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1 | <?php |
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2 | |||
3 | require __DIR__ . '/../src/MatLabPHP.php'; |
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4 | |||
5 | use MatLabPHP\MatLabPHP; |
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6 | |||
7 | class MatLabPHPTest extends \PHPUnit_Framework_TestCase |
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PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions.
You can fix this by adding a namespace to your class: namespace YourVendor;
class YourClass { }
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries. ![]() |
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8 | { |
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9 | /** |
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10 | * Asserts that a variable is of a Stringy instance. |
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11 | * |
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12 | * @param mixed $actual |
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13 | */ |
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14 | public function assertMatLabPHP($actual) |
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15 | { |
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16 | $this->assertInstanceOf('MatLabPHP\MatLabPHP', $actual); |
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17 | } |
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18 | |||
19 | public function testStringToVector() |
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20 | { |
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21 | $matLab = $this->getMatLabObject(); |
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22 | |||
23 | $result = $matLab->stringToVector("[3 1 2; 5 4 7; 6 9 7]"); |
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24 | $expected = array( |
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25 | 0 => array( |
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26 | 0 => '3', |
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27 | 1 => '1', |
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28 | 2 => '2' |
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29 | ), |
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30 | 1 => array( |
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31 | 0 => '5', |
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32 | 1 => '4', |
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33 | 2 => '7' |
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34 | ), |
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35 | 2 => array( |
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36 | 0 => '6', |
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37 | 1 => '9', |
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38 | 2 => '7' |
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39 | ) |
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40 | ); |
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41 | |||
42 | $this->assertEquals($result, $expected); |
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43 | } |
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44 | |||
45 | public function testEye() |
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46 | { |
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47 | $matLab = $this->getMatLabObject(); |
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48 | |||
49 | $result = $matLab->eye(4); |
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50 | $expected = array( |
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51 | 1 => array( |
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52 | '1' => '1', |
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53 | '2' => '0', |
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54 | '3' => '0', |
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55 | '4' => '0' |
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56 | ), |
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57 | 2 => array( |
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58 | '1' => '0', |
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59 | '2' => '1', |
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60 | '3' => '0', |
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61 | '4' => '0' |
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62 | ), |
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63 | 3 => array( |
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64 | '1' => '0', |
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65 | '2' => '0', |
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66 | '3' => '1', |
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67 | '4' => '0' |
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68 | ), |
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69 | 4 => array( |
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70 | '1' => '0', |
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71 | '2' => '0', |
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72 | '3' => '0', |
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73 | '4' => '1' |
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74 | ) |
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75 | ); |
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76 | $this->assertEquals($result, $expected); |
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77 | |||
78 | $result = $matLab->eye(2, 3); |
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79 | $expected = array( |
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80 | 1 => array( |
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81 | '1' => '1', |
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82 | '2' => '0', |
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83 | '3' => '0' |
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84 | ), |
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85 | 2 => array( |
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86 | '1' => '0', |
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87 | '2' => '1', |
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88 | '3' => '0' |
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89 | ) |
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90 | ); |
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91 | $this->assertEquals($result, $expected); |
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92 | } |
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93 | |||
94 | public function testZeros() |
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95 | { |
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96 | $matLab = $this->getMatLabObject(); |
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97 | |||
98 | $result = $matLab->zeros(2, 1); |
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99 | $expected = array( |
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100 | 1 => array( |
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101 | '1' => '0', |
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102 | ), |
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103 | 2 => array( |
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104 | '1' => '0', |
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105 | ) |
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106 | ); |
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107 | $this->assertEquals($result, $expected); |
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108 | |||
109 | $result = $matLab->zeros(2); |
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110 | $expected = array( |
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111 | 1 => array( |
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112 | '1' => '0', |
