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ChrisMarinos#77 Fixed inconsistent line endings
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,94 +1,94 @@ | ||
| namespace FSharpKoans | ||
| open FSharpKoans.Core | ||
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| //--------------------------------------------------------------- | ||
| // Getting Started with F# Type Providers | ||
| // | ||
| // F# Type Providers make things like processing data from a | ||
| // variety of providers easily done in a typed fashion. | ||
| // | ||
| // Type Providers Available | ||
| namespace FSharpKoans | ||
| open FSharpKoans.Core | ||
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| //--------------------------------------------------------------- | ||
| // Getting Started with F# Type Providers | ||
| // | ||
| // F# Type Providers make things like processing data from a | ||
| // variety of providers easily done in a typed fashion. | ||
| // | ||
| // Type Providers Available | ||
| // * DbmlFile - http://msdn.microsoft.com/en-us/library/hh362326.aspx | ||
| // * EdmxFile - http://msdn.microsoft.com/en-us/library/hh362313.aspx | ||
| // * ODataService - http://msdn.microsoft.com/en-us/library/hh362325.aspx | ||
| // * SqlDataConnection - http://msdn.microsoft.com/en-us/library/hh362320.aspx | ||
| // * SqlEntityConnection - http://msdn.microsoft.com/en-us/library/hh362322.aspx | ||
| // * WsdlService - http://msdn.microsoft.com/en-us/library/hh362328.aspx | ||
| // * CSV - http://fsharp.github.io/FSharp.Data/library/CsvProvider.html | ||
| // * HTML - http://fsharp.github.io/FSharp.Data/library/HtmlProvider.html | ||
| // * JSON - http://fsharp.github.io/FSharp.Data/library/JsonProvider.html | ||
| // * XML - http://fsharp.github.io/FSharp.Data/library/XmlProvider.html | ||
| // * WorldBank - http://fsharp.github.io/FSharp.Data/library/WorldBank.html | ||
| // | ||
| // For a more thorough introduction to TypeProviders | ||
| // https://docs.microsoft.com/en-us/dotnet/fsharp/tutorials/type-providers/ | ||
| //--------------------------------------------------------------- | ||
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| [<Koan(Sort = 23)>] | ||
| module ``about type providers`` = | ||
| open FSharp.Data | ||
| open System.IO | ||
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| type Simple = CsvProvider<"data/Stocks.csv"> | ||
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| let getCsvContent = | ||
| use file = File.OpenRead("data/Stocks.csv") | ||
| Simple.Load(file).Rows | ||
| |> Seq.toList // this is kind of a cheat to get around the fact that the stream needs to be closed | ||
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| [<Koan>] | ||
| let CountingLinesInACSV() = | ||
| // you can count items with a sequence operation over the data | ||
| let countOfItems = | ||
| getCsvContent | ||
| |> Seq.length | ||
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| AssertEquality countOfItems __ // fix this | ||
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| [<Koan>] | ||
| let GetCsvContentAndPerformAProjection() = | ||
| // try transformations like projections in a typed fashion with a simple predicate | ||
| // typed to the column name | ||
| let avgOpen = | ||
| getCsvContent | ||
| // What column makes this work? | ||
| |> Seq.averageBy ( fun x -> x.Open ) // write this projection | ||
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| AssertEquality 32.185217391304347826086956522m avgOpen | ||
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| [<Koan>] | ||
| let RenameAColumnAndSeeACompileTimeBreak() = | ||
| // one of the benefits of type providers is that when the source changes, the compiler will tell you! | ||
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| let avgAdjClose = | ||
| getCsvContent | ||
| // Rename the CSV column "Adj Close" to "AdjustedClose" in data/Stocks.csv | ||
| // compile the code to see the code on the next line break | ||
| |> Seq.averageBy (fun x -> x.``Adj Close`` ) | ||
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| AssertEquality 32.175217391304347826086956522m avgAdjClose | ||
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| type NugetStats = HtmlProvider<"https://www.nuget.org/packages/FSharp.Data"> | ||
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| // helper function to analyze version numbers from Nuget | ||
