vsaase

File: crash-20151003-165858-brain-b0_avg.pklz
Node: hmc_sdc_ecc.eddy_correct.b0_avg
Working directory: /tmp/tmpyq3yMf/hmc_sdc_ecc/eddy_correct/b0_avg


Node inputs:

function_str = S'def b0_average(in_dwi, in_bval, max_b=10.0, out_file=None):\n    """\n    A function that averages the *b0* volumes from a DWI dataset.\n    As current dMRI data are being acquired with all b-values > 0.0,\n    the *lowb* volumes are selected by specifying the parameter max_b.\n\n    .. warning:: *b0* should be already registered (head motion artifact should\n      be corrected).\n\n    """\n    import numpy as np\n    import nibabel as nb\n    import os.path as op\n\n    if out_file is None:\n        fname, ext = op.splitext(op.basename(in_dwi))\n        if ext == ".gz":\n            fname, ext2 = op.splitext(fname)\n            ext = ext2 + ext\n        out_file = op.abspath("%s_avg_b0%s" % (fname, ext))\n\n    imgs = np.array(nb.four_to_three(nb.load(in_dwi)))\n    index = b0_indices(in_bval, max_b=max_b)\n    b0s = [im.get_da