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113 | '2' => '0', |
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114 | ), |
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115 | 2 => array( |
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116 | '1' => '0', |
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117 | '2' => '0', |
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118 | ) |
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119 | ); |
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120 | $this->assertEquals($result, $expected); |
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121 | |||
122 | $result = $matLab->zeros(2, 3); |
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123 | $expected = array( |
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124 | 1 => array( |
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125 | '1' => '0', |
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126 | '2' => '0', |
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127 | '3' => '0' |
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128 | ), |
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129 | 2 => array( |
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130 | '1' => '0', |
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131 | '2' => '0', |
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132 | '3' => '0' |
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133 | ) |
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134 | ); |
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135 | $this->assertEquals($result, $expected); |
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136 | } |
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137 | |||
138 | public function testLength() |
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139 | { |
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140 | $matLab = $this->getMatLabObject(); |
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141 | |||
142 | $vector = array( |
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143 | '1' => '0', |
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144 | '2' => '4', |
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145 | '3' => '9', |
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146 | '4' => '10', |
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147 | '5' => '1', |
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148 | '6' => '2' |
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149 | ); |
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150 | |||
151 | $result = $matLab->length($vector); |
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152 | $this->assertEquals($result, 6); |
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153 | |||
154 | $matrix = array( |
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155 | 1 => array( |
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156 | '1' => '0', |
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157 | '2' => '0' |
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158 | ), |
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159 | 2 => array( |
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160 | '1' => '0', |
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161 | '2' => '0', |
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162 | '3' => '0', |
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163 | '4' => '8' |
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164 | ), |
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165 | 3 => array( |
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166 | '1' => '0', |
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167 | '2' => '0', |
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168 | '3' => '0' |
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169 | ), |
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170 | 4 => array( |
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171 | '1' => '0', |
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172 | '2' => '0', |
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173 | '3' => '9', |
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174 | '4' => '1' |
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175 | ) |
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176 | ); |
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177 | |||
178 | $result = $matLab->length($matrix); |
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179 | $this->assertEquals($result, 4); |
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180 | } |
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181 | |||
182 | public function testSum() |
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183 | { |
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184 | $matLab = $this->getMatLabObject(); |
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185 | |||
186 | $expected = array( |
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187 | 0 => array( |
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188 | 0 => 13 |
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189 | ) |
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190 | ); |
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191 | |||
192 | $result = $matLab->sum('5', '8'); |
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193 | $this->assertEquals($result, $expected); |
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194 | |||
195 | $matLab = new MatLabPHP(); |
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196 | $this->assertMatLabPHP($matLab); |
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197 | |||
198 | $expected = array( |
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199 | 0 => array( |
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200 | 0 => 9, |
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201 | 1 => 4, |
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202 | 2 => 6 |
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203 | ), |
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204 | 1 => array( |
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205 | 0 => 12, |
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206 | 1 => 7, |
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207 | 2 => 6 |
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208 | ), |
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209 | 2 => array( |
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210 | 0 => 15, |
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211 | 1 => 3, |
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212 | 2 => 7 |
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213 | ) |
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214 | ); |
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215 | |||
216 | $result = $matLab->sum( |
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217 | '[1 3 2; 4 2 5; 6 1 4]', |
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218 | '[8 1 4; 8 5 1; 9 2 3]' |
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219 | ); |
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220 | |||
221 | $this->assertEquals($result, $expected); |
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222 | } |
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223 | |||
224 | public function testPrice2Ret() |
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225 | { |
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226 | $matLab = $this->getMatLabObject(); |
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227 | |||
228 | $seriesPriceOne = array(10, 12, 13, 9, 11, 9); |
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229 | $result = $matLab->price2ret($seriesPriceOne); |
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230 | |||
231 | $expected = array( |
