first commit

.editorconfig

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+# editorconfig.org
+root = true
+
+[*]
+indent_style = space
+end_of_line = lf
+indent_size = 2
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{html,twig,md}]
+indent_size = 2
+
+[*.php]
+charset = utf-8
+indent_style = tab
+indent_size = 4
+
+[*.md]
+trim_trailing_whitespace = false

.github/workflows/macd.yml

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+name: Macd
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: php-actions/composer@v1
+    - name: run tests
+      run: vendor/bin/phpunit tests/* --testdox

.gitignore

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+vendor

README.md

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+# Moving Average Convergence/Divergence
+
+Calculate the MACD of giving values.
+
+![Ema](https://github.com/romulodl/macd/workflows/Macd/badge.svg)
+
+## Instalation
+
+```
+composer require romulodl/macd
+```
+
+or add `romulodl/macd` to your `composer.json`. Please check the latest version in releases.
+
+## Usage
+
+```php
+$macd = new Romulodl\Macd();
+$macd->calculate(array $values, array $previous_values = [], int $short_period = 12, int $long_period = 26);
+//returns a float value
+```
+
+For example:
+```php
+$macd = new Romulodl\Macd();
+$macd->calculate([10, 12, 14, 20, 14, 10, 11]);
+```
+
+#### What is `$previous_values` for?
+
+The EMA calculation (used by the MACD) is based on the previous round of calculation. So the n round depends on n - 1 results.
+Then what is n - 1 for the first calculation? If `$previous_values` is not available, it uses a simple moving average
+for it. With `$previous_values` set, it will start the calculation of the EMA before and the result will be more
+accurate (at least closest to what Trading view shows.)
+
+It is recommended that you use the same ammount of `$values` and `$previous_values` for more accurate results. FOr example, send the previous 26 values when calculating a default MACD(12, 26). 
+
+
+## Why did you do this?
+
+The PECL Trading extension is crap and not everyone wants to install it.
+I am building a trading bot and building more complex trading indicators that uses the MACD as a basic step.

composer.json

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+{
+  "name": "romulodl/macd",
+  "description": "MACD without the PECL trader extension",
+  "license": "Apache-2.0",
+  "require-dev": {
+    "phpunit/phpunit": "^8.5"
+  },
+  "authors": [
+    {
+      "name": "Romulo De Lazzari",
+      "email": "romulodelazzari@gmail.com"
+    }
+  ],
+  "require": {
+    "romulodl/ema": "^1.3"
+  },
+  "autoload": {
+    "psr-4": {
+      "Romulodl\\": "src/"
+    }
+  }
+}