Expand dimensions xarray

Question

Is there an existing method or approach to expand the dimensions (and coordinates) of an xarray.DataArray object?

I would like to obtain something simil

Answer 1

In xarray v0.10.0, I use a combination of assign_coords() and expand_dims() to add a new dimension and coordinate variable.

For example:

import xarray as xr
import numpy as np
data = xr.DataArray([1, 2, 3], dims='x', coords={'x': [10, 20, 30]})
data_newcoord = data.assign_coords(y='coord_value')
data_expanded = data_newcoord.expand_dims('y')
print(data_expanded)
# 
# array([[1, 2, 3]])
# Coordinates:
#   * x        (x) int64 10 20 30
#   * y        (y)