arviz.sel_utils.xarray_sel_iter#
- arviz.sel_utils.xarray_sel_iter(data, var_names=None, combined=False, skip_dims=None, reverse_selections=False)[source]#
Convert xarray data to an iterator over variable names and selections.
Iterates over each var_name and all of its coordinates, returning the variable names and selections that allow properly obtain the data from
data
as desired.- Parameters
- dataxarray.Dataset
Posterior data in an xarray
- var_namesiterator of strings (optional)
Should be a subset of data.data_vars. Defaults to all of them.
- combinedbool
Whether to combine chains or leave them separate
- skip_dimsset
dimensions to not iterate over
- reverse_selectionsbool
Whether to reverse selections before iterating.
- Returns
- Iterator of (var_name: str, selection: dict(str, any))
The string is the variable name, the dictionary are coordinate names to values,. To get the values of the variable at these coordinates, do
data[var_name].sel(**selection)
.