JaySLee

Thanks for the elaborate response! I'll investigate your test files further when I have a chance. In the mean time, attached is my test file where the lnt_read omits the...

Hi Dirk, After some investigation, I found that numpy arrays have a flag as to whether it is C-contiguous (row major) or Fortran contiguous (column major): arr.flags, arr.flags.c_contiguous, arr.flags.f_contiguous ....