Add __init__() function.

* make parameter ignore epochs

ignore epochs functionality add to prevent spikes at the beginning when fitness spikes and decreases after.
Discussed at https://github.com/ultralytics/yolov5/issues/5971

* Update train.py
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

* `pretriained=False` fix

Fix for https://github.com/ultralytics/yolov5/issues/5964

* CI speed improvement

* fix imgsz bug

* Update detect.py
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

* Fix tolist() to add the file for each Detection

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* Fix PEP8 requirement for 2 spaces before an inline comment

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* Cleanup
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* add nms and agnostic nms to export.py

* fix agnostic implies nms

* reorder args to group TF args

* PEP8 120 char
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

Replace 'training_result' with 'best_fitness' in strip_optimizer() to match key with ckpt from train.py

* fix .gitignore not tracking existing folders

fix .gitignore so that the files that are in the repository are actually being tracked.

Everything in the data/ folder is ignored, which also means the subdirectories are ignored. Fix so that the subdirectories and their contents are still tracked.

* Remove data/trainings
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* Find out a bug. When set batch_size = -1 to use the autobatch.

reproduce:

* Fix type conflict
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

This reverts commit 360eec69.

* Update notebook

* Update notebook

* update string

* update string

* Updates

* Updates

* Updates

* check both ipython and psutil

* remove sample_data if is_colab

* cleanup

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* Add ONNX inference providers

Fix for https://github.com/ultralytics/yolov5/issues/5916

* Update common.py

* Add *.engine (TensorRT extensions) to .gitignore

* Update .dockerignore
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

debugged for missigned Detections attributes

* Export multiple models in series

Export multiple models in series by adding additional `*.pt` files to the `--weights` argument, i.e.:

```bash
python export.py --include tflite --weights yolov5n.pt  # export 1 model
python export.py --include tflite --weights yolov5n.pt yolov5s.pt yolov5m.pt yolov5l.pt yolov5x.pt  # export 5 models
```

* Update export.py

* Update README.md

* Update AutoShape()

* autodownload ONNX

* Cleanup

* Finish updates

* Add Usage

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* Update

* fix device

* Update hubconf.py

* Update common.py

* smart param selection

* autodownload all formats

* autopad only pytorch models

* new_shape edits

* stride tensor fix

* Cleanup

shallow copy modify originals

* Update val.py

Add an option to choose number of workers if not called by train.py

* Update comment

* 120 char line width
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* Update val.py

Solving Non-ASCII character '\xf0' error during runtime

* Update val.py
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Video errors may occur.

When OpenCV retrieving image fail, original code would modify source images **inplace**, which may result in plotting bounding boxes on a black image. That is, before inference, source image `im0s[i]` is OK, but after inference before `Process predictions`,  `im0s[i]` may have been changed.

* `try: except (..., wandb.errors.UsageError)`

* bug fix

* feat: change file suffix in pythonic way

* fix: enforce binding addresses order

* fix: enforce binding addresses order

Bumps [actions/cache](https://github.com/actions/cache) from 2.1.6 to 2.1.7.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.6...v2.1.7)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-patch
...
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* Refactor new `model.warmup()` method

* Add half

* Remove NCOLS from tqdm

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* tensorflow or tflite exclusively as interpreter

As per bug report https://github.com/ultralytics/yolov5/issues/5709 I think there should be only one attempt to assign interpreter, and it appears tflite is only ever needed for the case of edgetpu model.

* Scope imports

* Nested definition line fix

* Update common.py
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>

* update

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* reformat

* Single-line argparser argument

* Update README.md

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* Update README.md

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* fix path error in export.py

* Update export.py

updated!

* Update export.py

oops forget something

* fix the path error in export.py

* Update export.py
Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>