Candlestick Charts

BinderScriptNotebook

Summary: This example shows how to create candlestick charts in F#.

let's first create some data for the purpose of creating example charts:

#r "nuget: FSharp.Data"
#r "nuget: Deedle"

open FSharp.Data
open Deedle

let data = 
    Http.RequestString @"https://raw.githubusercontent.com/plotly/datasets/master/finance-charts-apple.csv"
    |> fun csv -> Frame.ReadCsvString(csv,true,separators=",")

let openData : seq<float> = data.["AAPL.Open"] |> Series.values
let highData : seq<float> = data.["AAPL.High"] |> Series.values
let lowData : seq<float> = data.["AAPL.Low"] |> Series.values
let closeData : seq<float> = data.["AAPL.Close"] |> Series.values
let dateData = data |> Frame.getCol "Date" |> Series.values |> Seq.map System.DateTime.Parse

An open-high-low-close chart (also OHLC) is a type of chart typically used to illustrate movements in the price of a financial instrument over time. Each vertical line on the chart shows the price range (the highest and lowest prices) over one unit of time. Tick marks project from each side of the line indicating the opening price (e.g., for a daily bar chart this would be the starting price for that day) on the left, and the closing price for that time period on the right. The bars may be shown in different hues depending on whether prices rose or fell in that period.

You can create an OHLC chart using Chart.OHLC:

open Plotly.NET
open Plotly.NET.TraceObjects

let ohlc1 = 
    Chart.OHLC(
        openData |> Seq.take 30,
        highData |> Seq.take 30,
        lowData |> Seq.take 30,
        closeData |> Seq.take 30,
        dateData |> Seq.take 30
    )

Changing the increasing/decresing colors

let ohlc2= 
    Chart.OHLC(
        openData,
        highData,
        lowData,
        closeData,
        dateData,
        IncreasingColor = Color.fromKeyword Cyan,
        DecreasingColor = Color.fromKeyword Gray
    )

Removing the rangeslider

If you want to hide the rangeslider, use withXAxisRangeSlider and hide it:

open Plotly.NET.LayoutObjects

let rangeslider = RangeSlider.init(Visible=false)

let ohlc3 = 
    ohlc2
    |> Chart.withXAxisRangeSlider rangeslider
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namespace FSharp

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namespace Microsoft.FSharp
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namespace FSharp.Data

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namespace Microsoft.FSharp.Data
namespace Deedle
val data : Frame<int,string>
type Http = private new : unit -> Http static member private AppendQueryToUrl : url:string * query:(string * string) list -> string static member AsyncRequest : url:string * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?responseEncodingOverride:string * ?customizeHttpRequest:(HttpWebRequest -> HttpWebRequest) * ?timeout:int -> Async<HttpResponse> static member AsyncRequestStream : url:string * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?customizeHttpRequest:(HttpWebRequest -> HttpWebRequest) * ?timeout:int -> Async<HttpResponseWithStream> static member AsyncRequestString : url:string * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?responseEncodingOverride:string * ?customizeHttpRequest:(HttpWebRequest -> HttpWebRequest) * ?timeout:int -> Async<string> static member private EncodeFormData : query:string -> string static member private InnerRequest : url:string * toHttpResponse:(string -> int -> string -> string -> 'a0 option -> Map<string,string> -> Map<string,string> -> Stream -> Async<'a1>) * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?responseEncodingOverride:'a0 * ?customizeHttpRequest:(HttpWebRequest -> HttpWebRequest) * ?timeout:int -> Async<'a1> static member Request : url:string * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?responseEncodingOverride:string * ?customizeHttpRequest:(HttpWebRequest -> HttpWebRequest) * ?timeout:int -> HttpResponse static member RequestStream : url:string * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?customizeHttpRequest:(HttpWebRequest -> HttpWebRequest) * ?timeout:int -> HttpResponseWithStream static member RequestString : url:string * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?responseEncodingOverride:string * ?customizeHttpRequest:(HttpWebRequest -> HttpWebRequest) * ?timeout:int -> string
<summary> Utilities for working with network via HTTP. Includes methods for downloading resources with specified headers, query parameters and HTTP body </summary>
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static member Http.RequestString : url:string * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:System.Net.CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?responseEncodingOverride:string * ?customizeHttpRequest:(System.Net.HttpWebRequest -> System.Net.HttpWebRequest) * ?timeout:int -> string

