"Christopher McDonald" <chris. wrote:
> "Caijun Zhao" wrote:
> > thanks a lot for the advice! I just check my data again, turns out there are some invalid > > characters around 1600th, and it works well after fixing this problem :)
> Thanks for that.> Was there something weird in the input data file itself that prevented it from being plotted, or > just that you were processing/formatting it incorrectly?
well, it's me cutting the wrong field of data. because some data formats are different with others, and
i did't notice that difference which makes some data are missing after i cut the same field. :)