well the only plot with no axes is plot 3 ... plot 3 is the same as 2 (Ids versus Vds) except it is at Vgs=0.25 instead of Vgs=0.5 ...

My question though does not depend on the plots .. I am asking whether I can use the same nc file with the initial calc completed, to compute transmission for many different biases, different Vds, different Vgs ... for example for the vds sweep, i save the object ids as biasSweep1, 2, 3, 4, 5 .... then i use a different Vds and/or Vgs... and save over it .. the question is, will the nc file or the initial calc (which I am reading in , using update() and saving again) get messed up by doing this?