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static member Http.RequestString : url:string * ?query:(string * string) list * ?headers:seq<string * string> * ?httpMethod:string * ?body:HttpRequestBody * ?cookies:seq<string * string> * ?cookieContainer:System.Net.CookieContainer * ?silentHttpErrors:bool * ?silentCookieErrors:bool * ?responseEncodingOverride:string * ?customizeHttpRequest:(System.Net.HttpWebRequest -> System.Net.HttpWebRequest) * ?timeout:int -> string
val csv : string
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module Frame from Deedle

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type Frame = static member ReadCsv : location:string * hasHeaders:Nullable<bool> * inferTypes:Nullable<bool> * inferRows:Nullable<int> * schema:string * separators:string * culture:string * maxRows:Nullable<int> * missingValues:string [] * preferOptions:bool -> Frame<int,string> + 1 overload static member ReadReader : reader:IDataReader -> Frame<int,string> static member CustomExpanders : Dictionary<Type,Func<obj,seq<string * Type * obj>>> static member NonExpandableInterfaces : ResizeArray<Type> static member NonExpandableTypes : HashSet<Type>

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type Frame<'TRowKey,'TColumnKey (requires equality and equality)> = interface IDynamicMetaObjectProvider interface INotifyCollectionChanged interface IFsiFormattable interface IFrame new : rowIndex:IIndex<'TRowKey> * columnIndex:IIndex<'TColumnKey> * data:IVector<IVector> * indexBuilder:IIndexBuilder * vectorBuilder:IVectorBuilder -> Frame<'TRowKey,'TColumnKey> + 1 overload member AddColumn : column:'TColumnKey * series:seq<'V> -> unit + 3 overloads member AggregateRowsBy : groupBy:seq<'TColumnKey> * aggBy:seq<'TColumnKey> * aggFunc:Func<Series<'TRowKey,'a>,'b> -> Frame<int,'TColumnKey> member Clone : unit -> Frame<'TRowKey,'TColumnKey> member ColumnApply : f:Func<Series<'TRowKey,'T>,ISeries<'TRowKey>> -> Frame<'TRowKey,'TColumnKey> + 1 overload member DropColumn : column:'TColumnKey -> unit ...

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new : names:seq<'TColumnKey> * columns:seq<ISeries<'TRowKey>> -> Frame<'TRowKey,'TColumnKey>
new : rowIndex:Indices.IIndex<'TRowKey> * columnIndex:Indices.IIndex<'TColumnKey> * data:IVector<IVector> * indexBuilder:Indices.IIndexBuilder * vectorBuilder:Vectors.IVectorBuilder -> Frame<'TRowKey,'TColumnKey>
static member Frame.ReadCsvString : csvString:string * ?hasHeaders:bool * ?inferTypes:bool * ?inferRows:int * ?schema:string * ?separators:string * ?culture:string * ?maxRows:int * ?missingValues:string [] * ?preferOptions:bool -> Frame<int,string>
val openData : seq<float>
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val seq : sequence:seq<'T> -> seq<'T>
<summary>Builds a sequence using sequence expression syntax</summary>
<param name="sequence">The input sequence.</param>
<returns>The result sequence.</returns>


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type seq<'T> = System.Collections.Generic.IEnumerable<'T>
<summary>An abbreviation for the CLI type <see cref="T:System.Collections.Generic.IEnumerable`1" /></summary>
<remarks> See the <see cref="T:Microsoft.FSharp.Collections.SeqModule" /> module for further operations related to sequences. See also <a href="https://docs.microsoft.com/dotnet/fsharp/language-reference/sequences">F# Language Guide - Sequences</a>. </remarks>
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val float : value:'T -> float (requires member op_Explicit)
<summary>Converts the argument to 64-bit float. This is a direct conversion for all primitive numeric types. For strings, the input is converted using <c>Double.Parse()</c> with InvariantCulture settings. Otherwise the operation requires an appropriate static conversion method on the input type.</summary>
<param name="value">The input value.</param>
<returns>The converted float</returns>


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[<Struct>] type float = System.Double
<summary>An abbreviation for the CLI type <see cref="T:System.Double" />.</summary>
<category>Basic Types</category>


