Re: [gmx-users] Dihedral angle autocorrelation function - g_chi function mismatch

2015-03-13 Thread atanu das
Thanks David for the clarifications. I really appreciate it.Atanu On Friday, 13 March 2015 2:07 AM, David van der Spoel sp...@xray.bmc.uu.se wrote: On 2015-03-13 00:30, atanu das wrote: Hi David, I have checked both the codes, g_angle.c and g_chi.c, and the same Cos function is

Re: [gmx-users] Dihedral angle autocorrelation function - g_chi function mismatch

2015-03-13 Thread David van der Spoel
On 2015-03-13 00:30, atanu das wrote: Hi David, I have checked both the codes, g_angle.c and g_chi.c, and the same Cos function is used in both the cases (please correct me if I am wrong). g_angle analysis: I have used the following command to calculate the average autocorrelation function

Re: [gmx-users] Dihedral angle autocorrelation function - g_chi function mismatch

2015-03-12 Thread David van der Spoel
On 2015-03-12 19:03, atanu das wrote: Hi again, Just to add a note --- It seems that g_angle can also calculate the dihedral angle autocorrelation function with the option -oc. Does this program use the same functional form as g_chi i.e. is the functions defined as --- C(t) = cos(theta(tau))

Re: [gmx-users] Dihedral angle autocorrelation function - g_chi function mismatch

2015-03-12 Thread atanu das
Hi again, Just to add a note --- It seems that g_angle can also calculate the dihedral angle autocorrelation function with the option -oc. Does this program use the same functional form as g_chi i.e. is the functions defined as --- C(t) = cos(theta(tau)) cos(theta(tau+t)) ThanksAtanu  On

Re: [gmx-users] Dihedral angle autocorrelation function - g_chi function mismatch

2015-03-12 Thread atanu das
Hi David, I have checked both the codes, g_angle.c and g_chi.c, and the same Cos function is used in both the cases (please correct me if I am wrong).   g_angle analysis: I have used the following command to calculate the average autocorrelation function (ACF) over all the backbone phi psi

[gmx-users] Dihedral angle autocorrelation function - g_chi function mismatch

2015-03-11 Thread atanu das
Hi All, As Prof. David van der Spoel referred in the last communication about how the dihedral angle autocorrelation function is calculated via the program g_chi, I have a query regarding the differences that I found between the function mentioned in the article (Biophys. J. 72 pp. 2032-2041