of your dynamic array before you can store values in it.

The help file within the TDE has a section for arrays and the part about dynamic arrays should be helpful for you.

Regards,

ABCTG

November 20th, 2020, 03:50 PM

I found what you mean ABCTG, I've done the following to adjust for size, see below.

I don't run into any errors; however, i'm not sure why it only prints 1.0. Given that Value5 is oPivotPriceH, I was expecting that the array was storing the price values which should be -1 and the price of the pivot when it occurs.

Thanks

Code

Vars: oPivotPriceL(0), oPivotBarL(0), oPivotPriceH(0), oPivotBarH(0), Counter(0);

Arrays: double Pvt_ArrayH[](0);
Clearprintlog;

//Pivot High (based on C)	
Value4 = Pivot(C, 4, 3, 3, 1, 1, oPivotPriceH, oPivotBarH);
Value5 = oPivotPriceH;
Value6 = oPivotBarH;

Counter = Counter + 1;
Array_setmaxindex(Pvt_ArrayH, Counter);
Pvt_ArrayH[Counter] = Value5;


Print(Pvt_ArrayH);

ABCTG · November 23rd, 2020, 03:36 AM

EatLiftTrade,

you are not printing any index of the array. Something along the lines of "Print(Pvt_ArrayH[Counter])" might be what you have in mind.

Regards,

ABCTG

EatLiftTrade

I found what you mean ABCTG, I've done the following to adjust for size, see below.

I don't run into any errors; however, i'm not sure why it only prints 1.0. Given that Value5 is oPivotPriceH, I was expecting that the array was storing the price values which should be -1 and the price of the pivot when it occurs.

Thanks

Code

Vars: oPivotPriceL(0), oPivotBarL(0), oPivotPriceH(0), oPivotBarH(0), Counter(0);

Arrays: double Pvt_ArrayH[](0);
Clearprintlog;

//Pivot High (based on C)	
Value4 = Pivot(C, 4, 3, 3, 1, 1, oPivotPriceH, oPivotBarH);
Value5 = oPivotPriceH;
Value6 = oPivotBarH;

Counter = Counter + 1;
Array_setmaxindex(Pvt_ArrayH, Counter);
Pvt_ArrayH[Counter] = Value5;


Print(Pvt_ArrayH);

Dynamic Array Population Error

Discussion in TradeStation

Dynamic Array Population Error