Classes

Namespace Telerik.Windows.Controls.ChartView

Classes

AdaptiveMovingAverageKaufmanIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Exponential Moving Average financial indicator. Its values are defined as the average of the exponentially weighted values of the last points.

AngleRangeAnimation Custom RadAnimation for animating the AngleRange property of PieSeries.

AreaSeries Represents a chart series that are visualize like an area figure in the cartesian space.

AverageTrueRangeIndicator Represents the AverageTrueRange financial indicator.

Axis Represents an axis within a RadCartesianChart instance.

AxisPanAndZoomExtensions Holds attached properties that allow for enabling and controlling the zoom and pan on a CartesianAxis instance.

BarIndicatorBase Represents a financial indicator, whose value depends on the values of DataPoints in financial series.

BarSeries Represents a chart series that plot their points using rectangular shapes, named "Bars". The series support default visuals - System.Windows.Controls.Border instances.

BarSeries3D Represents a 3D chart series that plots its points using bars.

BitmapRenderOptions Contains options for controlling the rendering behavior of ChartSeries when using Light.

BollingerBandsIndicator Represents the Bollinger Bands financial indicator.

BoxPlotSeries Represents a chart series that plot their points using box plot shapes. The series support default visuals - BoxPlotShape instances.

BoxPlotShape Represents the box plot visual.

BubbleSeries Represents a chart series that plot their points using bubbles.

Candlestick Represents the financial Candlestick symbol.

CandlestickSeries Represents a chart series that plot their points using financial "Candlestick" shapes.

CartesianAxis Represents an axis used to plot points within a RadCartesianChart instance.

CartesianChart3DGrid Represents a decoration in a cartesian 3D chart that adds grid lines and strip lines to the planes (sides) of the plot area.

CartesianChartAnnotation This is the base class for all chart annotations in a RadCartesianChart.

CartesianChartGrid Represents a decoration over a RadCartesianChart plot area. Adds major and minor lines, connected to each Major and Minor tick of each axis.

CartesianCustomAnnotation Allows you to place a custom object at a specific place in your RadCartesianChart.

CartesianCustomLineAnnotation Represents a line annotation. The locations of the two points that determine the line are calculated base on the HorizontalFrom, HorizontalTo, VerticalFrom and VerticalTo properties.

CartesianGridLineAnnotation Allows you to place a straight line at a specific place in your RadCartesianChart.

CartesianMarkedZoneAnnotation Represents a marked zone annotation. The location of the rectangle that determine the marked zone is calculated base on the HorizontalFrom, HorizontalTo, VerticalFrom and VerticalTo properties.

CartesianPlotBandAnnotation Allows you highlight the area between two values drawn by the Axis in the RadCartesianChart.

CartesianSeries Represents ChartSeries that may be visualized by a RadCartesianChart instance.

CartesianSeries3D Base class for all series of a RadCartesianChart3D instance.

CartesianStrokedAnnotation Represents an annotation which shape may be stroked (outlined).

CategoricalAxis Defines an axis that treats distinct points as "Categories" rather than "Values".

CategoricalAxis3D Represents a categorical 3D axis within a RadCartesianChart3D instance.

CategoricalRadialAxis Represents a CategoricalRadialAxis that plots categorical data.

CategoricalSeries Base class for all ChartSeries that may contain CategoricalDataPoint.

CategoricalSeriesBase Base class for all categorical series.

CategoricalSeriesDescriptor Represents a concrete ChartSeriesDescriptor that may be used to create all the categorical chart series variations.

CategoricalSeriesDescriptorBase Represents the base class for descriptors that defines categorical data series.

CategoricalStrokedSeries Represents a series which shape may be stroked (outlined).

Chart3DBehavior This is the base class for all 3D chart behaviors.

Chart3DBehaviorCollection This collection contains the behaviors for the RadCartesianChart3D.

Chart3DCameraBehavior A behavior that manipulates the camera and lights of a 3D chart in accordance to user interaction with mouse or touch.

Chart3DPaletteConverter Represents a converter that may convert string value to a System.Windows.Media.Media3D.MaterialCollection instance that will be used as a chart palette.

