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October 4, 2016 11:33
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DARU primer
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{ | |
"cells": [ | |
{ | |
"cell_type": "code", | |
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"false" | |
] | |
}, | |
"execution_count": 2, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"require \"daru\"" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 61, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan='4'>Daru::DataFrame(5x3)</th>\n", | |
" </tr>\n", | |
"\n", | |
" \n", | |
" <tr>\n", | |
" <th></th>\n", | |
" \n", | |
" <th>col0</th>\n", | |
" \n", | |
" <th>col1</th>\n", | |
" \n", | |
" <th>col2</th>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
" <tr>\n", | |
" <td>0</td>\n", | |
" \n", | |
" <td>1</td>\n", | |
" \n", | |
" <td>0.1</td>\n", | |
" \n", | |
" <td>11</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>1</td>\n", | |
" \n", | |
" <td>2</td>\n", | |
" \n", | |
" <td>0.2</td>\n", | |
" \n", | |
" <td>22</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>2</td>\n", | |
" \n", | |
" <td>3</td>\n", | |
" \n", | |
" <td>0.3</td>\n", | |
" \n", | |
" <td>33</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>3</td>\n", | |
" \n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>0.4</td>\n", | |
" \n", | |
" <td>44</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>5</td>\n", | |
" \n", | |
" <td>0.5</td>\n", | |
" \n", | |
" <td>55</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::DataFrame(5x3)>\n", | |
" col0 col1 col2\n", | |
" 0 1 0.1 11\n", | |
" 1 2 0.2 22\n", | |
" 2 3 0.3 33\n", | |
" 3 4 0.4 44\n", | |
" 4 5 0.5 55" | |
] | |
}, | |
"execution_count": 61, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"Daru::DataFrame.new(\n", | |
" \"col0\" => [1,2,3,4,5],\n", | |
" \"col1\" => [0.1,0.2,0.3,0.4,0.5],\n", | |
" \"col2\" => [11,22,33,44,55]\n", | |
" )" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 62, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan='4'>Daru::DataFrame(5x3)</th>\n", | |
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"\n", | |
" \n", | |
" <tr>\n", | |
" <th></th>\n", | |
" \n", | |
" <th>col0</th>\n", | |
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" <th>col1</th>\n", | |
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" <th>col2</th>\n", | |
" \n", | |
" </tr>\n", | |
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" <td>2</td>\n", | |
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" <td>0.2</td>\n", | |
" \n", | |
" <td>22</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>2</td>\n", | |
" \n", | |
" <td>3</td>\n", | |
" \n", | |
" <td>0.3</td>\n", | |
" \n", | |
" <td>33</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>3</td>\n", | |
" \n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>0.4</td>\n", | |
" \n", | |
" <td>44</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>5</td>\n", | |
" \n", | |
" <td>0.5</td>\n", | |
" \n", | |
" <td>55</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
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"text/plain": [ | |
"#<Daru::DataFrame(5x3)>\n", | |
" col0 col1 col2\n", | |
" 0 1 0.1 11\n", | |
" 1 2 0.2 22\n", | |
" 2 3 0.3 33\n", | |
" 3 4 0.4 44\n", | |
" 4 5 0.5 55" | |
] | |
}, | |
"execution_count": 62, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"df = Daru::DataFrame.rows(\n", | |
" [\n", | |
" [1, 0.1, 11],\n", | |
" [2, 0.2, 22],\n", | |
" [3, 0.3, 33],\n", | |
" [4, 0.4, 44],\n", | |
" [5, 0.5, 55]\n", | |
" ],\n", | |
" order: [\"col0\", \"col1\", \"col2\"]\n", | |
")" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 63, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan=\"2\">Daru::Vector(5)</th>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <th> </th>\n", | |
" <th>col0</th>\n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
" <tr>\n", | |
" <td>0</td>\n", | |
" <td>1</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>1</td>\n", | |
" <td>2</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>2</td>\n", | |
" <td>3</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>3</td>\n", | |
" <td>4</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>4</td>\n", | |
" <td>5</td>\n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::Vector(5)>\n", | |
" col0\n", | |
" 0 1\n", | |
" 1 2\n", | |
" 2 3\n", | |
" 3 4\n", | |
" 4 5" | |
] | |
}, | |
"execution_count": 63, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"df[\"col0\"]" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 64, | |
"metadata": { | |
"collapsed": false | |
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"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan='3'>Daru::DataFrame(5x2)</th>\n", | |
