IR intensity difference with different number of cores

Hi, Axel,
Thanks for the reply, but I am not sure whether i fully understand what you are trying to say in terms of quantifying the statistical error. Do you mean that, say, if i have a trajectory of 2 ns, and a IR spectra based on the 2 ns trajectory, and then separate the 2 ns trajectory into N parts(N chunks), till the IR spectra based on each of the individual chunk is too noisy, then, calculate the difference of the intensity based on each chunk with respect to the intensity based on the original 2 ns trajectory, and determine the error bar. Am I understand you correctly?

Best Regard
jiasen Guo

Hi, Axel,
Thanks for the reply, but I am not sure whether i fully understand what you
are trying to say in terms of quantifying the statistical error. Do you mean
that, say, if i have a trajectory of 2 ns, and a IR spectra based on the 2
ns trajectory, and then separate the 2 ns trajectory into N parts(N chunks),
till the IR spectra based on each of the individual chunk is too noisy,
then, calculate the difference of the intensity based on each chunk with
respect to the intensity based on the original 2 ns trajectory, and
determine the error bar. Am I understand you correctly?

please save me the time and effort and recite to what has been text
book knowledge for over 25 years.

thanks,
     axel.