def __array_interface__(self):
"""Return an `__array_interface__` version 3.
Note that the pointer returned in the items 'data' corresponds to
a memory area under R's memory management and that it will become
invalid once the area once R frees the object. It is safer to keep
the rpy2 object proxying the R object alive for the duration the
pointer is used in Python / numpy."""
return {
'shape': bufferprotocol.getshape(self.__sexp__._cdata),
'typestr': self._NP_TYPESTR,
'strides': bufferprotocol.getstrides(self.__sexp__._cdata),
'data': self._R_GET_PTR(self.__sexp__._cdata),
'version': 3
}
def __array_interface__(self: NPCOMPAT_TYPE) -> dict:
"""Return an `__array_interface__` version 3.
Note that the pointer returned in the items 'data' corresponds to
a memory area under R's memory management and that it will become
invalid once the area once R frees the object. It is safer to keep
the rpy2 object proxying the R object alive for the duration the
pointer is used in Python / numpy."""
shape = bufferprotocol.getshape(self.__sexp__._cdata)
data = openrlib.ffi.buffer(self._R_GET_PTR(self.__sexp__._cdata))
strides = bufferprotocol.getstrides(self.__sexp__._cdata, shape,
self._R_SIZEOF_ELT)
return {
'shape': shape,
'typestr': self._NP_TYPESTR,
'strides': strides,
'data': data,
'version': 3
}