Thanks for your reply. This is my script.
[ 0.247608657572, 0.478838479577, 0.067606299506],
[ 0.500000000002, 0.581299876116, 0.392385497312]]
# Set up configuration
bulk_configuration = BulkConfiguration(
bravais_lattice=lattice,
elements=elements,
fractional_coordinates=fractional_coordinates
)
# -------------------------------------------------------------
# Analysis from File
# -------------------------------------------------------------
bulk_configuration = nlread('H4-V.nc', object_id='gID001')[0]
# -------------------------------------------------------------
# Electron Difference Density
# -------------------------------------------------------------
electron_difference_density = ElectronDifferenceDensity(bulk_configuration)
nlsave('ElectronDifferenceDensity-H4-V.nc', electron_difference_density)