how to select subset of data in a dataset using xarray
#import xarray
import xarray as xr
#open the dataset
ds = xr.open_dataset(file_name.nc)
#get a subset of the data
ds.sel(dim=slice()) # input the dimension (dim) to select and the value of the dimension into the slice function(slice)
ds.loc[{'dim': slice()}]
ds.where(bool array) #locate the values based on a condition
#examples
ds[var_name].loc[{'latitude': slice(60,48),
'longitude': slice(-12,5)}]
ds.where(ds[var_name] > 0.1)
#the example will return a subset of the dataset where the latitude
#and longitude are of the requirements stated in the slice function