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type float<'Measure> = float
<summary>The type of double-precision floating point numbers, annotated with a unit of measure. The unit of measure is erased in compiled code and when values of this type are analyzed using reflection. The type is representationally equivalent to <see cref="T:System.Double" />.</summary>
<category index="6">Basic Types with Units of Measure</category>
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module Series from Deedle

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type Series = static member ofNullables : values:seq<Nullable<'a0>> -> Series<int,'a0> (requires default constructor and value type and 'a0 :> ValueType) static member ofObservations : observations:seq<'c * 'd> -> Series<'c,'d> (requires equality) static member ofOptionalObservations : observations:seq<'K * 'a1 option> -> Series<'K,'a1> (requires equality) static member ofValues : values:seq<'a> -> Series<int,'a>

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type Series<'K,'V (requires equality)> = interface IFsiFormattable interface ISeries<'K> new : index:IIndex<'K> * vector:IVector<'V> * vectorBuilder:IVectorBuilder * indexBuilder:IIndexBuilder -> Series<'K,'V> + 3 overloads member After : lowerExclusive:'K -> Series<'K,'V> member Aggregate : aggregation:Aggregation<'K> * keySelector:Func<DataSegment<Series<'K,'V>>,'TNewKey> * valueSelector:Func<DataSegment<Series<'K,'V>>,OptionalValue<'R>> -> Series<'TNewKey,'R> (requires equality) + 1 overload member AsyncMaterialize : unit -> Async<Series<'K,'V>> member Before : upperExclusive:'K -> Series<'K,'V> member Between : lowerInclusive:'K * upperInclusive:'K -> Series<'K,'V> member Compare : another:Series<'K,'V> -> Series<'K,Diff<'V>> member Convert : forward:Func<'V,'R> * backward:Func<'R,'V> -> Series<'K,'R> ...

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new : pairs:seq<System.Collections.Generic.KeyValuePair<'K,'V>> -> Series<'K,'V>
new : keys:seq<'K> * values:seq<'V> -> Series<'K,'V>
new : keys:'K [] * values:'V [] -> Series<'K,'V>
new : index:Indices.IIndex<'K> * vector:IVector<'V> * vectorBuilder:Vectors.IVectorBuilder * indexBuilder:Indices.IIndexBuilder -> Series<'K,'V>
val values : series:Series<'K,'T> -> seq<'T> (requires equality)
val highData : seq<float>
val lowData : seq<float>
val closeData : seq<float>
val dateData : seq<System.DateTime>
val getCol : column:'C -> frame:Frame<'R,'C> -> Series<'R,'V> (requires equality and equality)
module Seq from Microsoft.FSharp.Collections
<summary>Contains operations for working with values of type <see cref="T:Microsoft.FSharp.Collections.seq`1" />.</summary>
val map : mapping:('T -> 'U) -> source:seq<'T> -> seq<'U>
<summary>Builds a new collection whose elements are the results of applying the given function to each of the elements of the collection. The given function will be applied as elements are demanded using the <c>MoveNext</c> method on enumerators retrieved from the object.</summary>
<remarks>The returned sequence may be passed between threads safely. However, individual IEnumerator values generated from the returned sequence should not be accessed concurrently.</remarks>
<param name="mapping">A function to transform items from the input sequence.</param>
<param name="source">The input sequence.</param>
<returns>The result sequence.</returns>
<exception cref="T:System.ArgumentNullException">Thrown when the input sequence is null.</exception>
namespace System
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[<Struct>] type DateTime = new : year: int * month: int * day: int -> unit + 10 overloads member Add : value: TimeSpan -> DateTime member AddDays : value: float -> DateTime member AddHours : value: float -> DateTime member AddMilliseconds : value: float -> DateTime member AddMinutes : value: float -> DateTime member AddMonths : months: int -> DateTime member AddSeconds : value: float -> DateTime member AddTicks : value: int64 -> DateTime member AddYears : value: int -> DateTime ...
<summary>Represents an instant in time, typically expressed as a date and time of day.</summary>

