Access the datasets and models from the causal chambers.
Project description
Welcome to the causalchamber
package
The causalchamber
package gives you access to datasets, mechanistic models, and ground-truth graphs from the causal chamber project. See causalchamber.org for more details.
Download
You can install the package via pip, i.e. by typing
pip install causalchamber
in an appropriate shell.
Accessing the datasets
Datasets can be loaded directly into your Python code. For example, you can load the lt_camera_test_v1
image dataset as follows:
import causalchamber.datasets as datasets
# Download the dataset and store it, e.g., in the current directory
dataset = datasets.Dataset(name='lt_camera_test_v1', root='./', download=True)
# Select an experiment and load the observations and images
experiment = dataset.get_experiment(name='palette')
observations = experiment.as_pandas_dataframe()
images = experiment.as_image_array(size='200')
If download=True
, the dataset will be downloaded and stored in the path provided by the root
argument. If the dataset has already been downloaded it will not be downloaded again.
You can see what datasets are available at causalchamber.org or by typing:
datasets.list_available()
# Output:
# Available datasets (last changes on 2024-03-26):
#
# lt_camera_walks_v1
# lt_test_v1
# wt_intake_impulse_v1
# lt_malus_v1
# lt_camera_test_v1
# wt_test_v1
#
# Visit https://causalchamber.org for a detailed description of each dataset.
For the available experiments in each dataset, you can run:
dataset.available_experiments()
# Output:
# ['palette',
# 'polarizer_effect_bright',
# 'polarizer_effect_dark',
# 'pure_colors_bright',
# 'pure_colors_dark']
For the available image sizes (only in image datasets):
experiment.available_sizes()
# Output:
# ['200', '500', 'full']
Mechanistic models
The causalchamber
package also contains Python implementations of the mechanistic models described in appendix IV of the original paper. The models follow the same nomenclature as in the paper, e.g., to import and run model A1 of the steady-state fan speed:
import numpy as np
from causalchamber.models import model_a1
model_a1(L=np.linspace(0,1,10), L_min=0.1, omega_max=314.15)
# Output:
# array([ 31.415 , 34.90555556, 69.81111111, 104.71666667,
# 139.62222222, 174.52777778, 209.43333333, 244.33888889,
# 279.24444444, 314.15 ])
The implementations can be found in the src/causalchamber/models
directory. You can find examples of using the models in the case_studies/mechanistic_models.ipynb
notebook in the separate paper repository.
Causal ground-truth graphs
The graphs for the causal ground truths given in Fig. 3 of the original paper can be found as adjacency matrices in the ground_truths/
directory of the project repository. The adjacencies can also be loaded through the causalchamber
package, e.g.,
from causalchamber.ground_truth import graph
graph(chamber="lt", configuration="standard")
# Output:
# red green blue osr_c v_c current pol_1 pol_2 osr_angle_1 \
# red 0 0 0 0 0 1 0 0 0
# green 0 0 0 0 0 1 0 0 0
# blue 0 0 0 0 0 1 0 0 0
# osr_c 0 0 0 0 0 1 0 0 0
The chamber identifiers are wt,lt
for the wind tunnel and light tunnel, respectively. To make it easier to plot graphs and reference them back to the original paper, the latex representation of each variable can be obtained by calling the latex_name
function. For example, to obtain the latex representation $\theta_1$ of the pol_1
variable, you can run
from causalchamber.ground_truth import latex_name
latex_name('pol_1', enclose=True)
# Output:
# '$\\theta_1$'
Setting enclose=False
will return the name without surrounding $
.
Versioning
Non backward-compatible changes to the API are reflected by a change to the minor or major version number,
e.g. code that uses causalchamber==0.1.2 will run with causalchamber==0.1.3, but may not run with causalchamber==0.2.0.
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