Chart3DPalettes Contains all the predefined palettes for RadCartesianChart3D.

Chart3DTooltipBehavior A behavior that shows a tooltip containing information about the data point under the mouse.

ChartAggregateFunction Allows aggregate functions to use enumerable expression from DataPointBinding.

ChartAnimationBase Base class for chart animations applicable to series or point visuals.

ChartAnnotation This is the base class for all chart annotations.

ChartAnnotationCreatedEventArgs Encapsulates the data associated with the AnnotationCreated event.

ChartAnnotationDescriptor Represents a definition of a ChartAnnotation instance. Used together with a ChartAnnotationsProvider instance to provide dynamic chart annotation generation, depending on the data specified.

ChartAnnotationDescriptorCollection A typed observable collection of ChartAnnotationDescriptor instances that can be used to add descriptors in xaml.

ChartAnnotationDescriptorSelector Represents a class that allows for context-based ChartAnnotationDescriptor selection within a ChartAnnotationsProvider instance.

ChartAnnotationLabelDefinition Describes the appearance of the labels within a ChartAnnotation.

ChartAnnotationLabelLocation Defines the supported locations of the annotation's label.

ChartAnnotationsProvider Represents a logical object that may be used to create chart annotations automatically.

ChartAverageFunction Represents a function that returns the arithmetic mean of a set of arguments.

ChartAxis3D Represents a 3D axis within a RadCartesianChart3D instance.

ChartBehavior This is the base class for all chart behaviors.

ChartBehaviorCollection This collection contains the behaviors for RadChart.

ChartCountFunction Represents a function that returns the sum from a set of items.

ChartCrosshairBehavior A crosshair presented by two lines and labels that are positioned in accordance to the pointer position.

ChartCrosshairPositionChangedEventArgs Encapsulates the data associated with a ChartCrosshairBehavior.PositionChanged event.

ChartDataContext An object of this type is used as a data context for chart's behaviors. For example the tool tip behavior can use a chart data context to populate its tool tip template with data.

ChartDragMode Defines how a RadChartBase instance will handle a mouse drag gesture.

ChartDropFadeAnimation Custom chart animation which combines MoveAnimation and FadeAnimation . It is designed primarily for stacked area series and stacked bar series.

ChartElementPresenter Base class for all PresenterBase instances that visualize a logical chart element.

ChartFadeAnimation Chart FadeAnimation which wraps FadeAnimation class.

ChartHistogramDataOrientation Gets or sets the orientation of the data in the ChartHistogramSource.

ChartHoverMode An enumeration that defines what visual effects to be applied.

ChartKeyCombination A key combination used by the chart's behaviors.

ChartLegendSettings Base class for the legend items settings of the RadChartBase.

ChartMaxFunction Represents a function that returns the greatest item from a set of items.

ChartMinFunction Represents a function that returns the least item from a set of items.

ChartMouseWheelMode Defines how a RadChartBase instance will handle mouse wheel.

ChartMoveAnimation Chart MoveAnimation which wraps MoveAnimation class.

ChartPalette Defines the palette semantic for a RadChartBase instance. The palette contains GlobalEntries, which are PaletteEntry objects, not related to any particular series and the SeriesEntries collection, which may be used to define a palette for a series family - e.g. Area.

ChartPaletteConverter Represents a converter that may convert string value to a ChartPalette instance.

ChartPalettes Contains all the predefined palettes for RadChartBase. A predefined palette may not be further modified once loaded.

ChartPanAndZoomBehavior Represents a chart behavior that manipulates the Zoom and PanOffset properties of the associated RadChartBase instance.

ChartPanOffsetChangedEventArgs Provides data for the PanOffsetChanged event.

ChartPanZoomMode Defines how a RadChartBase instance will handle a zoom or a pan gesture.

ChartRenderOptions Contains options for controlling the rendering behavior of ChartSeries.

ChartRevealAnimation Chart Reveal Animation which wraps RevealAnimation class.

ChartScaleAnimation Chart ScaleAnimation which wraps ScaleAnimation class.