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System.DateTime ()
   (+0 other overloads)
System.DateTime(ticks: int64) : System.DateTime
   (+0 other overloads)
System.DateTime(ticks: int64, kind: System.DateTimeKind) : System.DateTime
   (+0 other overloads)
System.DateTime(year: int, month: int, day: int) : System.DateTime
   (+0 other overloads)
System.DateTime(year: int, month: int, day: int, calendar: System.Globalization.Calendar) : System.DateTime
   (+0 other overloads)
System.DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int) : System.DateTime
   (+0 other overloads)
System.DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, kind: System.DateTimeKind) : System.DateTime
   (+0 other overloads)
System.DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, calendar: System.Globalization.Calendar) : System.DateTime
   (+0 other overloads)
System.DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, millisecond: int) : System.DateTime
   (+0 other overloads)
System.DateTime(year: int, month: int, day: int, hour: int, minute: int, second: int, millisecond: int, kind: System.DateTimeKind) : System.DateTime
   (+0 other overloads)
System.DateTime.Parse(s: string) : System.DateTime
System.DateTime.Parse(s: string, provider: System.IFormatProvider) : System.DateTime
System.DateTime.Parse(s: string, provider: System.IFormatProvider, styles: System.Globalization.DateTimeStyles) : System.DateTime
System.DateTime.Parse(s: System.ReadOnlySpan<char>,?provider: System.IFormatProvider,?styles: System.Globalization.DateTimeStyles) : System.DateTime
namespace Plotly
namespace Plotly.NET
namespace Plotly.NET.TraceObjects
val ohlc1 : GenericChart.GenericChart
type Chart = static member AnnotatedHeatmap : zData:seq<#seq<'a1>> * annotationText:seq<#seq<string>> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?X:seq<#IConvertible> * ?XGap:int * ?Y:seq<#IConvertible> * ?YGap:int * ?Text:'a5 * ?MultiText:seq<'a5> * ?ColorBar:ColorBar * ?ColorScale:Colorscale * ?ShowScale:bool * ?ReverseScale:bool * ?ZSmooth:SmoothAlg * ?Transpose:bool * ?UseWebGL:bool * ?ReverseYAxis:bool * ?UseDefaults:bool -> GenericChart (requires 'a1 :> IConvertible and 'a5 :> IConvertible) static member Area : x:seq<#IConvertible> * y:seq<#IConvertible> * ?Name:string * ?ShowMarkers:bool * ?ShowLegend:bool * ?MarkerSymbol:MarkerSymbol * ?Color:Color * ?Opacity:float * ?Labels:seq<#IConvertible> * ?TextPosition:TextPosition * ?TextFont:Font * ?Dash:DrawingStyle * ?Width:float * ?UseDefaults:bool -> GenericChart + 1 overload static member Bar : values:seq<#IConvertible> * ?Keys:seq<#IConvertible> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?MultiOpacity:seq<float> * ?Text:'a2 * ?MultiText:seq<'a2> * ?MarkerColor:Color * ?MarkerColorScale:Colorscale * ?MarkerOutline:Line * ?MarkerPatternShape:PatternShape * ?MultiMarkerPatternShape:seq<PatternShape> * ?MarkerPattern:Pattern * ?Marker:Marker * ?Base:#IConvertible * ?Width:'a4 * ?MultiWidth:seq<'a4> * ?TextPosition:TextPosition * ?MultiTextPosition:seq<TextPosition> * ?UseDefaults:bool -> GenericChart (requires 'a2 :> IConvertible and 'a4 :> IConvertible) + 1 overload static member BoxPlot : ?x:seq<#IConvertible> * ?y:seq<#IConvertible> * ?Name:string * ?ShowLegend:bool * ?Text:'a2 * ?MultiText:seq<'a2> * ?Fillcolor:Color * ?MarkerColor:Color * ?OutlierColor:Color * ?OutlierWidth:int * ?Opacity:float * ?WhiskerWidth:float * ?BoxPoints:BoxPoints * ?BoxMean:BoxMean * ?Jitter:float * ?PointPos:float * ?Orientation:Orientation * ?Marker:Marker * ?Line:Line * ?AlignmentGroup:string * ?Offsetgroup:string * ?Notched:bool * ?NotchWidth:float * ?QuartileMethod:QuartileMethod * ?UseDefaults:bool -> GenericChart (requires 'a2 :> IConvertible) + 1 overload static member Bubble : x:seq<#IConvertible> * y:seq<#IConvertible> * sizes:seq<int> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?MultiOpacity:seq<float> * ?Text:'a2 * ?MultiText:seq<'a2> * ?TextPosition:TextPosition * ?MultiTextPosition:seq<TextPosition> * ?MarkerColor:Color * ?MarkerColorScale:Colorscale * ?MarkerOutline:Line * ?MarkerSymbol:MarkerSymbol * ?MultiMarkerSymbol:seq<MarkerSymbol> * ?Marker:Marker * ?LineColor:Color * ?LineColorScale:Colorscale * ?LineWidth:float * ?LineDash:DrawingStyle * ?Line:Line * ?StackGroup:string * ?Orientation:Orientation * ?GroupNorm:GroupNorm * ?UseWebGL:bool * ?UseDefaults:bool -> GenericChart (requires 'a2 :> IConvertible) + 1 overload static member Candlestick : open:seq<#IConvertible> * high:seq<#IConvertible> * low:seq<#IConvertible> * close:seq<#IConvertible> * x:seq<#IConvertible> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?Text:'a5 * ?MultiText:seq<'a5> * ?Line:Line * ?IncreasingColor:Color * ?Increasing:FinanceMarker * ?DecreasingColor:Color * ?Decreasing:FinanceMarker * ?WhiskerWidth:float * ?UseDefaults:bool -> GenericChart (requires 'a5 :> IConvertible) + 1 overload static member Column : values:seq<#IConvertible> * ?Keys:seq<#IConvertible> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?MultiOpacity:seq<float> * ?Text:'a2 * ?MultiText:seq<'a2> * ?MarkerColor:Color * ?MarkerColorScale:Colorscale * ?MarkerOutline:Line * ?MarkerPatternShape:PatternShape * ?MultiMarkerPatternShape:seq<PatternShape> * ?MarkerPattern:Pattern * ?Marker:Marker * ?Base:#IConvertible * ?Width:'a4 * ?MultiWidth:seq<'a4> * ?TextPosition:TextPosition * ?MultiTextPosition:seq<TextPosition> * ?UseDefaults:bool -> GenericChart (requires 'a2 :> IConvertible and 'a4 :> IConvertible) + 1 overload static member Contour : zData:seq<#seq<'a1>> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?X:seq<#IConvertible> * ?Y:seq<#IConvertible> * ?Text:'a4 * ?MultiText:seq<'a4> * ?ColorBar:ColorBar * ?ColorScale:Colorscale * ?ShowScale:bool * ?ReverseScale:bool * ?Transpose:bool * ?LineColor:Color * ?LineDash:DrawingStyle * ?Line:Line * ?ContoursColoring:ContourColoring * ?ContoursOperation:ConstraintOperation * ?ContoursType:ContourType * ?ShowContourLabels:bool * ?ContourLabelFont:Font * ?Contours:Contours * ?FillColor:Color * ?NContours:int * ?UseDefaults:bool -> GenericChart (requires 'a1 :> IConvertible and 'a4 :> IConvertible) static member Funnel : x:seq<#IConvertible> * y:seq<#IConvertible> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?Width:float * ?Offset:float * ?Text:'a2 * ?MultiText:seq<'a2> * ?TextPosition:TextPosition * ?MultiTextPosition:seq<TextPosition> * ?Orientation:Orientation * ?AlignmentGroup:string * ?OffsetGroup:string * ?MarkerColor:Color * ?MarkerOutline:Line * ?Marker:Marker * ?TextInfo:TextInfo * ?ConnectorLineColor:Color * ?ConnectorLineStyle:DrawingStyle * ?ConnectorFillColor:Color * ?ConnectorLine:Line * ?Connector:FunnelConnector * ?InsideTextFont:Font * ?OutsideTextFont:Font * ?UseDefaults:bool -> GenericChart (requires 'a2 :> IConvertible) static member Heatmap : zData:seq<#seq<'a1>> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?X:seq<#IConvertible> * ?XGap:int * ?Y:seq<#IConvertible> * ?YGap:int * ?Text:'a4 * ?MultiText:seq<'a4> * ?ColorBar:ColorBar * ?ColorScale:Colorscale * ?ShowScale:bool * ?ReverseScale:bool * ?ZSmooth:SmoothAlg * ?Transpose:bool * ?UseWebGL:bool * ?ReverseYAxis:bool * ?UseDefaults:bool -> GenericChart (requires 'a1 :> IConvertible and 'a4 :> IConvertible) + 1 overload ...
static member Chart.OHLC : stockTimeSeries:seq<System.DateTime * StockData> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?Text:'a0 * ?MultiText:seq<'a0> * ?Line:Line * ?IncreasingColor:Color * ?Increasing:FinanceMarker * ?DecreasingColor:Color * ?Decreasing:FinanceMarker * ?TickWidth:float * ?UseDefaults:bool -> GenericChart.GenericChart (requires 'a0 :> System.IConvertible)
static member Chart.OHLC : open:seq<#System.IConvertible> * high:seq<#System.IConvertible> * low:seq<#System.IConvertible> * close:seq<#System.IConvertible> * x:seq<#System.IConvertible> * ?Name:string * ?ShowLegend:bool * ?Opacity:float * ?Text:'f * ?MultiText:seq<'f> * ?Line:Line * ?IncreasingColor:Color * ?Increasing:FinanceMarker * ?DecreasingColor:Color * ?Decreasing:FinanceMarker * ?TickWidth:float * ?UseDefaults:bool -> GenericChart.GenericChart (requires 'f :> System.IConvertible)
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module Seq from Plotly.NET

