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Attributes
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_data : recarray
Underlying data, as a record array.
_mask : boolean array
Mask of the records. A record is masked when all its fields are
masked.
_fieldmask : boolean recarray
Record array of booleans, setting the mask of each individual field
of each record.
_fill_value : record
Filling values for each field.
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Sets the attribute attr to the value val.
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Returns all the fields sharing the same fieldname base.
The fieldname base is either `_data` or `_mask`.
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Sets the given record to value.
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Calculates the string representation.
r$ c T g | ]%}d d d |D d&S )(r# c , g | ]}t | S r r* r s r r! z4MaskedRecords.__str__...U s !4!4!4Q#a&&!4!4!4r" )joinr ss r r! z)MaskedRecords.__str__..U sT Q Q Q 9!4!4!!4!4!455888 Q Q Qr" c 0 g | ]}t | S r rj r frB s r r! z)MaskedRecords.__str__..V s# "N"N"N74#3#3"N"N"Nr" [z, ]c N g | ]"}d d |D #S )r# c , g | ]}t | S r r r s r r! z4MaskedRecords.__str__...Y s 3 3 3AQ 3 3 3r" r r s r r! z)MaskedRecords.__str__..Y sL P P P xx 3 3 3 3 3446 P P Pr" c 0 g | ]}t | S r r r s r r! z)MaskedRecords.__str__..Z s# !M!M!Mq'$"2"2!M!M!Mr" r r )rX r- r r2 r )rB mstrs ` r __str__zMaskedRecords.__str__O s
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,,..f===dj''))**t }} r" c d| j | j | j j | j | j | j f}|S )zWReturn the internal state of the masked array.
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Restore the internal state of the masked array.
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``__getstate__`` output, and is a 5-tuple:
- class name
- a tuple giving the shape of the data
- a typecode for the data
- a binary string for the data
- a binary string for the mask.
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Return a 3-tuple for pickling a MaskedArray.
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Build a new MaskedArray from the information stored in a pickle.
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Creates a mrecarray from a (flat) list of masked arrays.
Parameters
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arraylist : sequence
A list of (masked) arrays. Each element of the sequence is first converted
to a masked array if needed. If a 2D array is passed as argument, it is
processed line by line
dtype : {None, dtype}, optional
Data type descriptor.
shape : {None, integer}, optional
Number of records. If None, shape is defined from the shape of the
first array in the list.
formats : {None, sequence}, optional
Sequence of formats for each individual field. If None, the formats will
be autodetected by inspecting the fields and selecting the highest dtype
possible.
names : {None, sequence}, optional
Sequence of the names of each field.
fill_value : {None, sequence}, optional
Sequence of data to be used as filling values.
Notes
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Lists of tuples should be preferred over lists of lists for faster processing.
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Creates a MaskedRecords from a list of records.
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reclist : sequence
A list of records. Each element of the sequence is first converted
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processed line by line
dtype : {None, dtype}, optional
Data type descriptor.
shape : {None,int}, optional
Number of records. If None, ``shape`` is defined from the shape of the
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formats : {None, sequence}, optional
Sequence of formats for each individual field. If None, the formats will
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names : {None, sequence}, optional
Sequence of the names of each field.
fill_value : {None, sequence}, optional
Sequence of data to be used as filling values.
mask : {nomask, sequence}, optional.
External mask to apply on the data.
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Tries to guess the dtypes of the str_ ndarray `arr`.
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is performed on the first line. An exception is raised if the file is
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Creates a mrecarray from data stored in the file `filename`.
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fname : {file name/handle}
Handle of an opened file.
delimiter : {None, string}, optional
Alphanumeric character used to separate columns in the file.
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commentchar : {'#', string}, optional
Alphanumeric character used to mark the start of a comment.
missingchar : {'', string}, optional
String indicating missing data, and used to create the masks.
varnames : {None, sequence}, optional
Sequence of the variable names. If None, a list will be created from
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Ultra simple: the varnames are in the header, one lineNz;fromtextfile() got multiple values for argument 'delimiter'zThe 'delimitor' keyword argument of numpy.ma.mrecords.fromtextfile() is deprecated since NumPy 1.22.0, use 'delimiter' instead.r~ )
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