ChartSelectionBehavior Represents a behavior that changes the IsSelected state of data points and series depending on user input.

ChartSelectionChangedEventArgs Provides data for the SelectionChanged event.

ChartSeries Base class for all series of data points, plotted on a RadChartBase instance.

ChartSeries3DCreatedEventArgs Encapsulates the data associated with the SeriesCreated event.

ChartSeriesCreatedEventArgs Encapsulates the data associated with the SeriesCreated event.

ChartSeriesDescriptor Represents an abstract definition of a ChartSeries instance. Used together with a ChartSeriesProvider instance to provide dynamic chart series generation, depending on the data specified. The descriptors form a neat hierarchy based on the type of data visualized - e.g. Categorical, Scatter, Financial, etc. This is the base class which encapsulates all the common functionality for all concrete descriptors.

ChartSeriesDescriptor3D Represents an abstract definition of a CartesianSeries3D instance. Used together with a ChartSeriesProvider3D instance to provide dynamic chart series generation, depending on the data specified. The descriptors form a neat hierarchy based on the type of data visualized. This is the base class which encapsulates all the common functionality for all concrete descriptors.

ChartSeriesDescriptor3DCollection Represents a typed observable collection of ChartSeriesDescriptor3D instances.

ChartSeriesDescriptorCollection Represents a typed observable collection of ChartSeriesDescriptor instances.

ChartSeriesDescriptorSelector Represents a class that allows for context-based ChartSeriesDescriptor selection within a ChartSeriesProvider instance.

ChartSeriesDescriptorSelector3D Represents a class that allows for context-based ChartSeriesDescriptor3D selection within a ChartSeriesProvider3D instance.

ChartSeriesLabelConnectorsSettings Represents a class that is used for setting up series label connectors.

ChartSeriesLabelDefinition Describes the appearance of the labels within a ChartSeries. A chart series can have multiple definitions, allowing for multiple labels per data point.

ChartSeriesLabelPositionInfo Represents an object that holds information about a label.

ChartSeriesLabelStrategy Allows for pluggable customization of the appearance and layout of data point labels within a ChartSeries instance.

ChartSeriesProvider Represents a logical object that may be used to feed a RadChartBase instance with data, leaving the series creation to the chart itself.

ChartSeriesProvider3D Represents a logical object that may be used to feed a RadCartesianChart3D instance with data, leaving the series creation to the chart itself.

ChartSmartLabelsStrategy Represents a specific strategy for arranging labels within the chart, so that they do not overlap with each other.

ChartSmartLabelsStrategyBase Base class for strategies for arranging labels.

ChartSumFunction Represents a function that returns the sum from a set of items.

ChartTooltipBehavior Defines the tooltip behavior for RadChart.

ChartTrackBallBehavior Represents a behavior that adds two lines in RadChartBase's render surface. The two lines intersect at the center of the closest data point found.

ChartViewExtensions Extensions properties for ChartView.

ChartZoomChangedEventArgs Provides data for the ZoomChanged event.

CommodityChannelIndexIndicator Represents the CommodityChannelIndicator.

D3D10Image An System.Windows.Media.ImageSource that displays a user-created Direct3D10 surface.

DataPointBinding Encapsulates the base functionality for establishing a DataPoint binding.

DataPointInfo This class contains the closest data point to a tap location as well as the point's corresponding series object.

DataPointLegendSettings Settings class for the legend items of the PieSeries.

DataPointSamplingInfo Represents an info class that is used to store the data needed to generate a DataPoint in sampling scenario.

DateTimeCategoricalAxis Represents an Axis that recognizes DateTime values and organizes all the plotted points in chronologically sorted categories.

DateTimeContinuousAxis Represents an Axis which plots points along the actual timeline.

DefaultVisualsRenderMode Indicates how to render default visuals.

Direct2DRenderOptions Contains options for controlling the rendering behavior of ChartSeries.

DoughnutSeries Represents a chart series that visualize data points using arcs that form a doughnut.

DrawingVisualContainer Represents a control that can be used to present a collection of System.Windows.Media.Visuals.

DynamicHelper Encapsulates helper methods to generate Dynamic methods using System.Reflection.Emit.

