# tff.analytics.histogram_processing.threshold_histogram

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| [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/tensorflow/federated/blob/v0.87.0 Version 2.0, January 2004 Licensed under the Apache License, Version 2.0 (the) |

Thresholds a histogram by values.

    tff.analytics.histogram_processing.threshold_histogram(
        histogram_keys, histogram_values, threshold
    )

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| ## Args ||
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| `histogram_keys` | A rank-1 Tensor containing a list of strings representing the keys in the input histogram. |
| `histogram_values` | A rank-1 Tensor containing a list of floats representing the values for each key in `histogram_keys`. |
| `threshold` | A float tensor to threshold the input histogram. The (key, value) pairs where value is less than `threshold` are filtered out in the returned histogram. |

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| ## Returns ||
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| A tuple (histogram_keys_thresholded, histogram_values_thresholded) of the histogram after being thresholded. ||

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