# Class: Series

## Highcharts. Series

#### new Series(chart, options)

  This is the base series prototype that all other series types inherit from. A new series is initialized either through the series option structure, or after the chart is initialized, through Highcharts.Chart#addSeries.

  The object can be accessed in a number of ways. All series and point event handlers give a reference to the `series` object. The chart object has a series property that is a collection of all the chart's series. The point objects and axis objects also have the same reference.

  Another way to reference the series programmatically is by `id`. Add an id in the series configuration options, and get the series object by Highcharts.Chart#get.

  Configuration options for the series are given in three levels. Options for all series in a chart are given in the plotOptions.series object. Then options for all series of a specific type are given in the plotOptions of that type, for example `plotOptions.line`. Next, options for one single series are given in the series array, or as arguments to `chart.addSeries`.

  The data in the series is stored in various arrays.

  - First, `series.options.data` contains all the original config options for each point whether added by options or methods like `series.addPoint`.

  - The `series.dataTable` refers to an instance of DataTableCore or `DataTable` that contains the data in a tabular format. Individual columns can be read from `series.getColumn()`.

  - Next, `series.data` contains those values converted to points, but in case the series data length exceeds the `cropThreshold`, or if the data is grouped, `series.data` doesn't contain all the points. It only contains the points that have been created on demand.

  - Then there's `series.points` that contains all currently visible point objects. In case of cropping, the cropped-away points are not part of this array. The `series.points` array starts at `series.cropStart` compared to `series.data` and `series.options.data`. If however the series data is grouped, these can't be correlated one to one.

  ##### Parameters:

  Name | Type | Description
  --- | --- | ---
  `chart` | Highcharts.Chart | The chart instance.
  `options` | Highcharts.SeriesOptionsType | object | The series options.

### Members

#### center :Array.<number>

  The series center position, read only. This applies only to circular chart types like pie and sunburst. It is an array of `[centerX, centerY, diameter, innerDiameter]`.

  ##### Type:

  - Array.<number>

#### chart :Highcharts.Chart

  Read only. The chart that the series belongs to.

  ##### Type:

  - Highcharts.Chart

#### color :Highcharts.ColorType|undefined

  Series color as used by the legend and some series types.

  ##### Type:

  - Highcharts.ColorType | undefined

#### data :Array.<Highcharts.Point>

  Read only. An array containing those values converted to points. In case the series data length exceeds the `cropThreshold`, or if the data is grouped, `series.data` doesn't contain all the points. Also, in case a series is hidden, the `data` array may be empty. In case of cropping, the `data` array may contain `undefined` values, instead of points. To access raw values, `series.options.data` will always be up to date. `Series.data` only contains the points that have been created on demand. To modify the data, use Highcharts.Series#setData or Highcharts.Point#update.

  ##### Type:

  - Array.<Highcharts.Point>
  See also:
    - Highcharts.Series.points

#### <readonly> dataMax :number|undefined

  Contains the maximum value of the series' data point. Some series types like `networkgraph` do not support this property as they lack a `y`-value.

  ##### Type:

  - number | undefined

#### <readonly> dataMin :number|undefined

  Contains the minimum value of the series' data point. Some series types like `networkgraph` do not support this property as they lack a `y`-value.

  ##### Type:

  - number | undefined

#### <readonly> index :number

  Contains the series' index in the `Chart.series` array.

  ##### Type:

  - number

#### legendItem :Highcharts.LegendItemObject|undefined

  Legend data for the series.

  ##### Type:

  - Highcharts.LegendItemObject | undefined
  Since:
    - 10.3.0

#### <readonly> linkedParent :Highcharts.Series

  The parent series of the current series, if the current series has a linkedTo setting.

  ##### Type:

  - Highcharts.Series

#### <readonly> linkedSeries :Array.<Highcharts.Series>

  All child series that are linked to the current series through the linkedTo option.

  ##### Type:

  - Array.<Highcharts.Series>

#### name :string

  The series name as given in the options. Defaults to "Series {n}".

  ##### Type:

  - string

#### options :Highcharts.SeriesOptionsType

  Read only. The series' current options. To update, use Highcharts.Series#update.

  ##### Type:

  - Highcharts.SeriesOptionsType

#### points :Array.<Highcharts.Point>

  An array containing all currently visible point objects. In case of cropping, the cropped-away points are not part of this array. The `series.points` array starts at `series.cropStart` compared to `series.data` and `series.options.data`. If however the series data is grouped, these can't be correlated one to one. To modify the data, use Highcharts.Series#setData or Highcharts.Point#update.

