combineDWIdata(x1, x2, s0strategy = "first")"dtiData""dtiData"s0strategy="first" copies the S0 images from object x1,
s0strategy="second" copies the S0 images from object ddim in both objects is identical. Also slots voxelext,
orientation and rotation should be indentical.dtiData,
readDWIdata,
dtiData ,
subsetg