#以F#交互式(FSharpChart.fsx)加载程序包 [英] #load a package in F# interactive (FSharpChart.fsx)

问题描述

我是菜鸟，问这个新手问题，请原谅我.

我已经在本地目录中成功安装了FSharpChart

...
Added package 'MSDN.FSharpChart.dll.0.60.0' to folder 'C:\Users\Fagui\Documents\GitHub\Learning Fsharp\Expert in F\packages'
Added package 'MSDN.FSharpChart.dll.0.60.0' to 'packages.config'
Successfully installed 'MSDN.FSharpChart.dll 0.60.0' to Expert in F

现在，如果我愿意

#load "FSharpChart.fsx";;
  ^^^^^^^^^^^^^^^^^^^^^^^

stdin(4,1): error FS0078: Unable to find the file 'FSharpChart.fsx' in any of
 C:\Users\Fagui\AppData\Local\Temp

其他信息:

在此文件夹中，我看到一个nupkg文件和一个lib目录 在lib目录中，有一个dll和一个pdf文件， 但我看不到任何.fsx文件.

基本上，F#已将软件包安装在当前项目的活动文件夹中，而F#interactive在另一个文件夹中?有点奇怪?

我应该再次安装该软件包吗?或解决的方法是什么?

谢谢

更新: 我不知道为什么，但是显然当我安装FSharpChart软件包时，我只得到了dll，没有fsx文件 我设法将其加载

#I @"C:\Users\Fagui\Documents\GitHub\Learning Fsharp\Expert in F"
#r @"packages\MSDN.FSharpChart.dll.0.60\lib\MSDN.FSharpChart.dll";;

不幸的是，在F#交互式环境中键入脚本

open MSDN.FSharp.Charting
let rnd = System.Random()
let rand() = rnd.NextDouble()
let randomPoints = [for i in 0 .. 1000 -> 10.0 * rand(), 10.0 * rand()]
randomPoints |> FSharpChart.Point;;

不产生任何图表，只返回一个列表

val rnd : Random
val rand : unit -> float
val randomPoints : (float * float) list =
  [(9.765916457, 2.272289941); (0.8211438594, 1.625466995);
   ...
   (7.783786034, 7.572208311); (6.497914692, 3.66987128); ...]
val it : ChartTypes.PointChart

这可能是由于该库不再受支持，我应该使用像Thomas Petricek所示的较新的库.

所以，我确实设法安装了FSharp.Charting

let rnd = System.Random()
let rand() = rnd.NextDouble()
let randomPoints = [for i in 0 .. 1000 -> 10.0 * rand(), 10.0 * rand()]
randomPoints |> Chart.Point;;

它确实起作用

解决方案

有FSharpChart.fsx库的较新版本，称为有关该库的详细页面. /p>

通常，当您使用NuGet引用库时，需要指定相对引用:

// On Mac OSX use packages/FSharp.Charting.Gtk.0.90.13/FSharp.Charting.Gtk.fsx
#load "packages/FSharp.Charting.0.90.13/FSharp.Charting.fsx"

0.90.13是从NuGet获得的库的版本(您可能需要检查文件夹名称-#load中的路径引用是相对于脚本所在的位置的.)

Hi i'm a noob and asking this newbie question, please forgive me.

I've installed successfully FSharpChart in my local directory

...
Added package 'MSDN.FSharpChart.dll.0.60.0' to folder 'C:\Users\Fagui\Documents\GitHub\Learning Fsharp\Expert in F\packages'
Added package 'MSDN.FSharpChart.dll.0.60.0' to 'packages.config'
Successfully installed 'MSDN.FSharpChart.dll 0.60.0' to Expert in F

now, if i do

#load "FSharpChart.fsx";;
  ^^^^^^^^^^^^^^^^^^^^^^^

stdin(4,1): error FS0078: Unable to find the file 'FSharpChart.fsx' in any of
 C:\Users\Fagui\AppData\Local\Temp

additional info:

inside this folder, i see a nupkg file, and a lib directory Inside the lib directory, there is a dll, and a pdf file, but i don't see any .fsx file.

basically, F# has installed the package in the active folder for the current project, and F#interactive is in another folder ?? bit strange ?

should i install another time the package ? or what is the way around it ?

thanks

UPDATE: i don't know why, but apparently when i installed the FSharpChart package, I only got the dll, no fsx file i managed to load it doing

#I @"C:\Users\Fagui\Documents\GitHub\Learning Fsharp\Expert in F"
#r @"packages\MSDN.FSharpChart.dll.0.60\lib\MSDN.FSharpChart.dll";;

unfortunately, typing the script in F# interactive

open MSDN.FSharp.Charting
let rnd = System.Random()
let rand() = rnd.NextDouble()
let randomPoints = [for i in 0 .. 1000 -> 10.0 * rand(), 10.0 * rand()]
randomPoints |> FSharpChart.Point;;

doesn't yield any chart, but just returns a list

val rnd : Random
val rand : unit -> float
val randomPoints : (float * float) list =
  [(9.765916457, 2.272289941); (0.8211438594, 1.625466995);
   ...
   (7.783786034, 7.572208311); (6.497914692, 3.66987128); ...]
val it : ChartTypes.PointChart

this may be due to the fact that the library is not supported anymore, and that i should use a newer library like Thomas Petricek indicated.

So, i did manage to install FSharp.Charting instead

let rnd = System.Random()
let rand() = rnd.NextDouble()
let randomPoints = [for i in 0 .. 1000 -> 10.0 * rand(), 10.0 * rand()]
randomPoints |> Chart.Point;;

and it did work

解决方案

There is a newer version of the FSharpChart.fsx library which is called F# Charting, so first of all, I would recommend using this newer library instead (the API is quite similar, but F# Charting has a number of improvements).

The documentation for F# Charting also has a detailed page on referencing the library.

Typically, when you reference the library using NuGet, you'll need to specify relative reference:

// On Mac OSX use packages/FSharp.Charting.Gtk.0.90.13/FSharp.Charting.Gtk.fsx
#load "packages/FSharp.Charting.0.90.13/FSharp.Charting.fsx"

Where 0.90.13 is the version of the library that you got from NuGet (you may need to check the folder name - the path references in #load are relative to the place where your script lives).

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