issues: 620009114
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| 620009114 | MDU6SXNzdWU2MjAwMDkxMTQ= | 4072 | [BUG] xr.concat inverts coordinates order | 31700619 | closed | 0 | 5 | 2020-05-18T08:25:09Z | 2020-09-19T09:41:01Z | 2020-09-19T09:41:00Z | CONTRIBUTOR | Following the issue #3969 Merging two datasets using xr.concat inverts the coordinates order. MCVE Code Sample``` import numpy as np import xarray as xr x = np.arange(0,10) y = np.arange(0,10) time = [0,1] data = np.zeros((10,10), dtype=bool) dataArray1 = xr.DataArray([data], coords={'time': [time[0]], 'y': y, 'x': x}, dims=['time', 'y', 'x']) dataArray2 = xr.DataArray([data], coords={'time': [time[1]], 'y': y, 'x': x}, dims=['time', 'y', 'x']) dataArray1 = dataArray1.to_dataset(name='data') dataArray2 = dataArray2.to_dataset(name='data') print(dataArray1) print(xr.concat([dataArray1,dataArray2], dim='time')) ``` Current Output``` <xarray.Dataset> Dimensions: (time: 1, x: 10, y: 10) Coordinates: * time (time) int64 0 * y (y) int64 0 1 2 3 4 5 6 7 8 9 * x (x) int64 0 1 2 3 4 5 6 7 8 9 Data variables: data (time, y, x) bool False False False False ... False False False <xarray.Dataset> Dimensions: (time: 2, x: 10, y: 10) Coordinates: * x (x) int64 0 1 2 3 4 5 6 7 8 9 ##Inverted x and y * y (y) int64 0 1 2 3 4 5 6 7 8 9 * time (time) int64 0 1 Data variables: data (time, y, x) bool False False False False ... False False False ``` Expected Output``` <xarray.Dataset> Dimensions: (time: 1, x: 10, y: 10) Coordinates: * time (time) int64 0 * y (y) int64 0 1 2 3 4 5 6 7 8 9 * x (x) int64 0 1 2 3 4 5 6 7 8 9 Data variables: data (time, y, x) bool False False False False ... False False False <xarray.Dataset> Dimensions: (time: 2, x: 10, y: 10) Coordinates: * y (y) int64 0 1 2 3 4 5 6 7 8 9 * x (x) int64 0 1 2 3 4 5 6 7 8 9 * time (time) int64 0 1 Data variables: data (time, y, x) bool False False False False ... False False False ``` Problem DescriptionThe concat function should not invert the coordinates but maintain the original order. VersionsINSTALLED VERSIONS------------------ commit: None python: 3.6.8 (default, May 7 2019, 14:58:50) [GCC 8.3.0] python-bits: 64 OS: Linux OS-release: 4.15.0-88-generic machine: x86_64 processor: x86_64 byteorder: little LC_ALL: None LANG: C.UTF-8 LOCALE: en_US.UTF-8 libhdf5: None libnetcdf: None xarray: 0.15.1 pandas: 1.0.3 numpy: 1.18.2 scipy: None netCDF4: None pydap: None h5netcdf: None h5py: None Nio: None zarr: None cftime: None nc_time_axis: None PseudoNetCDF: None rasterio: None cfgrib: None iris: None bottleneck: None dask: None distributed: None matplotlib: 3.2.0 cartopy: None seaborn: None numbagg: None setuptools: 46.1.3 pip: 9.0.1 conda: None pytest: None IPython: 7.13.0 sphinx: 2.4.3 |
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completed | 13221727 | issue |