  ##### Type:

  - Array.<Highcharts.Point>

#### selected :boolean

  Read only. The series' selected state as set by Highcharts.Series#select.

  ##### Type:

  - boolean

#### type :string

  Read only. The series' type, like "line", "area", "column" etc. The type in the series options anc can be altered using Highcharts.Series#update.

  ##### Type:

  - string

#### userOptions :Highcharts.SeriesOptionsType

  Contains series options by the user without defaults.

  ##### Type:

  - Highcharts.SeriesOptionsType

#### visible :boolean

  Read only. The series' visibility state as set by Highcharts.Series#show, Highcharts.Series#hide, or in the initial configuration.

  ##### Type:

  - boolean

#### xAxis :Highcharts.Axis

  Read only. The unique xAxis object associated with the series.

  ##### Type:

  - Highcharts.Axis

#### yAxis :Highcharts.Axis

  Read only. The unique yAxis object associated with the series.

  ##### Type:

  - Highcharts.Axis

#### <static> types :Highcharts.Dictionary.<typeof_Highcharts.Series>

  Registry of all available series types.

  ##### Type:

  - Highcharts.Dictionary.<typeof_Highcharts.Series>

### Methods

#### addPoint(options [, redraw] [, shift] [, animation] [, withEvent])

  Add a point to the series after render time. The point can be added at the end, or by giving it an X value, to the start or in the middle of the series.

  ##### Parameters:

  Name | Type | Argument | Default | Description
  --- | --- | --- | --- | ---
  `options` | Highcharts.PointOptionsType |  |  | The point options. If options is a single number, a point with that y value is appended to the series. If it is an array, it will be interpreted as x and y values respectively. If it is an object, advanced options as outlined under `series.data` are applied.
  `redraw` | boolean | <optional> | true | Whether to redraw the chart after the point is added. When adding more than one point, it is highly recommended that the redraw option be set to false, and instead Highcharts.Chart#redraw is explicitly called after the adding of points is finished. Otherwise, the chart will redraw after adding each point.
  `shift` | boolean | <optional> | false | If true, a point is shifted off the start of the series as one is appended to the end.
  `animation` | boolean | Partial.<Highcharts.AnimationOptionsObject> | <optional> |  | Whether to apply animation, and optionally animation configuration.
  `withEvent` | boolean | <optional> | true | Used internally, whether to fire the series `addPoint` event.

  ##### Fires:

  - Highcharts.Series#event:addPoint

  ##### Try it

  - Append point.
  - Append and shift.
  - Both X and Y values given.
  - Append pie slice.
  - Append 100 points in Highcharts Stock.
  - Append and shift in Highcharts Stock.
  - Add a point in Highmaps.

#### animate( [init])

  Animate in the series. Called internally twice. First with the `init` parameter set to true, which sets up the initial state of the animation. Then when ready, it is called with the `init` parameter undefined, in order to perform the actual animation.

  ##### Parameters:

  Name | Type | Argument | Description
  --- | --- | --- | ---
  `init` | boolean | <optional> | Initialize the animation.

#### drawPoints()

  Draw the markers for line-like series types, and columns or other graphical representation for Highcharts.Point objects for other series types. The resulting element is typically stored as Highcharts.Point.graphic, and is created on the first call and updated and moved on subsequent calls.

#### getName()

  Return series name in "Series {Number}" format or the one defined by a user. This method can be simply overridden as series name format can vary (e.g. technical indicators).

  ##### Returns:

  string .

  The series name.

#### getPlotBox()

  Get the translation and scale for the plot area of this series.

#### getValidPoints( [points] [, insideOnly] [, allowNull])

  Return the series points with null points filtered out.

  ##### Parameters:

  Name | Type | Argument | Default | Description
  --- | --- | --- | --- | ---
  `points` | Array.<Highcharts.Point> | <optional> |  | The points to inspect, defaults to Highcharts.Series.points.
  `insideOnly` | boolean | <optional> | false | Whether to inspect only the points that are inside the visible view.
  `allowNull` | boolean | <optional> | false | Whether to allow null points to pass as valid points.

  ##### Returns:

  Array.<Highcharts.Point> .

  The valid points.

#### groupData(table, groupPositions [, approximation])

  Highcharts Stock only. Takes parallel arrays of x and y data and groups the data into intervals defined by groupPositions, a collection of starting x values for each group.

  ##### Parameters:

  Name | Type | Argument | Description
  --- | --- | --- | ---
  `table` | Highcharts.DataTable |  | The series data table.
  `groupPositions` | Array.<number> |  | Group positions.
  `approximation` | string | function | <optional> | Approximation to use.