ErrorBarSeries Represents a chart series that plot their points using error bar shapes. The series support default visuals - ErrorBarShape instances.

ErrorBarShape Represents the error bar visual.

ExponentialMovingAverageIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Exponential Moving Average financial indicator. Its values are defined as the average of the exponentially weighted values of the last points.

FunnelChartHoverMode An enumeration that defines what visual effects to be applied.

FunnelSeries Represents a chart series that visualize data points using trapezoid segments that form a funnel form.

GenericDataPointBinding<TElement, TResult> Represents a DataPointBinding that uses a generic delegate to retrieve the value to be applied for the generated data points.

Geometry3DSelector A selector class that provides a way to select Geometry3D instances based on custom logic.

GetPropertyValueDelegate Retrieves the value of a property of an object instance. Used to generate dynamic methods to bypass reflection.

GridLineRenderMode Defines how grid lines are displayed.

GridLineVisibility Defines the visibility of the major and minor lines within a CartesianChartGrid.

HighLowCloseIndicatorBase Base class for financial indicators that are calculated upon the High and Low values.

HighLowClosePeriodIndicatorBase Base class for financial indicators that are calculated upon the High, Low and Close values and define a period.

HighLowIndicatorBase Base class for financial indicators that are calculated upon the High and Low values.

IndicatorBase Represents a financial indicator, whose value depends on the values of DataPoints in financial series.

InvertedThicknessConverter Represents the converter that converts ScrollMode values to Visibility enumeration value.

KeepExtremesFunction Represents a function which keeps the extremes in the underlying data.

LabelStrategyOptions Defines what custom label implementation will be provided by a ChartSeriesLabelStrategy instance.

LinearAxis Represents a NumericalAxis which step is linear.

LinearAxis3D Represents a numeric linear 3D axis within a RadCartesianChart3D instance.

LineAxis Represents a linear axis.

LineIndicatorBase Represents a financial indicator, whose value depends on the values of DataPoints in financial series.

LineSeries Visualizes a collection of data points using a System.Windows.Shapes.Line shape.

LineSeries3D Represents a 3D chart series that plots its points using a line.

LogarithmicAxis Represents an axis that uses the Logarithm function to calculate the values of the plotted points.

MacdhIndicator This class represents the MovingAverageConvergenceDivergence financial indicator.

MacdIndicator This class represents the MovingAverageConvergenceDivergence financial indicator.

MaterialSelector A selector class that provides a way to select materials based on custom logic.

MemberFirstFunction Represents a function that returns the first item from a set of items.

MemberLastFunction Represents a function that returns the last item from a set of items.

ModifiedExponentialMovingAverageIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Modified Exponential Moving Average financial indicator. Its values are defined as the average of the exponentially weighted values of the last points.

ModifiedMovingAverageIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Modified Moving Average financial indicator.

MomentumIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Momentum oscillator.

MoveAnimationType The type of ChartMoveAnimation. It determines from which side of the chart plot the elements' animation starts.

MovingAverageIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Moving Average financial indicator. Its values are defined as the average value of the last points.

NumericalAxis Base class for all axes that use numbers to plot associated points.

NumericRadialAxis Represents a RadialAxis that plots numerical data.

OhlcSeries Represents a chart series that plot their points using financial "Bar" shapes.

OhlcSeriesBase A base class for chart series that plot financial indicators using High, Low, Open, Close values.

OhlcSeriesDescriptor Represents a concrete ChartSeriesDescriptor that may be used to create financial series - CandlestickSeries and OhlcSeries.

OhlcShape Represents the financial Candlestick symbol.

OhlcStick Represents the financial OhlcStick symbol.

OscillatorIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Moving Average financial indicator. Its values are defined as the average value of the last points.

PaletteEntry Defines an entry in a ChartPalette instance.

PaletteEntryCollection Represents a collection of PaletteEntry objects that target particular ChartSeries instance.

PanZoomBar This class represents a customized version of RadSlider that provides built-in support for pan and zoom actions.

PanZoomBarCommands All commands that the PanZoomBar exposes.