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"\n", | |
" \n", | |
" <tr>\n", | |
" <th></th>\n", | |
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" <td>2</td>\n", | |
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" <td>3</td>\n", | |
" \n", | |
" <td>33</td>\n", | |
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" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>3</td>\n", | |
" \n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>44</td>\n", | |
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" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>5</td>\n", | |
" \n", | |
" <td>55</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
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"text/plain": [ | |
"#<Daru::DataFrame(5x2)>\n", | |
" col0 col2\n", | |
" 0 1 11\n", | |
" 1 2 22\n", | |
" 2 3 33\n", | |
" 3 4 44\n", | |
" 4 5 55" | |
] | |
}, | |
"execution_count": 64, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"df[\"col0\", \"col2\"]" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 22, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan=\"2\">Daru::Vector(3)</th>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <th> </th>\n", | |
" <th>2</th>\n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
" <tr>\n", | |
" <td>col0</td>\n", | |
" <td>3</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>col1</td>\n", | |
" <td>0.3</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>col2</td>\n", | |
" <td>33</td>\n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::Vector(3)>\n", | |
" 2\n", | |
" col0 3\n", | |
" col1 0.3\n", | |
" col2 33" | |
] | |
}, | |
"execution_count": 22, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"df.row[2]" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 24, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan=\"2\">Daru::Vector(5)</th>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <th> </th>\n", | |
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" <td>1</td>\n", | |
" <td>24</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>2</td>\n", | |
" <td>36</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>3</td>\n", | |
" <td>48</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>4</td>\n", | |
" <td>60</td>\n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::Vector(5)>\n", | |
" col0\n", | |
" 0 12\n", | |
" 1 24\n", | |
" 2 36\n", | |
" 3 48\n", | |
" 4 60" | |
] | |
}, | |
"execution_count": 24, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"df[\"col0\"] + df[\"col2\"]" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 66, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan='3'>Daru::DataFrame(5x2)</th>\n", | |
" </tr>\n", | |
"\n", | |
" \n", | |
" <tr>\n", | |
" <th></th>\n", | |
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" <td>0</td>\n", | |
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" <td>0.1</td>\n", | |
" \n", | |
" <td>11</td>\n", | |
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" \n", | |
" <tr>\n", | |
" <td>1</td>\n", | |
" \n", | |
" <td>0.2</td>\n", | |
" \n", | |
" <td>22</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>2</td>\n", | |
" \n", | |
" <td>0.3</td>\n", | |
" \n", | |
" <td>33</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>3</td>\n", | |
" \n", | |
" <td>0.4</td>\n", | |
" \n", | |
" <td>44</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>0.5</td>\n", | |
" \n", | |
" <td>55</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::DataFrame(5x2)>\n", | |
" col1 col2\n", | |
" 0 0.1 11\n", | |
" 1 0.2 22\n", | |
" 2 0.3 33\n", | |
" 3 0.4 44\n", | |
" 4 0.5 55" | |
] | |
}, | |
"execution_count": 66, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"df[\"col1\"..\"col2\"]" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 67, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan=\"2\">Daru::Vector(4)</th>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <th> </th>\n", | |
" <th>2</th>\n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
" <tr>\n", | |
" <td>col0</td>\n", | |
" <td>3</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>col1</td>\n", | |
" <td>0.3</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>col2</td>\n", | |
" <td>33</td>\n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>col3</td>\n", | |
" <td>3</td>\n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::Vector(4)>\n", | |
" 2\n", | |
" col0 3\n", | |
" col1 0.3\n", | |
" col2 33\n", | |
" col3 3" | |
] | |
}, | |
"execution_count": 67, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"df.row[2]" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 68, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan='5'>Daru::DataFrame(5x4)</th>\n", | |
