TimeSeriesIndex class - dartframe library

TimeSeriesIndex class

Represents a time series index with timestamps and frequency information.

This class provides functionality similar to pandas' DatetimeIndex, allowing for time-based indexing and operations on time series data.

Constructors

TimeSeriesIndex(List<DateTime> _timestamps, {String? frequency, String? name}): Creates a TimeSeriesIndex with the given timestamps and optional frequency.
TimeSeriesIndex.dateRange({required DateTime start, DateTime? end, int? periods, String frequency = 'D', String? name}): Creates a TimeSeriesIndex from a date range.
factory

first → DateTime: The first timestamp in this index
no setter
frequency → String?: The frequency of this index
no setter
hashCode → int: The hash code for this object.
no setteroverride
isEmpty → bool: Whether this index is empty
no setter
isNotEmpty → bool: Whether this index is not empty
no setter
last → DateTime: The last timestamp in this index
no setter
length → int: The number of timestamps in this index
no setter
name → String?: The name of this index
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
timestamps → List<DateTime>: The timestamps in this index
no setter

asFreq(String newFrequency, {String method = 'nearest'}) → TimeSeriesIndex: Converts this TimeSeriesIndex to a different frequency.
contains(DateTime timestamp) → bool: Checks if this index contains the given timestamp
detectFrequency() → String?: Detects the frequency of the time series based on the timestamps.
indexOf(DateTime timestamp) → int: Finds the index of the given timestamp
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
slice(DateTime start, DateTime end) → TimeSeriesIndex: Returns a subset of this index between start and end dates
toString() → String: A string representation of this object.
override