source: sasview/src/sas/perspectives/fitting/utils.py @ 2df0b74

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload
Last change on this file since 2df0b74 was 79492222, checked in by krzywon, 10 years ago

Changed the file and folder names to remove all SANS references.

  • Property mode set to 100644
File size: 694 bytes
RevLine 
[f7ef313]1"""
2Module contains functions frequently used in this package
3"""
4import numpy
5
[f32d144]6
[f7ef313]7def get_weight(data, is2d, flag=None):
8    """
9    Received flag and compute error on data.
10    :param flag: flag to transform error of data.
11    :param is2d: flag to distinguish 1D to 2D Data
12    """
13    weight = None
14    if is2d:
[f32d144]15        dy_data = data.err_data
[f7ef313]16        data = data.data
17    else:
18        dy_data = data.dy
19        data = data.y
20    if flag == 0:
[7ee79cb]21        weight = numpy.ones_like(data)
[f7ef313]22    elif flag == 1:
23        weight = dy_data
24    elif flag == 2:
[f7f6886]25        weight = numpy.sqrt(numpy.abs(data))
[f7ef313]26    elif flag == 3:
27        weight = numpy.abs(data)
[f32d144]28    return weight
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