.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "examples/line_plots/errorbars_fillbetween.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_examples_line_plots_errorbars_fillbetween.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_examples_line_plots_errorbars_fillbetween.py:


Error bars & shaded confidence band
===================================

Shaded 95% band plus asymmetric error bars — implemented with EMCPy
layers only (FillBetween, LinePlot, ErrorBar).

.. GENERATED FROM PYTHON SOURCE LINES 8-61



.. image-sg:: /examples/line_plots/images/sphx_glr_errorbars_fillbetween_001.png
   :alt: Error bars with shaded band
   :srcset: /examples/line_plots/images/sphx_glr_errorbars_fillbetween_001.png
   :class: sphx-glr-single-img





.. code-block:: Python

    import numpy as np
    import matplotlib.pyplot as plt

    from emcpy.plots.plots import LinePlot, FillBetween, ErrorBar
    from emcpy.plots.create_plots import CreatePlot, CreateFigure

    rng = np.random.default_rng(42)
    x = np.linspace(0, 10, 25)
    y_obs = np.sin(x) + 0.2*rng.standard_normal(x.size)

    # Smooth model & band
    xx = np.linspace(0, 10, 400)
    y_model = np.sin(xx)
    band = 0.3
    err_lo = 0.15 + 0.05*rng.random(x.size)
    err_hi = 0.20 + 0.05*rng.random(x.size)

    p = CreatePlot()
    layers = []

    # Shaded confidence band
    fb = FillBetween(xx, y_model - band, y_model + band)
    fb.alpha = 0.25
    fb.label = "95% band"
    layers.append(fb)

    # Model line
    lp = LinePlot(xx, y_model)
    lp.linewidth = 2
    lp.label = "model"
    layers.append(lp)

    # Observations with asymmetric error bars
    eb = ErrorBar(x, y_obs)
    eb.yerr = [err_lo, err_hi]
    eb.fmt = "o"
    eb.capsize = 3
    eb.label = "observations"
    layers.append(eb)


    p.plot_layers = layers
    p.add_title("Error bars with shaded band")
    p.add_xlabel("x")
    p.add_ylabel("value")
    p.add_grid()
    p.add_legend(loc="upper center", frameon=False)

    fig = CreateFigure(nrows=1, ncols=1, figsize=(7.5, 4))
    fig.plot_list = [p]
    fig.create_figure()
    fig.tight_layout()
    plt.show()


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.085 seconds)


.. _sphx_glr_download_examples_line_plots_errorbars_fillbetween.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: errorbars_fillbetween.ipynb <errorbars_fillbetween.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: errorbars_fillbetween.py <errorbars_fillbetween.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: errorbars_fillbetween.zip <errorbars_fillbetween.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_