| let getMinorVersion (v:string) = | ||
| System.Text.RegularExpressions.Regex(@"\d.\d").Match(v).Value | ||
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| let getNugetStats = | ||
| NugetStats().Tables.``Version History``.Rows | ||
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| [<Koan>] | ||
| let TypeProvidersExistForWebRequestsAsWell() = | ||
| // group by minor version and calculate download count | ||
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| let stats = | ||
| getNugetStats | ||
| |> Seq.groupBy (fun r -> | ||
| getMinorVersion r.Version) | ||
| |> Seq.map (fun (k, xs) -> | ||
| k, xs |> Seq.sumBy (fun x -> x.Downloads)) | ||
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| // * WsdlService - http://msdn.microsoft.com/en-us/library/hh362328.aspx | ||
| // * CSV - http://fsharp.github.io/FSharp.Data/library/CsvProvider.html | ||
| // * HTML - http://fsharp.github.io/FSharp.Data/library/HtmlProvider.html | ||
| // * JSON - http://fsharp.github.io/FSharp.Data/library/JsonProvider.html | ||
| // * XML - http://fsharp.github.io/FSharp.Data/library/XmlProvider.html | ||
| // * WorldBank - http://fsharp.github.io/FSharp.Data/library/WorldBank.html | ||
| // | ||
| // For a more thorough introduction to TypeProviders | ||
| // https://docs.microsoft.com/en-us/dotnet/fsharp/tutorials/type-providers/ | ||
| //--------------------------------------------------------------- | ||
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| [<Koan(Sort = 23)>] | ||
| module ``about type providers`` = | ||
| open FSharp.Data | ||
| open System.IO | ||
|
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||
| type Simple = CsvProvider<"data/Stocks.csv"> | ||
|
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||
| let getCsvContent = | ||
| use file = File.OpenRead("data/Stocks.csv") | ||
| Simple.Load(file).Rows | ||
| |> Seq.toList // this is kind of a cheat to get around the fact that the stream needs to be closed | ||
|
|
||
| [<Koan>] | ||
| let CountingLinesInACSV() = | ||
| // you can count items with a sequence operation over the data | ||
| let countOfItems = | ||
| getCsvContent | ||
| |> Seq.length | ||
|
|
||
| AssertEquality countOfItems __ // fix this | ||
|
|
||
|
|
||
| [<Koan>] | ||
| let GetCsvContentAndPerformAProjection() = | ||
| // try transformations like projections in a typed fashion with a simple predicate | ||
| // typed to the column name | ||
| let avgOpen = | ||
| getCsvContent | ||
| // What column makes this work? | ||
| |> Seq.averageBy ( fun x -> x.Open ) // write this projection | ||
|
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||
| AssertEquality 32.185217391304347826086956522m avgOpen | ||
|
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||
| [<Koan>] | ||
| let RenameAColumnAndSeeACompileTimeBreak() = | ||
| // one of the benefits of type providers is that when the source changes, the compiler will tell you! | ||
|
|
||
| let avgAdjClose = | ||
| getCsvContent | ||
| // Rename the CSV column "Adj Close" to "AdjustedClose" in data/Stocks.csv | ||
| // compile the code to see the code on the next line break | ||
| |> Seq.averageBy (fun x -> x.``Adj Close`` ) | ||
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| AssertEquality 32.175217391304347826086956522m avgAdjClose | ||
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| type NugetStats = HtmlProvider<"https://www.nuget.org/packages/FSharp.Data"> | ||
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| // helper function to analyze version numbers from Nuget | ||
| let getMinorVersion (v:string) = | ||
| System.Text.RegularExpressions.Regex(@"\d.\d").Match(v).Value | ||
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| let getNugetStats = | ||
| NugetStats().Tables.``Version History``.Rows | ||
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| [<Koan>] | ||
| let TypeProvidersExistForWebRequestsAsWell() = | ||
| // group by minor version and calculate download count | ||
|
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| let stats = | ||
| getNugetStats | ||
| |> Seq.groupBy (fun r -> | ||
| getMinorVersion r.Version) | ||
| |> Seq.map (fun (k, xs) -> | ||
| k, xs |> Seq.sumBy (fun x -> x.Downloads)) | ||
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| AssertEquality __ __ |