IndicatorHelper

ApplyParameters

public static void ApplyParameters(IIndicator indicator, IEnumerable<KeyValuePair<string, object>> parameters)

IndicatorHelper.ApplyParameters(indicator, parameters)

Applies to , keyed by property name and matched case-insensitively. A part of a composite is reached by naming the path to it - K.Length, Macd.LongMa.Length. A key the indicator does not have, or a value it refuses, leaves its own default in place.

indicator

Indicator.

parameters

Parameters.

Clone

public static IIndicator Clone(IIndicator indicator)

result = IndicatorHelper.Clone(indicator)

Create a copy of the indicator.

indicator

Indicator.

Returns: Copy.

CreateEmptyValue

public static IIndicatorValue CreateEmptyValue(IIndicator indicator, DateTime time)

result = IndicatorHelper.CreateEmptyValue(indicator, time)

Create empty IIndicatorValue.

indicator

IIndicator

time

Time

Returns: Empty IIndicatorValue.

CreateIndicator

public static IIndicator CreateIndicator(IndicatorType type)

result = IndicatorHelper.CreateIndicator(type)

Create indicator.

type

IndicatorType

Returns: IIndicator

ExcludeObsolete

public static IEnumerable<IndicatorType> ExcludeObsolete(IEnumerable<IndicatorType> types)

result = IndicatorHelper.ExcludeObsolete(types)

Exclude obsolete indicators.

types

All indicator types.

Returns: Filtered collection.

GetCurrentValue

public static decimal GetCurrentValue(IIndicator indicator)

result = IndicatorHelper.GetCurrentValue(indicator)

To get the current value of the indicator.

indicator

Indicator.

Returns: The current value.

GetCurrentValue``1

public static T GetCurrentValue<T>(IIndicator indicator)

result = IndicatorHelper.GetCurrentValue(indicator)

To get the current value of the indicator.

indicator

Indicator.

Returns: The current value.

GetFirstValue

public static decimal GetFirstValue(IIndicator indicator)

result = IndicatorHelper.GetFirstValue(indicator)

To get the first value of the indicator.

indicator

Indicator.

Returns: The current value.

GetNullableCurrentValue

public static decimal? GetNullableCurrentValue(IIndicator indicator)

result = IndicatorHelper.GetNullableCurrentValue(indicator)

To get the current value of the indicator.

indicator

Indicator.

Returns: The current value.

GetNullableFirstValue

public static decimal? GetNullableFirstValue(IIndicator indicator)

result = IndicatorHelper.GetNullableFirstValue(indicator)

To get the first value of the indicator.

indicator

Indicator.

Returns: The current value.

GetNullableValue

public static decimal? GetNullableValue(IIndicator indicator, int index)

result = IndicatorHelper.GetNullableValue(indicator, index)

To get the indicator value by the index (0 - last value).

indicator

Indicator.

index

The value index.

Returns: Indicator value.

GetOutputs

public static IReadOnlyList<ValueTuple<string, IIndicator>> GetOutputs(IIndicator indicator)

result = IndicatorHelper.GetOutputs(indicator)

The series produces: one entry for a plain indicator, one per innermost part for a composite.

indicator

Indicator.

Returns: Series name paired with the part whose value it carries, in a stable order.

GetOutputValues

public static ValueTuple<decimal?[], int?> GetOutputValues(IIndicatorValue value, IReadOnlyList<IIndicator> parts)

result = IndicatorHelper.GetOutputValues(value, parts)

Reads one number per series out of .

value

What IIndicatorValue) returned. May be .

parts

The parts from IIndicator), in the same order.

Returns: One entry per part, where that series has not formed yet, and the bars-back offset when a sparse indicator reports its value later than the candle it belongs to.

GetParameters

public static IEnumerable<PropertyInfo> GetParameters(Type indicatorType)

result = IndicatorHelper.GetParameters(indicatorType)

The properties of a caller may set: what the indicator declares itself, as opposed to the identity and drawing hints it inherits.

indicatorType

Indicator type.

Returns: Settable parameter properties.

GetValue

public static decimal GetValue(IIndicator indicator, int index)

result = IndicatorHelper.GetValue(indicator, index)

To get the indicator value by the index (0 - last value).

indicator

Indicator.

index

The value index.

Returns: Indicator value.

GetValueType

public static Type GetValueType(Type indicatorType, bool isInput)

result = IndicatorHelper.GetValueType(indicatorType, isInput)

Get value type for specified indicator.

indicatorType

Indicator type.

isInput

Is input.

Returns: Value type.

GetValue``1

public static T GetValue<T>(IIndicator indicator, int index)

result = IndicatorHelper.GetValue(indicator, index)

To get the indicator value by the index (0 - last value).

indicator

Indicator.

index

The value index.