" </tr>\n", | |
"\n", | |
" \n", | |
" <tr>\n", | |
" <th></th>\n", | |
" \n", | |
" <th>col0</th>\n", | |
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" <th>col1</th>\n", | |
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" <th>col2</th>\n", | |
" \n", | |
" <th>col3</th>\n", | |
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"\n", | |
" \n", | |
" <tr>\n", | |
" <td>0</td>\n", | |
" \n", | |
" <td>1</td>\n", | |
" \n", | |
" <td>0.1</td>\n", | |
" \n", | |
" <td>11</td>\n", | |
" \n", | |
" <td>5</td>\n", | |
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" \n", | |
" <tr>\n", | |
" <td>1</td>\n", | |
" \n", | |
" <td>2</td>\n", | |
" \n", | |
" <td>0.2</td>\n", | |
" \n", | |
" <td>22</td>\n", | |
" \n", | |
" <td>4</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>2</td>\n", | |
" \n", | |
" <td>3</td>\n", | |
" \n", | |
" <td>0.3</td>\n", | |
" \n", | |
" <td>33</td>\n", | |
" \n", | |
" <td>3</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>3</td>\n", | |
" \n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>0.4</td>\n", | |
" \n", | |
" <td>44</td>\n", | |
" \n", | |
" <td>2</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>4</td>\n", | |
" \n", | |
" <td>5</td>\n", | |
" \n", | |
" <td>0.5</td>\n", | |
" \n", | |
" <td>55</td>\n", | |
" \n", | |
" <td>1</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::DataFrame(5x4)>\n", | |
" col0 col1 col2 col3\n", | |
" 0 1 0.1 11 5\n", | |
" 1 2 0.2 22 4\n", | |
" 2 3 0.3 33 3\n", | |
" 3 4 0.4 44 2\n", | |
" 4 5 0.5 55 1" | |
] | |
}, | |
"execution_count": 68, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
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"source": [ | |
"df[\"col3\"] = [5,4,3,2,1]\n", | |
"df" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
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" \n", | |
" <td>66</td>\n", | |
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" \n", | |
"\n", | |
" \n", | |
"</table>" | |
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"text/plain": [ | |
"#<Daru::DataFrame(6x4)>\n", | |
" col0 col1 col2 col3\n", | |
" 0 1 0.1 11 5\n", | |
" 1 2 0.2 22 4\n", | |
" 2 3 0.3 33 3\n", | |
" 3 4 0.4 44 2\n", | |
" 4 5 0.5 55 1\n", | |
" 5 6 0.6 66 0" | |
] | |
}, | |
"execution_count": 69, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
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"source": [ | |
"df.row[5] = [6, 0.6, 66, 0]\n", | |
"df" | |
] | |
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{ | |
"cell_type": "code", | |
"execution_count": 70, | |
"metadata": { | |
"collapsed": false | |
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{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
" <th colspan='5'>Daru::DataFrame(5x4)</th>\n", | |
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"\n", | |
" \n", | |
" <tr>\n", | |
" <th></th>\n", | |
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" <th>col0</th>\n", | |
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" <td>count</td>\n", | |
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" \n", | |
" <td>6</td>\n", | |
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" <td>6</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>mean</td>\n", | |
" \n", | |
" <td>3.5</td>\n", | |
" \n", | |
" <td>0.35000000000000003</td>\n", | |
" \n", | |
" <td>38.5</td>\n", | |
" \n", | |
" <td>2.5</td>\n", | |
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" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>std</td>\n", | |
" \n", | |
" <td>1.8708286933869707</td>\n", | |
" \n", | |
" <td>0.18708286933869706</td>\n", | |
" \n", | |
" <td>20.579115627256677</td>\n", | |
" \n", | |
" <td>1.8708286933869707</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
" <tr>\n", | |
" <td>min</td>\n", | |
" \n", | |
" <td>1</td>\n", | |
" \n", | |
" <td>0.1</td>\n", | |
" \n", | |
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" \n", | |
" <tr>\n", | |
" <td>max</td>\n", | |
" \n", | |
" <td>6</td>\n", | |
" \n", | |
" <td>0.6</td>\n", | |
" \n", | |
" <td>66</td>\n", | |
" \n", | |
" <td>5</td>\n", | |
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" \n", | |
"\n", | |
" \n", | |
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"text/plain": [ | |
"#<Daru::DataFrame(5x4)>\n", | |
" col0 col1 col2 col3\n", | |
" count 6 6 6 6\n", | |
" mean 3.5 0.35000000 38.5 2.5\n", | |
" std 1.87082869 0.18708286 20.5791156 1.87082869\n", | |
" min 1 0.1 11 0\n", | |
" max 6 0.6 66 5" | |
] | |
}, | |
"execution_count": 70, | |
"metadata": {}, | |
"output_type": "execute_result" | |
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"df.describe" | |