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232 | 10 => null, |
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233 | 12 => 0.18232155679395, |
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234 | 13 => 0.080042707673536, |
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235 | 9 => -0.20067069546215, |
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236 | 11 => 0.20067069546215 |
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237 | ); |
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238 | $this->assertEquals($result, $expected); |
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239 | } |
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240 | |||
241 | public function testMean() |
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242 | { |
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243 | $matLabPHP = $this->getMatLabObject(); |
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244 | |||
245 | $retFundoX = array(2, 1.5, -2.4, 1.5, 4, 1.2); |
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246 | $mediaRetX = $matLabPHP->mean($retFundoX); |
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247 | $this->assertEquals($mediaRetX, 1.3000000000); |
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248 | |||
249 | $mediaRetX = $matLabPHP->avg($retFundoX); |
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250 | $this->assertEquals($mediaRetX, 1.3000000000); |
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251 | |||
252 | $retFundoY = array(-1.2, 0.2, 1.3, 0, -2, 0.5); |
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253 | $mediaRetY = $matLabPHP->mean($retFundoY); |
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254 | $this->assertEquals($mediaRetY, -0.2000000000); |
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255 | |||
256 | $mediaRetY = $matLabPHP->avg($retFundoY); |
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257 | $this->assertEquals($mediaRetY, -0.2000000000); |
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258 | } |
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259 | |||
260 | public function testStd() |
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261 | { |
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262 | $matLabPHP = $this->getMatLabObject(); |
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263 | |||
264 | $retFundoX = array(2, 1.5, -2.4, 1.5, 4, 1.2); |
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265 | |||
266 | $desvPadX = $matLabPHP->std($retFundoX, true); |
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267 | $this->assertEquals($desvPadX, 2.0765355763); |
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268 | |||
269 | $desvPadX = $matLabPHP->stdev($retFundoX, true); |
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270 | $this->assertEquals($desvPadX, 2.0765355763); |
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271 | |||
272 | $retFundoY = array(-1.2, 0.2, 1.3, 0, -2, 0.5); |
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273 | |||
274 | $desvPadY = $matLabPHP->std($retFundoY, true); |
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275 | $this->assertEquals($desvPadY, 1.1983321743); |
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276 | |||
277 | $desvPadY = $matLabPHP->stdev($retFundoY, true); |
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278 | $this->assertEquals($desvPadY, 1.1983321743); |
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279 | } |
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280 | |||
281 | public function testVariance() |
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282 | { |
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283 | $matLabPHP = $this->getMatLabObject(); |
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284 | |||
285 | $retFundoX = array(2, 1.5, -2.4, 1.5, 4, 1.2); |
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286 | $result = $matLabPHP->variance($retFundoX, true); |
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287 | $this->assertEquals($result, 4.3120000000); |
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288 | |||
289 | $retFundoY = array(-1.2, 0.2, 1.3, 0, -2, 0.5); |
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290 | $result = $matLabPHP->variance($retFundoY, true); |
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291 | $this->assertEquals($result, 1.4360000000); |
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292 | } |
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293 | |||
294 | public function testCovariance() |
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295 | { |
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296 | $matLabPHP = $this->getMatLabObject(); |
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297 | |||
298 | $retFundoX = array(2, 1.5, -2.4, 1.5, 4, 1.2); |
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299 | $retFundoY = array(-1.2, 0.2, 1.3, 0, -2, 0.5); |
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300 | |||
301 | $result = $matLabPHP->covariance($retFundoX, $retFundoY); |
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302 | $this->assertEquals($result, -1.8433333333); |
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303 | |||
304 | $result = $matLabPHP->covar($retFundoX, $retFundoY); |
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305 | $this->assertEquals($result, -1.8433333333); |
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306 | } |
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307 | |||
308 | public function testCorrelation() |
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309 | { |
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310 | $matLabPHP = $this->getMatLabObject(); |
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311 | |||
312 | $retFundoX = array(2, 1.5, -2.4, 1.5, 4, 1.2); |
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313 | $retFundoY = array(-1.2, 0.2, 1.3, 0, -2, 0.5); |
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314 | |||
315 | $isSample = false; |
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316 | $result = $matLabPHP->correlation($retFundoX, $retFundoY, $isSample); |
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317 | $this->assertEquals($result, -0.88893197); |
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318 | |||
319 | $result = $matLabPHP->correl($retFundoX, $retFundoY, $isSample); |
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320 | $this->assertEquals($result, -0.88893197); |
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321 | |||
322 | $isSample = true; |
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323 | $result = $matLabPHP->correlation($retFundoX, $retFundoY, $isSample); |
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324 | $this->assertEquals($result, -0.74077664); |
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325 | |||
326 | $result = $matLabPHP->correl($retFundoX, $retFundoY, $isSample); |
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327 | $this->assertEquals($result, -0.74077664); |
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328 | } |
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329 | |||
330 | public function getMatLabObject() |
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331 | { |
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332 | $matLab = new MatLabPHP(); |
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333 | $this->assertMatLabPHP($matLab); |
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334 | |||
335 | return $matLab; |
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336 | } |
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337 | } |
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338 |
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.