#r "nuget: Plotly.NET, 2.0.0"
#r "nuget: Plotly.NET.Interactive, 2.0.0"

Tables

   

This example shows how to create tables in F#.

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

open Plotly.NET 
open Plotly.NET.StyleParam
  

let table1 =
    let header = ["<b>RowIndex</b>";"A";"simple";"table"]
    let rows = 
        [
         ["0";"I"     ;"am"     ;"a"]        
         ["1";"little";"example";"!"]       
        ]
    Chart.Table(header, rows)

table1

A little bit of styling:

let table2 =
    let header = ["<b>RowIndex</b>";"A";"simple";"table"]
    let rows = 
          [
           ["0";"I"     ;"am"     ;"a"]        
           ["1";"little";"example";"!"]       
          ]
    Chart.Table(
        header,
        rows,
        HeaderAlign = StyleParam.HorizontalAlign.Center,
        CellsMultiAlign  = [StyleParam.HorizontalAlign.Left; StyleParam.HorizontalAlign.Center; StyleParam.HorizontalAlign.Right],
        HeaderFillColor = Color.fromString "#45546a",
        CellsFillColor  = Color.fromColors [Color.fromString "#deebf7"; Color.fromString "lightgrey"; Color.fromString "#deebf7"; Color.fromString "lightgrey"],
        HeaderHeight = 30,
        HeaderOutlineColor  = Color.fromString "black",                     
        HeaderOutlineWidth  = 2.,                     
        MultiColumnWidth = [70.; 50.; 100.; 70.],      
        ColumnOrder = [1; 2; 3; 4]
    )

table2

Value dependent cell coloring:

let table3 =
    let header2 = ["Identifier";"T0";"T1";"T2";"T3"]
    let rowvalues = 
        [
         [10001.;0.2;2.0;4.0;5.0]
         [10002.;2.1;2.0;1.8;2.1]
         [10003.;4.5;3.0;2.0;2.5]
         [10004.;0.0;0.1;0.3;0.2]
         [10005.;1.0;1.6;1.8;2.2]
         [10006.;1.0;0.8;1.5;0.7]
         [10007.;2.0;2.0;2.1;1.9]
        ]
        |> Seq.sortBy (fun x -> x.[1])
    
    //map color from value to hex representation
    let mapColor min max value = 
        let proportion = 
            (255. * (value - min) / (max - min))
            |> int
        Color.fromRGB 255 (255 - proportion) proportion
        
    //Assign a color to every cell seperately. Matrix must be transposed for correct orientation.
    let cellcolor = 
         rowvalues
         |> Seq.map (fun row ->
            row 
            |> Seq.mapi (fun index value -> 
                if index = 0 then Color.fromString "white"
                else mapColor 0. 5. value
                )
            )
        |> Seq.transpose
        |> Seq.map Color.fromColors
        |> Color.fromColors

    Chart.Table(
        header2,
        rowvalues,
        CellsFillColor=cellcolor
    )

table3

Sequence representation:

let table4 =
    let sequence =
        [
        "ATGAGACGTCGAGACTGATAGACGTCGATAGACGTCGATAGACCG"
        "ATAGACTCGTGATAGACGTCGATAGACGTCGATAGAGTATAGACC"
        "GTGATAGACGTCGAGAAGACGTCGATAGACGTCGATAGACGTCGA"
        "TAGAGATAGACGTCGATAGACCGTATAGAAGACGTCGATAGATAG"
        "ACGTCGATAGACCGTAGACGTCGATAGACGTCGATAGACCGT"
        ]
        |> String.concat ""

    let elementsPerRow = 60

    let headers = 
        [0..elementsPerRow] 
        |> Seq.map (fun x -> 
            if x%10=0 && x <> 0 then "|" 
            else ""
            )

    let cells = 
        sequence
        |> Seq.chunkBySize elementsPerRow
        |> Seq.mapi (fun i x -> Seq.append [string (i * elementsPerRow)] (Seq.map string x))

    let cellcolors =
        cells
        |> Seq.map (fun row -> 
            row 
            |> Seq.map (fun element -> 
                match element with
                //colors taken from DRuMS 
                //(http://biomodel.uah.es/en/model4/dna/atgc.htm)
                | "A" -> Color.fromString "#5050FF" 
                | "T" -> Color.fromString "#E6E600"
                | "G" -> Color.fromString "#00C000"
                | "C" -> Color.fromString "#E00000"
                | "U" -> Color.fromString "#B48100"
                | _   -> Color.fromString "white"
                )
            )
        |> Seq.transpose
        |> Seq.map (fun x -> Seq.append x (seq [Color.fromString "white"]))
        |> Seq.map Color.fromColors
        |> Color.fromColors

    let line = Line.init(Width = 0., Color = Color.fromString "white")
    let chartwidth = 50 + 10 * elementsPerRow

    Chart.Table(
        headers,
        cells,
        CellsOutline   = line,
        HeaderOutline  = line,
        CellsHeight = 20,
        MultiColumnWidth = [50.;10.],
        CellsMultiAlign  = [StyleParam.HorizontalAlign.Right;StyleParam.HorizontalAlign.Center],
        CellsFillColor  = cellcolors, 
        UseDefaults = false
        )
    |> Chart.withSize(Width=chartwidth)
    |> Chart.withTitle "Sequence A"

table4