ExistingExperiment
ExistingExperiment¶
Existing Experiment allows you to report information to an experiment that already exists on comet.ml and is not currently running. This is useful when your training and testing happen on different scripts.
For example:
train.py:
exp = Experiment(api_key="my-key")
score = train_model()
exp.log_metric("train accuracy", score)
Now obtain the experiment key from comet.ml. If it's not visible
on your experiment table you can click Customize and add it as a
column.
test.py:
exp = ExistingExperiment(api_key="my-key",
previous_experiment="your experiment key from comet.ml")
score = test_model()
exp.log_metric("test accuracy", score)
Alternatively, you can pass the api_key via an environment
variable named COMET_API_KEY and the previous experiment id via
an environment variable named COMET_EXPERIMENT_KEY and omit them
from the ExistingExperiment constructor:
exp = ExistingExperiment()
score = test_model()
exp.log_metric("test accuracy", score)
ExistingExperiment.url¶
Get the url of the experiment.
Example:
```python
api_experiment.url "https://www.comet.ml/username/34637643746374637463476" ```
ExistingExperiment.__init__¶
python
__init__(self, api_key=None, previous_experiment=None, **kwargs)
Continues an Comet.ml experiment.
Uses the same arguments and keywords as Experiment, and the following:
Args:
- previous_experiment: Your experiment key from comet.ml
Note: ExistingExperiment does not alter nor destroy previously logged information. To override or add to previous information you will have to set the appropriate following parameters to True:
- log_code
- log_graph
- parse_args
- log_env_details
- log_git_metadata
- log_git_patch
- log_env_gpu
- log_env_cpu
- log_env_host
For example, to contiue to collect GPU information in an
ExistingExperiment you will need to override these parameters:
```python
experiment = ExistingExperiment( ... log_env_details=True, ... log_env_gpu=True) ```
You can also set the previous_experiment via COMET_EXPERIMENT_KEY in the
Comet Config Variables.
See also: