为什么Deedle的Frame.X静态方法在VS 2017中生成警告?

问题描述

我昨天下载了新的VS 2017，并且运行正常，除了我从Deedle包调用静态方法Frame.ReadCsv的每一行都收到此警告:

I downloaded the new VS 2017 yesterday and it is working fine, except that I am getting this warning on every line where I call the static method Frame.ReadCsv from the Deedle package:

FS10001 This method is not intended for use from F#

对其他静态方法Frame.X的调用不会生成相同的警告.

Calls to other static methods Frame.X do not generate the same warning.

示例-此代码行生成警告:

Example - this line of code generates the warning:

let msft =
    Frame.ReadCsv(Config.tsDir + "MSFT.csv",
                  hasHeaders=true,
                  inferTypes=true)

Intellisense会识别该方法并提供适当的提示，这些提示与http://bluemountaincapital.github.io/Deedle/reference/deedle-frame.html

Intellisense recognizes the method and provides the appropriate hints, which fit exactly with the signature in http://bluemountaincapital.github.io/Deedle/reference/deedle-frame.html

推荐答案

此代码段有效:

open Deedle
open System.IO

[<EntryPoint>]
let main argv =
    let csv = @"C:\tmp\testDeedle.csv"
    File.Exists csv |> printfn "%A"
    let df = Frame.ReadCsv(csv,hasHeaders=true,inferTypes=true)
    df.GetColumn("Date") |> printfn "%A"
    printfn "%A" argv
    0 // return an integer exit code

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