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阅读我收集的文章Analyzing and Visualizing Data with F#（https://www.oreilly.com/ideas/analyzing-and-visualizing-data-with-f-sharp/page/2/analyzing-data-using-f-and-deedle ）（也许错误地）可以将Deedle DataFramein FSharp Interactive( FSI) 的内容显示为一张漂亮的表格。

让我这么想的文本片段如下：

When you create a data frame, F# Interactive formats it nicely so you can get a quick idea about the data. For example, in Table 2-1 you can see the ranges of the values and which values are frequently missing.

这些行前面有一个漂亮的表格，显示DataFrame.

无需安装和打开FSLab，按照文章中的建议，当我可以创建一个DataFrame，FSI然后输入它的名称和“;;” 我得到这样的东西：

> df;;
val it : Frame<int,string> =
  Deedle.Frame`2[System.Int32,System.String]
    {ColumnCount = 2;
     ColumnIndex = Deedle.Indices.Linear.LinearIndex`1[System.String];
     ColumnKeys = seq ["A"; "B"];
     ColumnTypes = seq [System.Int32; System.Int32];
     Columns = series [ A => series [ 0 => 1; 1 => 2; 2 => 3; 3 => 4; 4 => 5;  ... ; 9 => 10]; B => series [ 0 => 11; 1 => 12; 2 => 13; 3 => 14; 4 => 15;  ... ; 9 => 20]];
     ColumnsDense = series [ A => series [ 0 => 1; 1 => 2; 2 => 3; 3 => 4; 4 => 5;  ... ; 9 => 10]; B => series [ 0 => 11; 1 => 12; 2 => 13; 3 => 14; 4 => 15;  ... ; 9 => 20]];
     IsEmpty = false;
     Item = ?;
     Item = ?;
     RowCount = 10;
     RowIndex = Deedle.Indices.Linear.LinearIndex`1[System.Int32];
     RowKeys = seq [0; 1; 2; 3; ...];
     Rows = series [ 0 => series [ A => 1; B => 11]; 1 => series [ A => 2; B => 12]; 2 => series [ A => 3; B => 13]; 3 => series [ A => 4; B => 14]; 4 => series [ A => 5; B => 15];  ... ; 9 => series [ A => 10; B => 20]];
     RowsDense = series [ 0 => series [ A => 1; B => 11]; 1 => series [ A => 2; B => 12]; 2 => series [ A => 3; B => 13]; 3 => series [ A => 4; B => 14]; 4 => series [ A => 5; B => 15];  ... ; 9 => series [ A => 10; B => 20]];}

所以我尝试安装FSLab，但它似乎与我之前安装的软件包版本不兼容。安装未通过，我收到以下消息：

Severity    Code    Description Project File    Line    Suppression State
Error       Unable to resolve dependencies. 'FSharp.Data 2.4.6' is not compatible with 'FsLab 1.0.2 constraint: FSharp.Data (= 2.3.2)'.         0

我怀疑这个问题有一个简单的解决方案。

所以，

1）我真的可以得到一个很好的表格来显示Deedle DataFramein的内容FSI（就像一个表格一样，例如 in RStudiofor R）？

2）如果是，我应该怎么做才能在不向后移动我安装的软件包版本的情况下可视化这些表格？

4

1 回答 1

9

Deedle.fsx如果您使用包中包含的加载脚本引用 Deedle，则会自动注册 F# Interactive 的打印机：

#load "packages/Deedle/Deedle.fsx"
open Deedle

let df = 
  [ "First" => Series.ofValues [1;2;3;4]
    "Second" => Series.ofValues [1;2;3;4] ]
  |> frame

如果你使用 Paket 引用 Deedle 并运行上面的代码，你会得到很好的打印输出。或者，您也可以通过显式调用获得相同的输出：

df.Print()
于 2018-03-30T21:58:06.120 回答