PieChartAngleRangeAnimation Chart MoveAnimation which wraps AngleRangeAnimation class.

PieChartHoverMode An enumeration that defines what visual effects to be applied.

PieChartLabelsDisplayMode Defines label display modes for the pie chart.

PieChartRadiusFactorAnimation Chart MoveAnimation which wraps RadiusFactorAnimation class.

PieChartSmartLabelsStrategy A specific strategy for arranging labels in a pie chart.

PieSeries Represents a chart series that visualize data points using arcs that form a pie.

PointSeries Represents a chart series that plot their points using ellipses.

PointSeries3D Represents a 3D chart series that plots its points using spheres.

PointTemplateSeries Base class for all ChartSeries that may visualize their data points through Data templates.

PolarAreaSeries Represents PolarLineSeries that may optionally fill the area, enclosed by all points.

PolarAxis Represents the Polar (Radius) axis within a RadPolarChart instance.

PolarAxisGridLineAnnotation Allows you to place am ellipse at a specific place in your RadCartesianChart. This annotation uses the PolarAxis.

PolarAxisPlotBandAnnotation Allows you highlight the area between two values drawn by the PolarAxis in the RadPolarChart.

PolarChartAnnotation This is the base class for all chart annotations in a RadPolarChart.

PolarChartGrid Represents a decoration layer over a RadPolarChart. Adds visual representation of Polar and Radial lines and stripes.

PolarCustomAnnotation Allows you to place a custom object at a specific place in your RadPolarChart.

PolarGridLineVisibility Defines the availability of the grid lines within a PolarChartGrid.

PolarLineSeries Represents PolarPointSeries which connect each PolarDataPoint with a straight line segment.

PolarPointSeries Represents CartesianSeries which may visualize PolarDataPoint objects in RadPolarChart.

PolarSeries Base class for all ChartSeries that may visualize their data points in a circle.

PolarSeriesDescriptor Represents a concrete ChartSeriesDescriptor that may be used to create all the polar chart series variations.

PolarSeriesDescriptorBase Represents the base class for descriptors that define polar series.

PolarStrokedAnnotation Represents an annotation which shape may be stroked (outlined).

PresenterBase Base class for all System.Windows.Controls.Control instances that represent charting engine logical models.

PresenterCollection<T> Represents a strongly typed collection of ChartElementPresenter instances.

PropertyNameDataPointBinding Represents a DataPointBinding that uses reflection to look-up the values for the generated data points.

RadarAreaSeries Represents RadarLineSeries that may optionally fill the area, enclosed by all points.

RadarLineSeries Represents RadarPointSeries which connect each CategoricalDataPoint with a straight line segment.

RadarPointSeries Represents CartesianSeries which may visualize CategoricalDataPoint objects in RadPolarChart.

RadarSeriesDescriptor Represents a concrete ChartSeriesDescriptor that may be used to create all the radar chart series variations.

RadChartBase Base class for all different charts. Different chart controls are categorized mainly by the coordinate system used to plot their points.

RadialAxis Represents an elliptical axis.

RadialAxisGridLineAnnotation Allows you to place a straight line at a specific place in your RadCartesianChart. This annotation uses the RadialAxis.

RadialAxisPlotBandAnnotation Allows you highlight the area between two values drawn by the RadialAxis in the RadPolarChart.

RadiusFactorAnimation Custom RadAnimation for animating the RadiusFactor property of the PieSeries.

RangeBarSeries Represents a chart range bar series.

RangeSeries Represents a chart range area series.

RangeSeriesBase A base class for chart range series.

RangeSplineSeries Represents a range spline area series.

RateOfChangeIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Momentum oscillator.

RaviIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Range Action Verification Index financial indicator.

ReadOnlyChartSeriesCollection Represents a read-only collection of chart series.

ReadOnlyDataPointCollection Represents a read-only collection of data points.

RelativeMomentumIndexIndicator Represents the Relative Momentum Index financial indicator.

RelativeStrengthIndexIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the RelativeStrengthIndex financial indicator.

SamplingTimeUnit An enumeration representing the time unit to group by when performing sampling on chart data.

