getting value of double from previous candle

[oshriur]

Hey I'm just starting to develope in ninjascript, I used to code in pinescript and I try to make some changes to my indicator from pinescript to a ninjascript.

In pinescript I can access the previous candle double value by doing (variable name)[1].
I tried to do the same in pinescript but it is not working.

Error CS0021 Cannot apply indexing with [] to an expression of type 'double' NinjaTrader.Custom C:\Users\woshr\Documents\NinjaTrader 8\bin\Custom\Indicators\CryptoStars.cs 152 Active

is there any way to work around it?

double rsivalue = RSI(14, 3)[0];
double hb = MAX(RSI(14, 3), 90)[0];
double lb = MIN(RSI(14, 3), 90)[0];

double max;
double max_rsi;
double min;
double min_rsi;

max = hb == 0 ? Close[0] : max[1] == 0 ? Close[0] : max[1];

[oshriur]

Solved by creating a variable series<double>

double rsivalue = RSI(14, 3)[0];
double hb = MAX(RSI(14, 3), 90)[0];
double lb = MIN(RSI(14, 3), 90)[0];

Series<double> max;
Series<double> max_rsi;
Series<double> min;
Series<double> min_rsi;

max[0] = hb == 0 ? Close[0] : max[1] == 0 ? Close[0] : max[1];

[NinjaTrader_BrandonH]

Hello oshriur,

Thanks for your notes.

I am happy to hear you resolved this matter by using a Series<double> variable. This would be the correct way to do this to get a previous value from a variable. Regular double variables cannot have indexing applied to it but custom Series<T> objects can.

See this help guide page for more information about custom Series<T> objects: https://ninjatrader.com/support/help...t8/seriest.htm