Datasaving Examples

%matplotlib nbagg
from importlib import reload

import numpy as np
from qcodes.station import Station

import qcodes_loop.data.data_set
from qcodes_loop.loops import Loop

Logging hadn't been started.
Activating auto-logging. Current session state plus future input saved.
Filename       : C:\Users\Jens-Work\.qcodes\logs\command_history.log
Mode           : append
Output logging : True
Raw input log  : False
Timestamping   : True
State          : active
Qcodes Logfile : C:\Users\Jens-Work\.qcodes\logs\201004-29284-qcodes.log

import logging
import sys

# Create logger
logger = logging.getLogger()
logger.setLevel(logging.DEBUG)

# Create STDERR handler
handler = logging.StreamHandler(sys.stderr)
# ch.setLevel(logging.DEBUG)

# Create formatter and add it to the handler
formatter = logging.Formatter('%(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)

# Set STDERR handler as the only handler
logger.handlers = [handler]

from qcodes_loop.data import hdf5_format

reload(hdf5_format)
h5fmt = hdf5_format.HDF5Format()

Start a loop and generate data from dummy instruments

station = Station()

from qcodes.instrument_drivers.mock_instruments import MockParabola

station.add_component(MockParabola(name='MockParabola'))

qcodes.instrument.base - DEBUG - [MockParabola(MockParabola)] Error getting or interpreting *IDN?: ''

'MockParabola'

loop = Loop(station.MockParabola.x[-100:100:20]).each(station.MockParabola.skewed_parabola)
data_l = loop.run(name='MockParabola_run', formatter=qc.data.gnuplot_format.GNUPlotFormat())

qcodes.data.data_set - DEBUG - Attempting to write
qcodes.data.gnuplot_format - DEBUG - Attempting to write the following group: MockParabola_x_set
qcodes.data.gnuplot_format - DEBUG - Cannot match save range, skipping this group.
qcodes.data.data_set - DEBUG - Finalising the DataSet. Writing.
qcodes.data.gnuplot_format - DEBUG - Attempting to write the following group: MockParabola_x_set
qcodes.data.gnuplot_format - DEBUG - Wrote header to file
qcodes.data.gnuplot_format - DEBUG - Wrote to file from 0 to 10

Started at 2020-10-04 11:50:36
DataSet:
   location = 'data/2020-10-04/#001_MockParabola_run_11-50-36'
   <Type>   | <array_id>                   | <array.name>    | <array.shape>
   Setpoint | MockParabola_x_set           | x               | (10,)
   Measured | MockParabola_skewed_parabola | skewed_parabola | (10,)
Finished at 2020-10-04 11:50:36

reload(hdf5_format)
h5fmt = hdf5_format.HDF5Format()
loop = Loop(station.MockParabola.x[-100:100:20]).loop(
    station.MockParabola.y[-100:50:10]).each(station.MockParabola.skewed_parabola)
data_l = loop.run(name='MockParabola_run', formatter=h5fmt)

qcodes.data.data_set - DEBUG - Attempting to write
qcodes.data.data_set - DEBUG - Finalising the DataSet. Writing.

Started at 2020-10-04 11:50:36
DataSet:
   location = 'data/2020-10-04/#002_MockParabola_run_11-50-36'
   <Type>   | <array_id>                   | <array.name>    | <array.shape>
   Setpoint | MockParabola_x_set           | x               | (10,)
   Setpoint | MockParabola_y_set           | y               | (10, 15)
   Measured | MockParabola_skewed_parabola | skewed_parabola | (10, 15)
Finished at 2020-10-04 11:50:36

from importlib import reload

from qcodes_loop.data import hdf5_format

reload(hdf5_format)
h5fmt = hdf5_format.HDF5Format()
data2 = qcodes_loop.data.data_set.DataSet(location=data_l.location, formatter=h5fmt)
data2.read()