ChartArrow.CalculateY

method · ChartArrow · cAlgo.API

DesktopCLICloud

Calculates Y-axis value corresponding the specified bar index.

Environment behaviour

CLI — works differently. Created and kept with all its properties, but never drawn: the CLI displays no chart.

Cloud — works differently. Created and kept with all its properties, but never drawn: the cloud displays no chart.

Overloads

Signature	Description
`CalculateY(int barIndex)`	Calculates Y-axis value corresponding the specified bar index.
`CalculateY(DateTime time)`	Calculates Y-axis value corresponding the specified time value.

CalculateY(int barIndex)

Calculates Y-axis value corresponding the specified bar index.

C#Python

double CalculateY(int barIndex)

chartArrow.CalculateY(barIndex: int) -> float

Parameters

Name	C# type	Python type	Description
`barIndex`	`int`	`int`	Index of the bar.

Returns double — System.Double.

Examples

C#Python

var arrow = Chart.DrawArrow("arrow", Bars.OpenTimes.Last(20), Bars.LowPrices.Last(20), Bars.OpenTimes.Last(10), Bars.HighPrices.Last(10), Color.Red);
arrow.ExtendToInfinity = true;
Print("Arrow value at the last bar: {0}", arrow.CalculateY(Bars.Count - 1));

arrow = api.Chart.DrawArrow("arrow", api.Bars.OpenTimes.Last(20), api.Bars.LowPrices.Last(20), api.Bars.OpenTimes.Last(10), api.Bars.HighPrices.Last(10), Color.Red)
arrow.ExtendToInfinity = True
api.Print(f"Arrow value at the last bar: {arrow.CalculateY(api.Bars.Count - 1)}")

CalculateY(DateTime time)

Calculates Y-axis value corresponding the specified time value.

C#Python

double CalculateY(DateTime time)

chartArrow.CalculateY(time: DateTime) -> float

Parameters

Name	C# type	Python type	Description
`time`	`DateTime`	`DateTime`	The time.

Returns double — System.Double.

Examples

C#Python

var arrow = Chart.DrawArrow("arrow", Bars.OpenTimes.Last(20), Bars.LowPrices.Last(20), Bars.OpenTimes.Last(10), Bars.HighPrices.Last(10), Color.Red);
arrow.ExtendToInfinity = true;
Print("Arrow value at {0}: {1}", Bars.OpenTimes.LastValue, arrow.CalculateY(Bars.OpenTimes.LastValue));

arrow = api.Chart.DrawArrow("arrow", api.Bars.OpenTimes.Last(20), api.Bars.LowPrices.Last(20), api.Bars.OpenTimes.Last(10), api.Bars.HighPrices.Last(10), Color.Red)
arrow.ExtendToInfinity = True
api.Print(f"Arrow value at {api.Bars.OpenTimes.LastValue}: {arrow.CalculateY(api.Bars.OpenTimes.LastValue)}")