issues: 157886730
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| 157886730 | MDU6SXNzdWUxNTc4ODY3MzA= | 864 | TypeError: invalid type promotion when reading multi-file dataset | 743508 | closed | 0 | 3 | 2016-06-01T11:44:49Z | 2019-01-27T21:54:49Z | 2019-01-27T21:54:49Z | CONTRIBUTOR | I'm trying to select data from a collection of weather files. Xarray opens the multifile dataset perfectly, but when I try the following selection: ``` python cfsr_new = xr.open_mfdataset('*.grb2.nc') lon_sel = np.array(cfsr_new.lon[np.array([3, 4, 8])]) lat_sel = np.array(cfsr_new.lat[np.array([2, 3, 4])]) time_sel = cfsr_new.time[100:200] selection = cfsr_new.sel(lon=lon_sel, lat=lat_sel, time=time_sel) selection.to_array() ``` I get: ```TypeError Traceback (most recent call last) <ipython-input-38-3f04c6458da2> in <module>() ----> 1 selection.to_array() /Users/<user>/anaconda/lib/python3.5/site-packages/xarray/core/dataset.py in to_array(self, dim, name) 1847 data_vars = [self.variables[k] for k in self.data_vars] 1848 broadcast_vars = broadcast_variables(*data_vars) -> 1849 data = ops.stack([b.data for b in broadcast_vars], axis=0) 1850 1851 coords = dict(self.coords) /Users/<user>//anaconda/lib/python3.5/site-packages/xarray/core/ops.py in f(args, kwargs) 65 else: 66 module = eager_module ---> 67 return getattr(module, name)(args, kwargs) 68 else: 69 def f(data, *args, kwargs): /Users/<user>//anaconda/lib/python3.5/site-packages/dask/array/core.py in stack(seq, axis) 1754 1755 if all(a._dtype is not None for a in seq): -> 1756 dt = reduce(np.promote_types, [a._dtype for a in seq]) 1757 else: 1758 dt = None /Users/<user>//anaconda/lib/python3.5/site-packages/toolz/functoolz.py in call(self, args, kwargs) 217 def call(self, args, kwargs): 218 try: --> 219 return self._partial(*args, kwargs) 220 except TypeError: 221 # If there was a genuine TypeError TypeError: invalid type promotion ``` |
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completed | 13221727 | issue |