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first commit for nddata object
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‎astropy/nddata/__init__.py‎

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# Licensed under a 3-clause BSD style license - see LICENSE.rst
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from .nddata import NDData
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"""_NDData is is a module that manages n-dimensional array based data (e.g. CCD images, IFU Data, optical spectra, ...)"""

‎astropy/nddata/nddata.py‎

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# Licensed under a 3-clause BSD style license - see LICENSE.rst
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class NDData(object):
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"""Class to store array type data.
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`NDData` provides a superclass for all array based data.
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Initialize an NDData object with data
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Parameters
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----------
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data : `numpy.array`
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n-dimensional array containing the n-dimensional data
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error: `numpy.array`, optional
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n-dimensional array containing the error of the data
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mask: `numpy.array`, optional
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n-dimensional array masking the data (suggested dtype=`bool`)
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wcs: `astropy.wcs`, optional
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WCS-object containing the world coordinate algorithms for the adta
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meta: `dict`-like object, optional
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contains meta data for the n-dimensional data
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units: `astropy.units`, optional
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describing the units of the data
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"""
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def __init__(self, data, error=None, mask=None, wcs=None, meta=None, units=None):
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self.data = data
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self.error = error
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self.mask = mask
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self.wcs = wcs
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self.meta = meta
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self.units = units

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