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# mypy | ||
.mypy_cache/ | ||
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# PyCharm | ||
.idea |
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Scikit-Gstat | ||
============ | ||
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description | ||
This module offers at the current state a scipy-styled `Variogram` class for performing geostatistical analysis. | ||
This class is can be used to derive variograms. Key benefits are a number of semivariance estimators and theoretical | ||
variogram functions. The module is planned to be hold in the manner of scikit modules and be based upon `numpy` and | ||
`scipy` whenever possible. There is also a distance matrix extension available, with a function for calculating | ||
n.dimensional distance matrices for the variogram. | ||
The estimators include: | ||
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- matheron | ||
- cressie | ||
- dowd | ||
- genton (still buggy) | ||
- entropy (not tested) | ||
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The models include: | ||
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- sperical | ||
- exponential | ||
- gaussian | ||
- cubic | ||
- stable | ||
- matérn | ||
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with all of them in a nugget and no-nugget variation. All the estimator functions are written `numba` compatible, | ||
therefore you can just download it and include the `@jit` decorator. This can speed up the calculation for bigger | ||
data sets up to 100x. Nevertheless, this is not included in this sckit-gstat version as these functions might be | ||
re-implemented using Cython. This is still under evaluation. | ||
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At the current stage, the package does not inlcude any kriging. This is planned for a future release. | ||
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Installation | ||
~~~~~~~~~~~~ | ||
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You can either install scikit-gstat using pip or you download the latest version from github. | ||
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PyPI: | ||
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.. code-block:: bash | ||
pip install scikit-gstat | ||
GIT: | ||
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.. code-block:: bash | ||
git clone https://github.com/mmaelicke/scikit-gstat.git | ||
cd scikit-gstat | ||
pip install -r requirements.txt | ||
pip install -e . | ||
Usage | ||
~~~~~ | ||
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The `Variogram` class needs at least a list of coordiantes and values. All other attributes are set by default. | ||
You can easily set up an example by generating some random data: | ||
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.. code-block:: python | ||
import numpy as np | ||
import skgstat as skg | ||
coordinates = np.random.gamma(0.7, 2, (30,2)) | ||
values = np.random.gamma(2, 2, 30) | ||
V = skg.Variogram(coordinates=coordinates, values=values) | ||
print(V) | ||
.. code-block:: bash | ||
spherical Variogram | ||
------------------- | ||
Estimator: matheron | ||
Range: 1.64 | ||
Sill: 5.35 | ||
Nugget: 0.00 |
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0.1 | ||
0.1.1 |
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