  ##### Returns:

  Highcharts.DataGroupingResultObject .

  Mapped groups.

#### hide()

  Hide the series if visible. If the chart.ignoreHiddenSeries option is true, the chart is redrawn without this series.

  ##### Fires:

  - Highcharts.Series#event:hide

  ##### Try it

  - Toggle visibility from a button.

#### is(type)

  Check whether the series item is itself or inherits from a certain series type.

  ##### Parameters:

  Name | Type | Description
  --- | --- | ---
  `type` | string | The type of series to check for, can be either featured or custom series types. For example `column`, `pie`, `ohlc` etc.

  ##### Returns:

  boolean .

  True if this item is or inherits from the given type.

#### markerAttribs(point [, state])

  Get non-presentational attributes for a point. Used internally for both styled mode and classic. Can be overridden for different series types.

  ##### Parameters:

  Name | Type | Argument | Description
  --- | --- | --- | ---
  `point` | Highcharts.Point |  | The Point to inspect.
  `state` | string | <optional> | The state, can be either `hover`, `select` or undefined.

  See also:
    - Highcharts.Series#pointAttribs

  ##### Returns:

  Highcharts.SVGAttributes .

  A hash containing those attributes that are not settable from CSS.

#### onMouseOut()

  Runs on mouse out of the series graphical items.

  ##### Fires:

  - Highcharts.Series#event:mouseOut

#### onMouseOver()

  Runs on mouse over the series graphical items.

  ##### Fires:

  - Highcharts.Series#event:mouseOver

#### remove( [redraw] [, animation] [, withEvent])

  Remove a series and optionally redraw the chart.

  ##### Parameters:

  Name | Type | Argument | Default | Description
  --- | --- | --- | --- | ---
  `redraw` | boolean | <optional> | true | Whether to redraw the chart or wait for an explicit call to Highcharts.Chart#redraw.
  `animation` | boolean | Partial.<Highcharts.AnimationOptionsObject> | <optional> |  | Whether to apply animation, and optionally animation configuration.
  `withEvent` | boolean | <optional> | true | Used internally, whether to fire the series `remove` event.

  ##### Fires:

  - Highcharts.Series#event:remove

  ##### Try it

  - Remove first series from a button.

#### removePoint(i [, redraw] [, animation])

  Remove a point from the series. Unlike the Highcharts.Point#remove method, this can also be done on a point that is not instantiated because it is outside the view or subject to Highcharts Stock data grouping.

  ##### Parameters:

  Name | Type | Argument | Default | Description
  --- | --- | --- | --- | ---
  `i` | number |  |  | The index of the point in the data array.
  `redraw` | boolean | <optional> | true | Whether to redraw the chart after the point is added. When removing more than one point, it is highly recommended that the `redraw` option be set to `false`, and instead Highcharts.Chart#redraw is explicitly called after the adding of points is finished.
  `animation` | boolean | Partial.<Highcharts.AnimationOptionsObject> | <optional> |  | Whether and optionally how the series should be animated.

  ##### Fires:

  - Highcharts.Point#event:remove

  ##### Try it

  - Remove cropped point.

#### render()

  Render the graph and markers. Called internally when first rendering and later when redrawing the chart. This function can be extended in plugins, but normally shouldn't be called directly.

  ##### Fires:

  - Highcharts.Series#event:afterRender

#### searchPoint(e [, compareX])

  Find the nearest point from a pointer event. This applies to series that use k-d-trees to get the nearest point. Native pointer events must be normalized using `Pointer.normalize`, that adds `chartX` and `chartY` properties.

  ##### Parameters:

  Name | Type | Argument | Default | Description
  --- | --- | --- | --- | ---
  `e` | Highcharts.PointerEvent |  |  | The normalized pointer event
  `compareX` | boolean | <optional> | false | Search only by the X value, not Y

  ##### Returns:

  Highcharts.Point | undefined .

  The closest point to the pointer event

  ##### Try it

  - Synchronized charts with tooltips.

#### select( [selected])

  Select or unselect the series. This means its selected property is set, the checkbox in the legend is toggled and when selected, the series is returned by the Highcharts.Chart#getSelectedSeries function.

  ##### Parameters:

  Name | Type | Argument | Description
  --- | --- | --- | ---
  `selected` | boolean | <optional> | True to select the series, false to unselect. If undefined, the selection state is toggled.

  ##### Fires:

  - Highcharts.Series#event:select
  - Highcharts.Series#event:unselect

  ##### Try it

  - Select a series from a button.

#### setData(data [, redraw] [, animation] [, updatePoints])

  Apply a new set of data to the series and optionally redraw it. The new data array is passed by reference (except in case of `updatePoints`), and may later be mutated when updating the chart data.

  Note the difference in behaviour when setting the same amount of points, or a different amount of points, as handled by the `updatePoints` parameter.

  ##### Parameters:

  Name | Type | Argument | Default | Description
  --- | --- | --- | --- | ---
  `data` | Array.<Highcharts.PointOptionsType> |  |  | Takes an array of data in the same format as described under `series.{type}.data` for the given series type, for example a line series would take data in the form described under series.line.data.
  `redraw` | boolean | <optional> | true | Whether to redraw the chart after the series is altered. If doing more operations on the chart, it is a good idea to set redraw to false and call Highcharts.Chart#redraw after.
  `animation` | boolean | Partial.<Highcharts.AnimationOptionsObject> | <optional> |  | When the updated data is the same length as the existing data, points will be updated by default, and animation visualizes how the points are changed. Set false to disable animation, or a configuration object to set duration or easing.
  `updatePoints` | boolean | <optional> | true | When this is true, points will be updated instead of replaced whenever possible. This occurs a) when the updated data is the same length as the existing data, b) when points are matched by their id's, or c) when points can be matched by X values. This allows updating with animation and performs better. In this case, the original array is not passed by reference. Set `false` to prevent.

  ##### Try it

  - Set new data from a button.
  - Set data in a pie.
  - Set new data in Highcharts Stock.
  - Set new data in Highmaps.

#### setState( [state] [, inherit])

  Set the state of the series. Called internally on mouse interaction operations, but it can also be called directly to visually highlight a series.

  ##### Parameters:

  Name | Type | Argument | Description
  --- | --- | --- | ---
  `state` | Highcharts.SeriesStateValue | "" | <optional> | The new state, can be either `'hover'`, `'inactive'`, `'select'`, or `''` (an empty string), `'normal'` or `undefined` to set to normal state.
  `inherit` | boolean | <optional> | Determines if state should be inherited by points too.

#### setVisible( [visible] [, redraw])

  Show or hide the series.

  ##### Parameters:

  Name | Type | Argument | Default | Description
  --- | --- | --- | --- | ---
  `visible` | boolean | <optional> |  | True to show the series, false to hide. If undefined, the visibility is toggled.
  `redraw` | boolean | <optional> | true | Whether to redraw the chart after the series is altered. If doing more operations on the chart, it is a good idea to set redraw to false and call chart.redraw() after.

  ##### Fires:

  - Highcharts.Series#event:hide
  - Highcharts.Series#event:show

#### show()

  Show the series if hidden.

  ##### Fires:

  - Highcharts.Series#event:show

  ##### Try it

  - Toggle visibility from a button.

#### sonify( [onEnd])

  Play a sonification of a series.

  ##### Parameters:

  Name | Type | Argument | Description
  --- | --- | --- | ---
  `onEnd` | Highcharts.SonificationChartEventCallback | <optional> | Callback to call after play completed

  ##### Requires:

  - module:modules/sonification

#### translate()

  Translate data points from raw data values to chart specific positioning data needed later in the `drawPoints` and `drawGraph` functions. This function can be overridden in plugins and custom series type implementations.

  ##### Fires:

  - Highcharts.Series#events:translate

#### update(options [, redraw])

  Update the series with a new set of options. For a clean and precise handling of new options, all methods and elements from the series are removed, and it is initialized from scratch. Therefore, this method is more performance expensive than some other utility methods like Highcharts.Series#setData or Highcharts.Series#setVisible.

  Note that `Series.update` may mutate the passed `data` options.

  ##### Parameters:

  Name | Type | Argument | Default | Description
  --- | --- | --- | --- | ---
  `options` | Highcharts.SeriesOptionsType |  |  | New options that will be merged with the series' existing options.
  `redraw` | boolean | <optional> | true | Whether to redraw the chart after the series is altered. If doing more operations on the chart, it is a good idea to set redraw to false and call Highcharts.Chart#redraw after.

  ##### Fires:

  - Highcharts.Series#event:update
  - Highcharts.Series#event:afterUpdate

  ##### Try it

  - Updating series options.
  - Update series options in Highmaps.

#### <static> registerType(seriesType, SeriesClass)

  Registers a series class to be accessible via `Series.types`.

  ##### Parameters:

  Name | Type | Description
  --- | --- | ---
  `seriesType` | string | The series type as an identifier string in lower case.
  `SeriesClass` | function | The series class as a class pattern or a constructor function with prototype.