How to plot arrows below/above candlesticks on a chart
Updated on 2012-02-11 03:08:10
In order to add arrows on a chart, you have to update the chart's formula.
- Right click on a chart then select "Edit Formula"
- "PlotArrow" is the function we must use to plot arrows
Time-Series: Plots an arrow above/below a candlestick when the value of the time series is different from zero
Description: Text to display above/below arrows
TopBottom: A constant that specify whether to plot the arrows below or above candlesticks
Color: The color used to draw the different arrows
cross1 = cross(sma(10), sma(30));
PlotArrow(cross1, "Last Cross: ".barssince(cross1), AboveHigh, colorRed);
The above example plots an arrow on the bar where the 10-bar simple moving average (SMA) crosses above the 30-bar SMA.
Above each arrow, we display the number of bars since the last crossover. This is calculated using the "barssince" function and the "cross1" variable one bar ago (cross1).
If you want to create arrows with different colors, you can call the "PlotArrow " function several times and use a different color each time.
Plots a green arrow when the stock is trading at a 75-bar high
Plots a red arrow when the stock is trading at a 75-bar low
PlotArrow(close == hhv(close, 75), "", AboveHigh, colorGreen);
PlotArrow(close == llv(close, 75), "", BelowLow, colorRed);