QdbDoubleColumnFirst Method (IEnumerableQdbTimeInterval)

Gets the first points (ie the one with the oldest timestamp) of each interval

Namespace: Quasardb.TimeSeries
Assembly: Quasardb (in Quasardb.dll) Version: 3.15.0.0 (3.15.0.0)

Syntax

public IEnumerable<QdbDoublePoint> First(
	IEnumerable<QdbTimeInterval> intervals
)

Public Function First ( 
	intervals As IEnumerable(Of QdbTimeInterval)
) As IEnumerable(Of QdbDoublePoint)

intervals: Type: System.Collections.GenericIEnumerableQdbTimeInterval
The time intervals to scan

Type: IEnumerableQdbDoublePoint
The first point in each interval (null when there is no point in an interval)

QdbDoubleColumnAddLanguageSpecificTextSet("LST71CC5E5A_0?cpp=::|nu=.");First Method (IEnumerableAddLanguageSpecificTextSet("LST71CC5E5A_1?cs=&lt;|vb=(Of |cpp=&lt;|fs=&lt;'|nu=(");QdbTimeIntervalAddLanguageSpecificTextSet("LST71CC5E5A_2?cs=&gt;|vb=)|cpp=&gt;|fs=&gt;|nu=)");)