Merge 'main' in

.editorconfig

@@ -3,6 +3,7 @@ charset = utf-8
 indent_style = space
 indent_size = 2
 trim_trailing_whitespace = true
+insert_final_newline = true
 
 [*.md]
 max_line_length = 150
@@ -15,7 +16,9 @@ max_line_length = 150
 csharp_indent_block_contents = true
 
 # IDE0161 Convert to file-scoped namespace
-csharp_style_namespace_declarations= file_scoped:suggestion
+csharp_style_namespace_declarations = file_scoped:suggestion
+csharp_using_directive_placement = outside_namespace:warning
+dotnet_style_namespace_match_folder = false:none
 
 # CA1051: Do not declare visible instance fields
 dotnet_diagnostic.CA1051.severity = silent
@@ -25,7 +28,7 @@ dotnet_diagnostic.CA1303.severity = none
 
 # CA1720: Identifier contains type name
 dotnet_diagnostic.CA1720.severity = silent
-dotnet_diagnostic.IDE0090.severity= suggestion
+dotnet_diagnostic.IDE0090.severity = suggestion
 dotnet_diagnostic.SA1413.severity = silent
 dotnet_diagnostic.SA1200.severity = silent
 
@@ -49,7 +52,6 @@ dotnet_diagnostic.SA1117.severity = none
 
 # SA1118: Parameter should not span multiple lines
 dotnet_diagnostic.SA1118.severity = silent
-csharp_using_directive_placement  = outside_namespace:warning
 
 # SA1202: Elements should be ordered by access
 dotnet_diagnostic.SA1202.severity = silent
@@ -79,15 +81,15 @@ dotnet_diagnostic.SA1602.severity = silent
 dotnet_diagnostic.SA1633.severity = none
 
 # Misc IDE
-dotnet_diagnostic.IDE0055.severity=suggestion
-dotnet_diagnostic.IDE0059.severity=suggestion
-dotnet_diagnostic.IDE0060.severity=suggestion
-dotnet_diagnostic.IDE0062.severity=suggestion
-dotnet_diagnostic.IDE0063.severity=suggestion
-dotnet_diagnostic.IDE0065.severity=suggestion
-dotnet_diagnostic.IDE0066.severity=suggestion
-dotnet_diagnostic.IDE0071.severity=suggestion
-dotnet_diagnostic.IDE0047.severity=suggestion
+dotnet_diagnostic.IDE0055.severity = suggestion
+dotnet_diagnostic.IDE0059.severity = suggestion
+dotnet_diagnostic.IDE0060.severity = suggestion
+dotnet_diagnostic.IDE0062.severity = suggestion
+dotnet_diagnostic.IDE0063.severity = suggestion
+dotnet_diagnostic.IDE0065.severity = suggestion
+dotnet_diagnostic.IDE0066.severity = suggestion
+dotnet_diagnostic.IDE0071.severity = suggestion
+dotnet_diagnostic.IDE0047.severity = suggestion
 csharp_indent_labels = no_change
 csharp_prefer_simple_using_statement = true:suggestion
 csharp_prefer_braces = true:suggestion
@@ -137,6 +139,8 @@ csharp_style_prefer_primary_constructors = true:suggestion
 
 # IDE0058: Expression value is never used
 dotnet_diagnostic.IDE0058.severity = none
+dotnet_diagnostic.IDE0077.severity = warning
+dotnet_diagnostic.IDE0100.severity = suggestion
 
 [*.{cs,vb}]
 tab_width = 4
@@ -216,6 +220,5 @@ dotnet_style_qualification_for_field = false:silent
 dotnet_style_qualification_for_property = false:silent
 dotnet_style_qualification_for_method = false:silent
 dotnet_style_qualification_for_event = false:silent
-dotnet_style_namespace_match_folder= false:silent
 dotnet_style_allow_multiple_blank_lines_experimental = false:suggestion
 dotnet_style_allow_statement_immediately_after_block_experimental = false:suggestion

