Data Loaders

qef.io.loaders.histogram_to_point_data(values)

Transform histogram(s) to point data

Parameters:values (ndarray) – Array with histogram data Returns:Array with point data Return type:ndarray

qef.io.loaders.load_dave(file_name, to_meV=True)

Parameters:

• file_name (str) – Path to file
• to_meV (bool) – Convert energies from micro-eV to mili-eV

Returns:

keys are q(momentum transfer), x(energy or time), y(intensities), and errors(e)

Return type:

dict

qef.io.loaders.load_nexus(file_name)

Parameters:file_name (str) – Absolute path to file

qef.io.loaders.load_nexus_processed(file_name)

Load data from a Mantid Nexus processed file

Parameters:file_name (str) – Path to file Returns:keys are q(momentum transfer), x(energy or time), y(intensities), and errors(e) Return type:dict

qef.io.loaders.search_attribute(handle, name, ignore_case=False)

Find HDF5 entries containing a particular attribute

Parameters:

• handle – Root entry from which to start the search
• name (str) – Regular expression pattern to search in attributes’ names

Returns:

All entries with a matching attribute name. Each entry of the form (HDF5-instance, (attribute-key, attribute-vale))

Return type:

list