Last column in input file is not read in

[lynnamon]

Thanks for making the code accessible! I found a potential bug in the '_readHeader function in D3EUtil.py. The number of columns are enumerated by the number of tabs in the first row but, typically, the row ends with the last label, not a tab, so the second group is always one short of the number of columns in the file unless you insert a tab at the end of the header file.