.github/workflows/build-indicators.yml

@@ -62,7 +62,7 @@ jobs:
           --logger trx
           --results-directory ./test-other
 
-      - name: Update tests summary
+      - name: Post tests summary
         uses: bibipkins/[email protected]
         if: ${{ github.event_name == 'pull_request' && (success() || (failure() && (steps.test-library.conclusion == 'failure' || steps.test-other.conclusion == 'failure'))) }}
         with:
@@ -72,3 +72,11 @@ jobs:
           coverage-path: ./test-indicators/**/coverage.cobertura.xml
           coverage-type: cobertura
           coverage-threshold: 95
+
+      - name: Post coverage to Codacy
+        uses: codacy/codacy-coverage-reporter-action@v1
+        with:
+          project-token: ${{ secrets.CODACY_PROJECT_TOKEN }}
+          coverage-reports: ./test-indicators/**/coverage.cobertura.xml
+          # or a comma-separated list for multiple reports
+          # coverage-reports: <PATH_TO_REPORT>, <PATH_TO_REPORT>

.github/workflows/deploy-docs.yml

@@ -3,7 +3,7 @@ name: Deploy website
 on: [workflow_dispatch]
 
 concurrency:
-  group: cloudflare-pages
+  group: docs-website
 
 env:
   JEKYLL_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     environment:
-      name: cloudflare-pages
+      name: docs-website
 
     steps:
       - name: Checkout source

.github/workflows/semantic-pr-linter.yml

@@ -12,7 +12,7 @@ permissions:
 
 jobs:
   main:
-    name: Validate PR title
+    name: validate PR title
     runs-on: ubuntu-latest
     steps:
       - uses: amannn/action-semantic-pull-request@v5
@@ -52,12 +52,12 @@ jobs:
 
             It looks like your proposed **_Pull request title_** needs to be adjusted.
 
-            >🚩 **ERROR:** ${{ steps.lint_pr_title.outputs.error_message }}
+            >🚩 **Error** » ${{ steps.lint_pr_title.outputs.error_message }}
 
             #### Pull request title naming convention
 
             Our PR title name taxonomy is `type: Subject`, where **type** is typically
-            *feat*, *fix*, or *chore* and **subject** is a noun that starts with a capitalized letter.
+            *feat*, *fix*, or *chore*, and **subject** is a phrase (proper noun) that starts with a capitalized letter.
             The *chore* type usually has a subject that starts with an action verb like *Add* or *Update*.
             Examples: `feat: Admin portal login`, `fix: Divide by zero bug in SMA`, and `chore: Update user docs`.
             See the [Conventional Commits specification](https://www.conventionalcommits.org) for more information.

docs/GemFile.lock

@@ -18,10 +18,10 @@ GEM
       minitest (>= 5.1)
       mutex_m
       tzinfo (~> 2.0)
-    addressable (2.8.5)
+    addressable (2.8.6)
       public_suffix (>= 2.0.2, < 6.0)
     base64 (0.2.0)
-    bigdecimal (3.1.4)
+    bigdecimal (3.1.5)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -41,7 +41,7 @@ GEM
     ethon (0.16.0)
       ffi (>= 1.15.0)
     execjs (2.9.1)
-    faraday (2.7.11)
+    faraday (2.8.1)
       base64
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
@@ -227,7 +227,7 @@ GEM
       gemoji (~> 3.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0, < 5.0)
-    json (2.6.3)
+    json (2.7.1)
     json-minify (0.0.3)
       json (> 0)
     kramdown (2.3.2)
@@ -245,9 +245,9 @@ GEM
       jekyll-seo-tag (~> 2.1)
     minitest (5.20.0)
     mutex_m (0.2.0)
-    nokogiri (1.15.4-x64-mingw-ucrt)
+    nokogiri (1.15.5-x64-mingw-ucrt)
       racc (~> 1.4)
-    nokogiri (1.15.4-x86_64-linux)
+    nokogiri (1.15.5-x86_64-linux)
       racc (~> 1.4)
     octokit (4.25.1)
       faraday (>= 1, < 3)
@@ -277,16 +277,16 @@ GEM
       unf (~> 0.1.4)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
-    typhoeus (1.4.0)
+    typhoeus (1.4.1)
       ethon (>= 0.9.0)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
     unf (0.1.4)
       unf_ext
-    unf_ext (0.0.9)
-    unf_ext (0.0.9-x64-mingw-ucrt)
+    unf_ext (0.0.9.1)
+    unf_ext (0.0.9.1-x64-mingw-ucrt)
     unicode-display_width (1.8.0)
     wdm (0.1.1)
     webrick (1.8.1)