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module Seq from Microsoft.FSharp.Collections
<summary>Contains operations for working with values of type <see cref="T:Microsoft.FSharp.Collections.seq`1" />.</summary>
val take : count:int -> source:seq<'T> -> seq<'T>
<summary>Returns the first N elements of the sequence.</summary>
<remarks>Throws <c>InvalidOperationException</c> if the count exceeds the number of elements in the sequence. <c>Seq.truncate</c> returns as many items as the sequence contains instead of throwing an exception.</remarks>
<param name="count">The number of items to take.</param>
<param name="source">The input sequence.</param>
<returns>The result sequence.</returns>
<exception cref="T:System.ArgumentNullException">Thrown when the input sequence is null.</exception>
<exception cref="T:System.ArgumentException">Thrown when the input sequence is empty.</exception>
<exception cref="T:System.InvalidOperationException">Thrown when count exceeds the number of elements in the sequence.</exception>
module GenericChart from Plotly.NET
<summary> Module to represent a GenericChart </summary>
val toChartHTML : gChart:GenericChart.GenericChart -> string
<summary> Converts a GenericChart to it HTML representation. The div layer has a default size of 600 if not specified otherwise. </summary>
val ohlc2 : GenericChart.GenericChart
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module Color from Plotly.NET

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type Color = private new : obj:obj -> Color override Equals : other:obj -> bool override GetHashCode : unit -> int static member fromARGB : a:int -> r:int -> g:int -> b:int -> Color static member fromColorScaleValues : c:seq<#IConvertible> -> Color static member fromColors : c:seq<Color> -> Color static member fromHex : s:string -> Color static member fromKeyword : c:ColorKeyword -> Color static member fromRGB : r:int -> g:int -> b:int -> Color static member fromString : c:string -> Color ...
<summary> Plotly color can be a single color, a sequence of colors, or a sequence of numeric values referencing the color of the colorscale obj </summary>
static member Color.fromKeyword : c:ColorKeyword -> Color
union case ColorKeyword.Cyan: ColorKeyword
union case ColorKeyword.Gray: ColorKeyword
namespace Plotly.NET.LayoutObjects
val rangeslider : RangeSlider
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type RangeSlider = inherit DynamicObj new : unit -> RangeSlider static member init : ?BgColor:Color * ?BorderColor:Color * ?BorderWidth:float * ?AutoRange:bool * ?Range:Range * ?Thickness:float * ?Visible:bool * ?YAxisRangeMode:RangesliderRangeMode * ?YAxisRange:Range -> RangeSlider static member style : ?BgColor:Color * ?BorderColor:Color * ?BorderWidth:float * ?AutoRange:bool * ?Range:Range * ?Thickness:float * ?Visible:bool * ?YAxisRangeMode:RangesliderRangeMode * ?YAxisRange:Range -> (RangeSlider -> RangeSlider)

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new : unit -> RangeSlider
static member RangeSlider.init : ?BgColor:Color * ?BorderColor:Color * ?BorderWidth:float * ?AutoRange:bool * ?Range:StyleParam.Range * ?Thickness:float * ?Visible:bool * ?YAxisRangeMode:StyleParam.RangesliderRangeMode * ?YAxisRange:StyleParam.Range -> RangeSlider
val ohlc3 : GenericChart.GenericChart
static member Chart.withXAxisRangeSlider : rangeSlider:RangeSlider * ?Id:StyleParam.SubPlotId -> (GenericChart.GenericChart -> GenericChart.GenericChart)