Hello,
I am trying to create an indicator using previous closing prices, however I ran into some problems. I've tried some troubleshooting, and come across something strange. Using Plot0.Set(Close[1]); in OnBarUpdate will not plot anything, nor will any value >0. I can use negative numbers, which will plot the close of the next bar (as expected), and the current bar will plot, but I can't get any previous prices to plot, nor can I work with Close[1] for calculations. I feel like I'm missing something obvious, but I have no idea what it is. Can anyone help?

Elenchus 

Hello, I am trying to create an indicator using previous closing prices, however I ran into some problems. I've tried some troubleshooting, and come across something strange. Using Plot0.Set(Close[1]); in OnBarUpdate will not plot anything, nor will any value >0. I can use negative numbers, which will plot the close of the next bar (as expected), and the current bar will plot, but I can't get any previous prices to plot, nor can I work with Close[1] for calculations. I feel like I'm missing something obvious, but I have no idea what it is. Can anyone help?

it always helps to check for errors. you probably get an error message in the log, saying "you're accessing an index with a value ...."

in your case, if you want to access the previous bar closing price, you'll need to add something like this:

 

Code

protected override void OnBarUpdate() { if (CurrentBar < 1) return; Plot0.Set(Close[1]);

Silvester17 

it always helps to check for errors. you probably get an error message in the log, saying "you're accessing an index with a value ...." in your case, if you want to access the previous bar closing price, you'll need to add something like this:   Code protected override void OnBarUpdate() { if (CurrentBar < 1) return; Plot0.Set(Close[1]);

Ah, of course, that makes sense. Thank you very much.