def create_sample_frame(import_file: str):
"""Import a file with pycompwa and convert it to a `~pandas.DataFrame`."""
events = pwa.read_ascii_data(import_file)
frame = convert.events_to_pandas(
events=events, model=f"{SCRIPT_DIR}/files/kinematics_three.xml"
)
return frame
def import_events(weights: bool = False):
"""Import the data sample as `~.EventCollection`."""
if weights:
import_file = f'{SCRIPT_DIR}/files/ascii_weights.dat'
else:
import_file = f'{SCRIPT_DIR}/files/ascii_noweights.dat'
return pwa.read_ascii_data(import_file)
def _read_ascii_with_header(filename, particles=None):
"""Import ASCII file **with** header."""
event_collection = pwa.read_ascii_data(filename)
frame = convert.events_to_pandas(event_collection)
particles_in_frame = frame.pwa.particles
if isinstance(particles, list) \
and len(particles_in_frame) != len(particles):
raise exception.DataException(
f'The number of particles in argument particles ({particles}) '
'does not have the same number of particles as inferred from '
f'the ASCII header of file ({particles_in_frame})')
return frame