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42 lines
829 B
Markdown
42 lines
829 B
Markdown
# ArrayDataset
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Helper class that holds data as PHP `array` type. Implements the `Dataset` interface which is used heavily in other classes.
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### Constructors Parameters
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* $samples - (array) of samples
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* $labels - (array) of labels
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```
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use Phpml\Dataset\ArrayDataset;
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$dataset = new ArrayDataset([[1, 1], [2, 1], [3, 2], [4, 1]], ['a', 'a', 'b', 'b']);
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```
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### Samples and labels
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To get samples or labels you can use getters:
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```
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$dataset->getSamples();
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$dataset->getTargets();
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```
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### Remove columns
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You can remove columns by index numbers, for example:
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```
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use Phpml\Dataset\ArrayDataset;
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$dataset = new ArrayDataset(
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[[1,2,3,4], [2,3,4,5], [3,4,5,6], [4,5,6,7]],
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['a', 'a', 'b', 'b']
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);
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$dataset->removeColumns([0,2]);
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// now from each sample column 0 and 2 are removed
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// [[2,4], [3,5], [4,6], [5,7]]
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```
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