src/GlobalSuppressions.cs

@@ -1,8 +1,3 @@
-// This file is used by Code Analysis to maintain SuppressMessage
-// attributes that are applied to this project.
-// Project-level suppressions either have no target or are given
-// a specific target and scoped to a namespace, type, member, etc.
-
 using System.Diagnostics.CodeAnalysis;
 
 [assembly: SuppressMessage(

src/Indicators.csproj

@@ -36,7 +36,6 @@
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <PackageReleaseNotes>https://github.com/DaveSkender/Stock.Indicators/releases</PackageReleaseNotes>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
-    <PackageLicenseFile></PackageLicenseFile>
     <PackageIcon>icon.png</PackageIcon>
 
     <IncludeSymbols>true</IncludeSymbols>
@@ -60,19 +59,15 @@
   <ItemGroup>
     <None Include="..\README.md">
       <Pack>True</Pack>
-      <PackagePath></PackagePath>
     </None>
     <None Include="..\LICENSE">
       <Pack>True</Pack>
-      <PackagePath></PackagePath>
     </None>
     <None Include="..\NOTICE">
       <Pack>True</Pack>
-      <PackagePath></PackagePath>
     </None>
     <None Include="icon.png">
       <Pack>True</Pack>
-      <PackagePath></PackagePath>
     </None>
   </ItemGroup>
 

src/_common/Enums.cs

@@ -72,4 +72,4 @@ public enum SyncType
     AppendOnly,
     RemoveOnly,
     FullMatch
-}
+}

src/_common/Math/NullMath.cs

@@ -28,17 +28,15 @@ public static decimal Round(this decimal value, int digits)
         => Math.Round(value, digits);
 
     public static double Null2NaN(this double? value)
-        => (value is null)
-        ? double.NaN
-        : (double)value;
+        => value ?? double.NaN;
 
     public static double? NaN2Null(this double? value)
-        => (value is double and double.NaN)
+        => (value is not null and double.NaN)
         ? null
         : value;
 
     public static double? NaN2Null(this double value)
-        => (value is double and double.NaN)
+        => double.IsNaN(value)
         ? null
         : value;
 }

src/_common/Math/Numerix.cs

@@ -72,20 +72,18 @@ public static double Slope(double[] x, double[] y)
 
         // least squares method
         double sumSqX = 0;
-        double sumSqY = 0;
-        double sumSqXY = 0;
+        double sumSqXy = 0;
 
         for (int i = 0; i < length; i++)
         {
             double devX = x[i] - avgX;
             double devY = y[i] - avgY;
 
             sumSqX += devX * devX;
-            sumSqY += devY * devY;
-            sumSqXY += devX * devY;
+            sumSqXy += devX * devY;
         }
 
