Accessing previous bar's close

Custom Indicators Custom Drawings
1

How do I access the previous bar’s data? high(), low(), close(). Please, I see many questions regarding this but absolutely no answers.

2

This one is fairly easy:

map(d,index, history) {

        const currentHigh = d.high();
        const currentLow = d.low();
        
        const prevHigh = history.prior().high();
        const prevLow = history.prior().low();

}

Other commands you can find here:

I would suggest you go through tradovates custom indicator intro:

https://tradovate.github.io/custom-indicators/pages/Tutorial/index.html

I wouldn´t call it a tutorial.

Latter day traders youtube playlist helped me too.

3

Thank you. Some of the links will help I’m sure. I must say, so far the developer experience has been nothing less than brutal here :wink:

4

Update:

since index is set to 0 at the start, you need to add an if clause:

map(d,index, history) {

if(index > 0){
        const currentHigh = d.high();
        const currentLow = d.low();
        
        const prevHigh = history.prior().high();
        const prevLow = history.prior().low();

}

}