.. DO NOT EDIT. .. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY. .. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE: .. "auto_tutorials/2D_datasets/plot_1_2D.py" .. LINE NUMBERS ARE GIVEN BELOW. .. only:: html .. note:: :class: sphx-glr-download-link-note :ref:`Go to the end ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_auto_tutorials_2D_datasets_plot_1_2D.py: 2D{1} dataset with linear and monotonic dimensions -------------------------------------------------- .. GENERATED FROM PYTHON SOURCE LINES 6-8 In the following example, we illustrate how one can covert a Numpy array into a CSDM object. Start by importing the Numpy and csdmpy libraries. .. GENERATED FROM PYTHON SOURCE LINES 8-13 .. code-block:: Python import matplotlib.pyplot as plt import numpy as np import csdmpy as cp .. GENERATED FROM PYTHON SOURCE LINES 14-15 Let's generate a 2D NumPy array of random numbers as our dataset. .. GENERATED FROM PYTHON SOURCE LINES 15-18 .. code-block:: Python data = np.random.rand(8192).reshape(32, 256) .. GENERATED FROM PYTHON SOURCE LINES 19-20 Create the DependentVariable object from the numpy object. .. GENERATED FROM PYTHON SOURCE LINES 20-22 .. code-block:: Python dv = cp.as_dependent_variable(data, unit="J/(mol K)") .. GENERATED FROM PYTHON SOURCE LINES 23-24 Create the two Dimension objects. .. GENERATED FROM PYTHON SOURCE LINES 24-28 .. code-block:: Python d0 = cp.LinearDimension( count=256, increment="15.23 µs", coordinates_offset="-1.95 ms", label="t1" ) .. GENERATED FROM PYTHON SOURCE LINES 29-33 Here, ``d0`` is a LinearDimension with 256 points and 15.23 µs increment. You may similarly set the second dimension as a LinearDimension, however, in this example, let's set it as a MonotonicDimension. .. GENERATED FROM PYTHON SOURCE LINES 33-36 .. code-block:: Python array = 10 ** (np.arange(32) / 8) d1 = cp.as_dimension(array, unit="µs", label="t2") .. GENERATED FROM PYTHON SOURCE LINES 37-42 The variable ``array`` is a NumPy array that is uniformly sampled on a log scale. To convert this array into a Dimension object, we use the :meth:`~csdmpy.as_dimension` method. Creating the CSDM object. .. GENERATED FROM PYTHON SOURCE LINES 42-45 .. code-block:: Python csdm_object = cp.CSDM(dependent_variables=[dv], dimensions=[d0, d1]) print(csdm_object.dimensions) .. rst-class:: sphx-glr-script-out .. code-block:: none [LinearDimension(count=256, increment=15.23 µs, coordinates_offset=-1.95 ms, quantity_name=time, label=t1, reciprocal={'quantity_name': 'frequency'}), MonotonicDimension(coordinates=[1.00000000e+00 1.33352143e+00 1.77827941e+00 2.37137371e+00 3.16227766e+00 4.21696503e+00 5.62341325e+00 7.49894209e+00 1.00000000e+01 1.33352143e+01 1.77827941e+01 2.37137371e+01 3.16227766e+01 4.21696503e+01 5.62341325e+01 7.49894209e+01 1.00000000e+02 1.33352143e+02 1.77827941e+02 2.37137371e+02 3.16227766e+02 4.21696503e+02 5.62341325e+02 7.49894209e+02 1.00000000e+03 1.33352143e+03 1.77827941e+03 2.37137371e+03 3.16227766e+03 4.21696503e+03 5.62341325e+03 7.49894209e+03] us, quantity_name=time, label=t2, reciprocal={'quantity_name': 'frequency'})] .. GENERATED FROM PYTHON SOURCE LINES 46-47 Plot of the dataset. .. GENERATED FROM PYTHON SOURCE LINES 47-52 .. code-block:: Python plt.figure(figsize=(5, 3.5)) cp.plot(csdm_object) plt.tight_layout() plt.show() .. image-sg:: /auto_tutorials/2D_datasets/images/sphx_glr_plot_1_2D_001.png :alt: plot 1 2D :srcset: /auto_tutorials/2D_datasets/images/sphx_glr_plot_1_2D_001.png :class: sphx-glr-single-img .. GENERATED FROM PYTHON SOURCE LINES 53-54 To serialize the file, use the save method. .. GENERATED FROM PYTHON SOURCE LINES 54-55 .. code-block:: Python csdm_object.save("2D_1_dataset.csdf") .. rst-class:: sphx-glr-timing **Total running time of the script:** (0 minutes 0.267 seconds) .. _sphx_glr_download_auto_tutorials_2D_datasets_plot_1_2D.py: .. only:: html .. container:: sphx-glr-footer sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: plot_1_2D.ipynb ` .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: plot_1_2D.py ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_