ScatterAreaSeries Represents a chart series which visualize ScatterDataPoint instances by an area shape.

ScatterBubbleSeries Represents a scatter bubble series.

ScatterLineSeries Represents a chart series, which can visualize ScatterDataPoint instances by connecting them with straight line segments.

ScatterPointSeries Represents a chart series which can visualize ScatterDataPoint instances.

ScatterRangeBarSeries Represents a chart scatter range bar series.

ScatterSeries The base class for the scatter series.

ScatterSeriesDescriptor Represents a concrete ChartSeriesDescriptor that may be used to create all the scatter chart series variations.

ScatterSplineAreaSeries Represents a chart series, which can visualize ScatterDataPoint instances by connecting them with smooth curves.

ScatterSplineSeries Visualizes a collection of ScatterDataPoint using a smooth Line shape.

SeriesLegendSettings Settings class for the legend items of the RadChartBase.

SeriesPaletteMode Defines the possible ways of a ChartPalette instance to apply the palette of its owning chart.

SeriesRenderMode Defines how ChartSeries will be rendered.

ShortLongPeriodIndicatorBase Base class for financial indicators, which use ShortPeriod and LongPeriod properties to define their values.

SkiaRenderOptions Contains options for controlling the rendering behavior of ChartSeries.

SplineAreaSeries Represents series which define an area with smooth curves among points.

SplineSeries Visualizes a collection of data points using a smooth System.Windows.Shapes.Line shape.

StepAreaSeries Represents a step area series.

StepLineSeries Represents a step line series.

StochasticFastIndicator Represents the Stochastic Fast financial indicator.

StochasticSlowIndicator Base class for financial indicators that are calculated upon the High, Low and Close values and define a period.

StringToDataPointBindingConverter Converts strings to PropertyNameDataPointBinding objects.

SurfacePointInfo An object that contains information about a data point in a surface series.

SurfaceSeries3D Represents a 3D chart series that plots its points using a surface.

SurfaceSeries3DColorizationMode Determines the appearance of the 3D surface. This may include specific positions, triangle indexes, texture coordinates, and material.

SurfaceSeries3DColorizer Base class for all colorizers for SurfaceSeries3D. Inheritors can determine the appearance of the surface.

SurfaceSeries3DColorizerContext An object that contains information about the data points of a surface series. This object is used during the color selection phase.

SurfaceSeries3DDataPointColorizer A SurfaceSeries3D colorizer that allows for each data point to provide an individual color.

SurfaceSeries3DValueGradientColorizer A SurfaceSeries3D colorizer that uses gradient stops and their offsets to determine the appearance of the surface.

ThumbVisibilityConverter Represents the converter that converts ScrollMode values to Visibility enumeration value.

TrackBallInfoControl Represents the control that displays the track information, provided by a ChartTrackBallBehavior.

TrackBallInfoEventArgs Encapsulates the data associated with a ChartTrackBallBehavior.TrackInfoUpdated event.

TrackBallPositionChangingEventArgs Encapsulates the data associated with the PositionChanging event.

TrackBallSnapMode Defines how a ChartTrackBallBehavior or a ChartTooltipBehavior instance should snap to the closest to a physical location data points.

TrixIndicator This class represents the TRIX financial indicator.

TrueRangeIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the True Range oscillator.

UltimateOscillatorIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Momentum oscillator.

ValueIndicatorBase Represents a base class for financial indicators whose value depends on one input value (Open, High, Low, Close).

ValuePeriodIndicatorBase Represents a base class for financial indicators whose value depends on one input value (Open, High, Low, Close) and Period.

WeightedMovingAverageIndicator Visualizes a collection of DataPoints, using a System.Windows.Shapes.Line shape. This class represents the Weighted Moving Average financial indicator.

XamlGeometryType Indicates what System.Windows.Media.Geometry to create for continuous series.

XamlRenderOptions Contains options for controlling the rendering behavior of ChartSeries when using Full.

XyzSeries3D Represents a 3D chart series which points have a single x-y-z position.

XyzSeries3DDescriptor Represents a concrete XyzSeries3DDescriptor that may be used to create all the XYZ chart series variations.