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"cell_type": "code", | |
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"<table>\n", | |
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" <th colspan=\"2\">Daru::Vector(4)</th>\n", | |
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"text/plain": [ | |
"#<Daru::Vector(4)>\n", | |
" mean\n", | |
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" col2 38.5\n", | |
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"text/plain": [ | |
"#<Daru::DataFrame(4x4)>\n", | |
" col0 col1 col2 col3\n", | |
" col0 1.0 1.0 1.0 -1.0\n", | |
" col1 1.0 1.0 1.00000000 -1.0\n", | |
" col2 1.0 1.00000000 1.00000000 -1.0\n", | |
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"text/plain": [ | |
"#<Daru::DataFrame(4x4)>\n", | |
" col0 col1 col2 col3\n", | |
" col0 3.5 0.35 38.5 -3.5\n", | |
" col1 0.35 0.03499999 3.85 -0.35\n", | |
" col2 38.5 3.85 423.5 -38.5\n", | |
" col3 -3.5 -0.35 -38.5 3.5" | |
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"text/plain": [ | |
"#<Daru::DataFrame(6x4)>\n", | |
" col0 col1 col2 col3\n", | |
" 0 1 0.1 11 5\n", | |
" 1 2 0.2 22 4\n", | |
" 2 3 0.3 33 3\n", | |
" 3 4 0.4 44 2\n", | |
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}, | |
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" \n", | |
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" <td>0.6</td>\n", | |
" \n", | |
" <td>66</td>\n", | |
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" <td>0</td>\n", | |
" \n", | |
" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::DataFrame(6x4)>\n", | |
" col0 col1 col2 col3\n", | |
" 0 1 0.1 11 5\n", | |
" 1 2 0.2 22 4\n", | |
" 2 3 0.3 33 3\n", | |
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] | |
}, | |
"execution_count": 76, | |
"metadata": {}, | |
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"source": [ | |
"df.each(:row) {|row| p row[\"col1\"] }" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 77, | |
"metadata": { | |
"collapsed": false | |
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{ | |
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"<table>\n", | |
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"text/plain": [ | |
"#<Daru::DataFrame(6x1)>\n", | |
" col2\n", | |
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" 3 44\n", | |
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}, | |
"execution_count": 77, | |
"metadata": {}, | |
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} | |
], | |
"source": [ | |
"df.filter {|col| col.mean > 10 }" | |
] | |
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{ | |
"cell_type": "code", | |
"execution_count": 78, | |
"metadata": { | |
"collapsed": false | |
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{ | |
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"<table>\n", | |
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"text/plain": [ | |
"#<Daru::DataFrame(3x4)>\n", | |
" col0 col1 col2 col3\n", | |
" 0 1 0.1 11 5\n", | |
" 4 5 0.5 55 1\n", | |
" 5 6 0.6 66 0" | |
] | |
}, | |
"execution_count": 78, | |
"metadata": {}, | |
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], | |
"source": [ | |
"df.filter(:row) {|row| row[\"col0\"]*row[\"col3\"] < 8 }" | |
] | |
}, | |
{ | |
"cell_type": "code", | |
"execution_count": 79, | |
"metadata": { | |
"collapsed": false | |
}, | |
"outputs": [ | |
{ | |
"data": { | |
"text/html": [ | |
"<table>\n", | |
" <tr>\n", | |
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" <td>3</td>\n", | |
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" <td>0.3</td>\n", | |
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" <td>33</td>\n", | |
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" <td>0.5</td>\n", | |
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" <td>55</td>\n", | |
" \n", | |
" <td>1</td>\n", | |
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" </tr>\n", | |
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" <tr>\n", | |
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" <td>0.6</td>\n", | |
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" <td>66</td>\n", | |
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" </tr>\n", | |
" \n", | |
"\n", | |
" \n", | |
"</table>" | |
], | |
"text/plain": [ | |
"#<Daru::DataFrame(6x4)>\n", | |
" col0 col1 col2 col3\n", | |
" 0 1 0.1 11 5\n", | |
" 1 2 0.2 22 4\n", | |
" 2 3 0.3 33 3\n", | |
" 3 4 0.4 44 2\n", | |
" 4 5 0.5 55 1\n", | |
" 5 6 0.6 66 0" | |
] | |
}, | |
"execution_count": 79, | |
"metadata": {}, | |
"output_type": "execute_result" | |
} | |
], | |
"source": [ | |
"df.sort([\"col3\", \"col1\"], ascending: [false, true])" | |
] | |
}, | |
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