.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/G2/jackknife.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_auto_examples_G2_jackknife.py>`
        to download the full example code.

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

.. _sphx_glr_auto_examples_G2_jackknife.py:


=================
Jackknife dataset
=================

Simple example of jacknnife generation on G2 dataset from the N2CLS GTO.

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First import the :class:`nikamap.jackkinfe` class

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.. code-block:: Python


    from pathlib import Path
    from nikamap import Jackknife


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This define the root directory where all the data ...

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.. code-block:: Python


    DATA_DIR = Path("/data/NIKA/Reduced/G2_COMMON_MODE_ONE_BLOCK/v_1")


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can be retrieved using a simple regular expression

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.. code-block:: Python


    filenames = list(DATA_DIR.glob('*/map.fits'))
    filenames


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Create a jackknife object for future use in, for e.g., a simulation,

.. note:: by default the constructor will read all the maps in memory

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.. code-block:: Python


    jacks = Jackknife(filenames, n=10)



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The `jacks` object can be iterated upon, each of the items is a different jackknife with noise properties corresponding to the original dataset

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.. code-block:: Python



    for nm in jacks:
        print(nm.check_SNR())


.. _sphx_glr_download_auto_examples_G2_jackknife.py:

.. only:: html

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

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

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

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

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

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

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


.. only:: html

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

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