change candle stick colors

[jh109052]

I have a candle stick chart that is using the default colors - red and green. When a given condition occurs I want to change the color of the previous bar to yellow.

I have read through many of the previous posts and tried some of the examples in my code. The best I have been able to do is change the color of the previous bar to yellow, but then all my following bars are white...How can I make the change to the previous bar without disrupting the default values for the following bars ?

Thanks in advance -
Jennifer

[eSignal_JasonK]

Hello Jennifer,

In order to better answer your questions, I need to see your code. Please post your formula or some example code that you’re using.

[jh109052]

Okay, here's something real simple....If the open of the current bar is greater than the open of the previous bar change the color of the previous bar to yellow, otherwise the default candlestick colors ( red and green ) stay....Or at least that's what I want it to do...

function preMain() {
setPriceStudy(true);
setStudyTitle("Candlestick Test");
setColorPriceBars(true);
}

function main() {
if ( getBarState() == BARSTATE_NEWBAR ) {
if ( open() < open(-1)) {
debugPrintln ("Okay, do something");
setBar(Bar.FgColor, -1, Color.yellow)
}
}
}


Instead what happens is that all the candlesticks change to white...If I remove the formula the candlesticks go back to normal.
Thanks -
Jennifer

[eSignal_JasonK]

Hello Jennifer,

The setBar() function cannot change the color of the price bars, only the color of the data series that you're returning to the chart. You need to add setDefaultPriceBarColor(Color.somecolor); to preMain() and then use setPriceBarColor() to set the color of the current bar. You won't be able to change the price bar color of previous bars, only the current bar.

function preMain() {
    setPriceStudy(true);
    setStudyTitle("Candlestick Test");
    setColorPriceBars(true);
    setDefaultPriceBarColor(Color.green);
}

var vColor = Color.green;

function main() {
    
    if ( getBarState() == BARSTATE_NEWBAR ) {
        vColor = Color.green;
        if ( open() < open(-1)) {
            //debugPrintln ("Okay, do something");
            //setBar(Bar.FgColor, -1, Color.yellow)
            vColor = Color.yellow;
        }
    }
    
    setPriceBarColor(vColor);
    
    return;
} 

[jh109052]

Thanks, Jason. That answers my question, not the way I would have liked, but it answers my question.