Exemplo n.º 1
0
    def full(self):
        """
        Generate a full numpy array

        Returns
        -------

        implicit : tuple
                   first element being the full numpy array and second element
                   keys being the ids associated with each row in the array.



        Examples
        --------
        >>> from pysal import W
        >>> neighbors={'first':['second'],'second':['first','third'],'third':['second']}
        >>> weights={'first':[1],'second':[1,1],'third':[1]}
        >>> w=W(neighbors,weights)
        >>> wf,ids=w.full()
        >>> wf
        array([[ 0.,  1.,  0.],
               [ 1.,  0.,  1.],
               [ 0.,  1.,  0.]])
        >>> ids
        ['first', 'second', 'third']

        See also
        --------
        full
        """
        return util.full(self)
Exemplo n.º 2
0
    def full(self):
        """
        Generate a full numpy array.

        Returns
        -------

        implicit : tuple
                   first element being the full numpy array and second element
                   keys being the ids associated with each row in the array.

        Examples
        --------
        >>> from pysal import W
        >>> neighbors={'first':['second'],'second':['first','third'],'third':['second']}
        >>> weights={'first':[1],'second':[1,1],'third':[1]}
        >>> w=W(neighbors,weights)
        >>> wf,ids=w.full()
        >>> wf
        array([[ 0.,  1.,  0.],
               [ 1.,  0.,  1.],
               [ 0.,  1.,  0.]])
        >>> ids
        ['first', 'second', 'third']

        See also
        --------
        full

        """
        return util.full(self)
Exemplo n.º 3
0
    def write(self, obj):
        """

        Parameters
        ----------
        .write(weightsObject)
        accepts a weights object

        Returns
        ------

        a MATLAB mat file
        write a weights object to the opened mat file.

        Examples
        --------

        >>> import tempfile, pysal, os
        >>> testfile = pysal.open(pysal.examples.get_path('spat-sym-us.mat'),'r')
        >>> w = testfile.read()

        Create a temporary file for this example

        >>> f = tempfile.NamedTemporaryFile(suffix='.mat')

        Reassign to new var

        >>> fname = f.name

        Close the temporary named file

        >>> f.close()

        Open the new file in write mode

        >>> o = pysal.open(fname,'w')

        Write the Weights object into the open file

        >>> o.write(w)
        >>> o.close()

        Read in the newly created mat file

        >>> wnew =  pysal.open(fname,'r').read()

        Compare values from old to new

        >>> wnew.pct_nonzero == w.pct_nonzero
        True

        Clean up temporary file created for this example

        >>> os.remove(fname)

        """
        self._complain_ifclosed(self.closed)
        if issubclass(type(obj), W):
            try:
                w = full(obj)[0]
            except ValueError:
                w = obj.sparse
            sio.savemat(self.file, {'WEIGHT': w})
            self.pos += 1
        else:
            raise TypeError("Expected a pysal weights object, got: %s" %
                            (type(obj)))
Exemplo n.º 4
0
Arquivo: mat.py Projeto: CartoDB/pysal
    def write(self, obj):
        """

        Parameters
        ----------
        .write(weightsObject)
        accepts a weights object

        Returns
        ------

        a MATLAB mat file
        write a weights object to the opened mat file.

        Examples
        --------

        >>> import tempfile, pysal, os
        >>> testfile = pysal.open(pysal.examples.get_path('spat-sym-us.mat'),'r')
        >>> w = testfile.read()

        Create a temporary file for this example

        >>> f = tempfile.NamedTemporaryFile(suffix='.mat')

        Reassign to new var

        >>> fname = f.name

        Close the temporary named file

        >>> f.close()

        Open the new file in write mode

        >>> o = pysal.open(fname,'w')

        Write the Weights object into the open file

        >>> o.write(w)
        >>> o.close()

        Read in the newly created mat file

        >>> wnew =  pysal.open(fname,'r').read()

        Compare values from old to new

        >>> wnew.pct_nonzero == w.pct_nonzero
        True

        Clean up temporary file created for this example

        >>> os.remove(fname)

        """
        self._complain_ifclosed(self.closed)
        if issubclass(type(obj), W):
            try:
                w = full(obj)[0]
            except ValueError:
                w = obj.sparse
            sio.savemat(self.file, {'WEIGHT': w})
            self.pos += 1
        else:
            raise TypeError("Expected a pysal weights object, got: %s" % (
                type(obj)))