1 | /**
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2 | * @license
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3 | * Copyright 2018 Google LLC. All Rights Reserved.
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | * =============================================================================
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16 | */
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17 | import { ENGINE } from '../engine';
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18 | import { Cumsum } from '../kernel_names';
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19 | import { convertToTensor } from '../tensor_util_env';
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20 | import { op } from './operation';
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21 | /**
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22 | * Computes the cumulative sum of a `tf.Tensor` along `axis`.
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23 | *
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24 | * ```js
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25 | * const x = tf.tensor([1, 2, 3, 4]);
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26 | * x.cumsum().print();
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27 | * ```
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28 | * ```js
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29 | * const x = tf.tensor([[1, 2], [3, 4]]);
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30 | * x.cumsum().print();
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31 | * ```
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32 | *
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33 | * @param x The input tensor to be summed.
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34 | * @param axis The axis along which to sum. Optional. Defaults to 0.
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35 | * @param exclusive Whether to perform exclusive cumulative sum. Optional.
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36 | * Defaults to false. If set to true then the sum of each tensor entry
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37 | * does not include its own value, but only the values previous to it
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38 | * along the specified axis.
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39 | * @param reverse Whether to sum in the opposite direction. Optional.
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40 | * Defaults to false.
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41 | *
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42 | * @doc {heading: 'Operations', subheading: 'Scan'}
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43 | */
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44 | function cumsum_(x, axis = 0, exclusive = false, reverse = false) {
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45 | const $x = convertToTensor(x, 'x', 'cumsum');
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46 | const inputs = { x: $x };
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47 | const attrs = { axis, exclusive, reverse };
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48 | return ENGINE.runKernel(Cumsum, inputs, attrs);
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49 | }
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50 | export const cumsum = op({ cumsum_ });
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51 | //# sourceMappingURL=cumsum.js.map |
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