.. _routines.ma: Masked array operations *********************** .. currentmodule:: numpy Constants ========= .. autosummary:: :toctree: generated/ ma.MaskType Creation ======== From existing data ~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.masked_array ma.array ma.copy ma.frombuffer ma.fromfunction ma.MaskedArray.copy Ones and zeros ~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.empty ma.empty_like ma.masked_all ma.masked_all_like ma.ones ma.zeros _____ Inspecting the array ==================== .. autosummary:: :toctree: generated/ ma.all ma.any ma.count ma.count_masked ma.getmask ma.getmaskarray ma.getdata ma.nonzero ma.shape ma.size ma.MaskedArray.data ma.MaskedArray.mask ma.MaskedArray.recordmask ma.MaskedArray.all ma.MaskedArray.any ma.MaskedArray.count ma.MaskedArray.nonzero ma.shape ma.size _____ Manipulating a MaskedArray ========================== Changing the shape ~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.ravel ma.reshape ma.resize ma.MaskedArray.flatten ma.MaskedArray.ravel ma.MaskedArray.reshape ma.MaskedArray.resize Modifying axes ~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.swapaxes ma.transpose ma.MaskedArray.swapaxes ma.MaskedArray.transpose Changing the number of dimensions ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.atleast_1d ma.atleast_2d ma.atleast_3d ma.expand_dims ma.squeeze ma.MaskedArray.squeeze ma.column_stack ma.concatenate ma.dstack ma.hstack ma.hsplit ma.mr_ ma.row_stack ma.vstack Joining arrays ~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.column_stack ma.concatenate ma.dstack ma.hstack ma.vstack _____ Operations on masks =================== Creating a mask ~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.make_mask ma.make_mask_none ma.mask_or ma.make_mask_descr Accessing a mask ~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.getmask ma.getmaskarray ma.masked_array.mask Finding masked data ~~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.flatnotmasked_contiguous ma.flatnotmasked_edges ma.notmasked_contiguous ma.notmasked_edges Modifying a mask ~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.mask_cols ma.mask_or ma.mask_rowcols ma.mask_rows ma.harden_mask ma.soften_mask ma.MaskedArray.harden_mask ma.MaskedArray.soften_mask ma.MaskedArray.shrink_mask ma.MaskedArray.unshare_mask _____ Conversion operations ====================== > to a masked array ~~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.asarray ma.asanyarray ma.fix_invalid ma.masked_equal ma.masked_greater ma.masked_greater_equal ma.masked_inside ma.masked_invalid ma.masked_less ma.masked_less_equal ma.masked_not_equal ma.masked_object ma.masked_outside ma.masked_values ma.masked_where > to a ndarray ~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.compress_cols ma.compress_rowcols ma.compress_rows ma.compressed ma.filled ma.MaskedArray.compressed ma.MaskedArray.filled > to another object ~~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.MaskedArray.tofile ma.MaskedArray.tolist ma.MaskedArray.torecords ma.MaskedArray.tostring Pickling and unpickling ~~~~~~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.dump ma.dumps ma.load ma.loads Filling a masked array ~~~~~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.common_fill_value ma.default_fill_value ma.maximum_fill_value ma.maximum_fill_value ma.set_fill_value ma.MaskedArray.get_fill_value ma.MaskedArray.set_fill_value ma.MaskedArray.fill_value _____ Masked arrays arithmetics ========================= Arithmetics ~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.anom ma.anomalies ma.average ma.conjugate ma.corrcoef ma.cov ma.cumsum ma.cumprod ma.mean ma.median ma.power ma.prod ma.std ma.sum ma.var ma.MaskedArray.anom ma.MaskedArray.cumprod ma.MaskedArray.cumsum ma.MaskedArray.mean ma.MaskedArray.prod ma.MaskedArray.std ma.MaskedArray.sum ma.MaskedArray.var Minimum/maximum ~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.argmax ma.argmin ma.max ma.min ma.ptp ma.MaskedArray.argmax ma.MaskedArray.argmin ma.MaskedArray.max ma.MaskedArray.min ma.MaskedArray.ptp Sorting ~~~~~~~ .. autosummary:: :toctree: generated/ ma.argsort ma.sort ma.MaskedArray.argsort ma.MaskedArray.sort Algebra ~~~~~~~ .. autosummary:: :toctree: generated/ ma.diag ma.dot ma.identity ma.inner ma.innerproduct ma.outer ma.outerproduct ma.trace ma.transpose ma.MaskedArray.trace ma.MaskedArray.transpose Polynomial fit ~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.vander ma.polyfit Clipping and rounding ~~~~~~~~~~~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.around ma.clip ma.round ma.MaskedArray.clip ma.MaskedArray.round Miscellanea ~~~~~~~~~~~ .. autosummary:: :toctree: generated/ ma.allequal ma.allclose ma.apply_along_axis ma.arange ma.choose ma.ediff1d ma.indices ma.where