Returns: Indicator value.

IsNonDecimalOutputValue

public static bool IsNonDecimalOutputValue(Type indicator)

result = IndicatorHelper.IsNonDecimalOutputValue(indicator)

Determines whether the indicator is a non-decimal output value.

indicator

Indicator type.

Returns: Check result.

NameInnerParts

private static Dictionary<IIndicator, string> NameInnerParts(IComplexIndicator complex)

result = IndicatorHelper.NameInnerParts(complex)

Names the inner parts after the properties exposing them - UpBand, SignalMa, Dx. Their own Name is localized display text, which would make the series keys change with the language the process is running in.

Preload

public static void Preload(IIndicator indicator, IEnumerable<ValueTuple<DateTime, object[]>> items)

IndicatorHelper.Preload(indicator, items)

Bulk preload using primitive tuples. Implementations may override; default throws NotSupportedException.

indicator

IIndicator

items

Sequence of (time, values) where values correspond to ToValues output.

Process

public static IIndicatorValue Process(IIndicator indicator, object inputValue, DateTime time, bool isFinal)

result = IndicatorHelper.Process(indicator, inputValue, time, isFinal)

To renew the indicator with new value.

indicator

Indicator.

inputValue

Input value.

time

Time

isFinal

IsFinal

Returns: IIndicatorValue.

Process

public static IIndicatorValue Process(IIndicator indicator, decimal value, DateTime time, bool isFinal)

result = IndicatorHelper.Process(indicator, value, time, isFinal)

To renew the indicator with numeric value.

indicator

Indicator.

value

Numeric value.

time

Time

isFinal

Is the value final (the indicator finally forms its value and will not be changed in this point of time anymore). Default is .

Returns: The new value of the indicator.

Process

public static IIndicatorValue Process(IIndicator indicator, ICandleMessage candle)

result = IndicatorHelper.Process(indicator, candle)

To renew the indicator with candle closing price ClosePrice.

indicator

Indicator.

candle

Candle.

Returns: The new value of the indicator.

Process

public static IIndicatorValue Process(IIndicator indicator, IIndicatorValue input, decimal value)

result = IndicatorHelper.Process(indicator, input, value)

To renew the indicator with numeric value.

indicator

Indicator.

input

IIndicatorValue

value

Numeric value.

Returns: The new value of the indicator.

Process``1

public static IIndicatorValue Process<TValue>(IIndicator indicator, ValueTuple<TValue, TValue> value, DateTime time, bool isFinal)

result = IndicatorHelper.Process(indicator, value, time, isFinal)

To renew the indicator with numeric pair.

indicator

Indicator.

value

The pair of values.

time

Time

isFinal

If the pair final (the indicator finally forms its value and will not be changed in this point of time anymore). Default is .

Returns: The new value of the indicator.

SetValue

public static IIndicatorValue SetValue(IIndicatorValue input, IIndicator indicator, decimal value)

result = IndicatorHelper.SetValue(input, indicator, value)

To replace the indicator input value by new one (for example it is received from another indicator).

input

IIndicatorValue

indicator

Indicator.

value

Value.

Returns: New object, containing input value.

ToCandle

public static ICandleMessage ToCandle(IIndicatorValue value)

result = IndicatorHelper.ToCandle(value)

Convert IIndicatorValue to ICandleMessage.

value

IIndicatorValue

Returns: ICandleMessage

ToDecimal

public static decimal ToDecimal(IIndicatorValue value, Level1Fields? source)

result = IndicatorHelper.ToDecimal(value, source)

Convert IIndicatorValue to Decimal.

value

IIndicatorValue

source

Field specified value source.

Returns: Decimal

ToNullableDecimal

public static decimal? ToNullableDecimal(IIndicatorValue value, Level1Fields? source)

result = IndicatorHelper.ToNullableDecimal(value, source)

Convert IIndicatorValue to Decimal or if the value is empty..

value

IIndicatorValue

source

Field specified value source.

Returns: Decimal or if the value is empty.

TryCreateIndicator

public static IIndicator TryCreateIndicator(IndicatorType type)

result = IndicatorHelper.TryCreateIndicator(type)

Create indicator.

type

IndicatorType

Returns: IIndicator

TryGetById

public static IndicatorType TryGetById(IIndicatorProvider provider, string id)

result = IndicatorHelper.TryGetById(provider, id)

Try find IndicatorType by identifier.

provider

IIndicatorProvider

id

Identifier.

Returns: IndicatorType or .

TryGetByType

public static IndicatorType TryGetByType(IIndicatorProvider provider, Type type)

result = IndicatorHelper.TryGetByType(provider, type)

Try find IndicatorType by type.

provider

IIndicatorProvider

type

Indicator

Returns: IndicatorType or .