-        double slope = sumSqXY / sumSqX;
+        double slope = sumSqXy / sumSqX;
 
         return slope;
     }

src/_common/Quotes/Quote.Aggregates.cs

@@ -45,12 +45,6 @@ public static IEnumerable<Quote> Aggregate<TQuote>(
         TimeSpan timeSpan)
         where TQuote : IQuote
     {
-        // handle no quotes scenario
-        if (quotes == null || !quotes.Any())
-        {
-            return new List<Quote>();
-        }
-
         if (timeSpan <= TimeSpan.Zero)
         {
             throw new ArgumentOutOfRangeException(nameof(timeSpan), timeSpan,

src/_common/Quotes/Quote.Exceptions.cs

@@ -1,6 +1,3 @@
-using System.Diagnostics.CodeAnalysis;
-using System.Runtime.Serialization;
-
 namespace Skender.Stock.Indicators;
 
 public class InvalidQuotesException : ArgumentOutOfRangeException

src/_common/Quotes/Quote.Validation.cs

@@ -17,10 +17,8 @@ public static IEnumerable<TQuote> Validate<TQuote>(
 
         // check for duplicates
         DateTime lastDate = DateTime.MinValue;
-        for (int i = 0; i < quotesList.Count; i++)
+        foreach (var q in quotesList)
         {
-            TQuote q = quotesList[i];
-
             if (lastDate == q.Date)
             {
                 throw new InvalidQuotesException(

src/_common/Results/Result.Utilities.cs

@@ -18,7 +18,7 @@ public static IEnumerable<TResult> Condense<TResult>(
 
         resultsList
             .RemoveAll(match:
-                x => x.Value is null or (double and double.NaN));
+                x => x.Value is null or (not null and double.NaN));
 
         return resultsList.ToSortedList();
     }
@@ -45,7 +45,7 @@ public static IEnumerable<TResult> Condense<TResult>(
 
         for (int i = first; i < reList.Count; i++)
         {
-            IReusableResult? r = reList[i];
+            IReusableResult r = reList[i];
             prices.Add(new(r.Date, r.Value.Null2NaN()));
         }
 

src/_common/Results/info.xml

@@ -21,7 +21,7 @@
     <typeparam name="TResult">Any reusable result type.</typeparam>
     <param name="reusable">Indicator results to evaluate.</param>
     <returns>Collection of tuple time series of
-      results with specified handline of nulls, without pruning.</returns>
+      results with specified handling of nulls, without pruning.</returns>
   </type>
   <type name="Prune">
     <summary> Removes the recommended quantity of results from the beginning of the results list

src/a-d/Dpo/Dpo.Api.cs

@@ -27,4 +27,4 @@ public static IEnumerable<DpoResult> GetDpo(
         int lookbackPeriods) => priceTuples
             .ToSortedList()
             .CalcDpo(lookbackPeriods);
-}
+}

src/e-k/Epma/Epma.Api.cs

@@ -27,4 +27,4 @@ public static IEnumerable<EpmaResult> GetEpma(
         int lookbackPeriods) => priceTuples
             .ToSortedList()
             .CalcEpma(lookbackPeriods);
-}
+}

src/e-k/Hma/Hma.Api.cs

@@ -27,4 +27,4 @@ public static IEnumerable<HmaResult> GetHma(
         int lookbackPeriods) => priceTuples
             .ToSortedList()
             .CalcHma(lookbackPeriods);
-}
+}

src/m-r/ParabolicSar/ParabolicSar.Series.cs

@@ -35,7 +35,7 @@ internal static List<ParabolicSarResult> CalcParabolicSar(
         // roll through quotes
         for (int i = 0; i < length; i++)
         {
-            QuoteD? q = qdList[i];
+            QuoteD q = qdList[i];
 
             ParabolicSarResult r = new(q.Date);
             results.Add(r);

src/m-r/PivotPoints/PivotPoints.Series.cs

@@ -196,7 +196,7 @@ internal static TPivotPoint GetPivotPointWoodie<TPivotPoint>(
     }
 
     // pivot type lookup
-    internal static TPivotPoint? GetPivotPoint<TPivotPoint>(
+    internal static TPivotPoint GetPivotPoint<TPivotPoint>(
         PivotPointType pointType, decimal open, decimal high, decimal low, decimal close)
         where TPivotPoint : IPivotPoint, new()
         => pointType switch