Re: [gmx-users] principal component analysis

2013-09-27 Thread Tsjerk Wassenaar
Hi Prathiba, I think you should have a look at the "Functional Mode Analysis" method from Bert de Groot's lab. Cheers, Tsjerk On Sat, Sep 28, 2013 at 8:13 AM, pratibha kapoor wrote: > Dear all users > > I would like to calculate pc loadings for various integrated factors in the > form of foll

[gmx-users] principal component analysis

2013-09-27 Thread pratibha kapoor
Dear all users I would like to calculate pc loadings for various integrated factors in the form of following sample table: Integrated Factors PC1 PC2 PC3 PC4 PC5 PC6 PC7 PC8 PC9 PC10 Total non polar surface area 0.60 -0.07 -0.76 -0.11 0.08 0.05 -0.16 0.08 -0.01 0.02 Native

Re: [gmx-users] principal component analysis

2013-09-27 Thread Tsjerk Wassenaar
Hi Pratibha, The table is all garbled, and your description insufficiently clear for us to form a mental picture of what you want, what you've tried to get that, where it goes wrong, or where you get stuck, and how we can help you on the right track again. Cheers, Tsjerk On Fri, Sep 27, 2013 a

[gmx-users] principal component analysis

2013-09-27 Thread pratibha kapoor
Dear all gmx users I would like to calculate pc loadings for various integrated factors in the form of following sample table: Integrated factorsPC1PC2PC3 PC4PC5PC6PC7PC8 PC9PC10Total nonpolar surface area0.60 -0.07-0.76-0.11-0.060.11 0.05-0.160.06-0.02Chain exposed area 0.92 -0.14-0.050.12 0.230.

[gmx-users] Principal Component Analysis (PCA)

2012-11-25 Thread harshaljain950
hi all, Can we plot RMSF versus atom numbers using eigenvectors of a different simulation and trajectory of another simulation. I know we can plot RMSF versus atom numbers using the eigenvectors and trajectory of a same simulation using g_anaeig Thanks in advance -- View this message in contex

Re: [gmx-users] Principal Component Analysis

2007-08-13 Thread Antonio Baptista
On Mon, 13 Aug 2007, Matthias Waegele wrote: Hello, I have a question concerning principal component analysis. In principal component analysis (PCA) it is assumed that the coordinates along each degree of freedom are Gaussianly distributed. If the data does not follow a normal distribution, P

[gmx-users] Principal Component Analysis

2007-08-13 Thread Matthias Waegele
Hello, I have a question concerning principal component analysis. In principal component analysis (PCA) it is assumed that the coordinates along each degree of freedom are Gaussianly distributed. If the data does not follow a normal distribution, PCA may not identify the correct principal modes s

[gmx-users] principal component analysis

2006-04-03 Thread yoshizawa006
Dear David, thank you ver much! As a matter of fact, g_angle (3.3) is working perfectly well! It was a stupid error of mine!! Sorry for the inconvenience... Best wishes! Maki Yoshizawa     Celebrate Yahoo! JAPAN 10th Anniversary ___ gmx-users mailing l

Re: [gmx-users] principal component analysis

2006-04-03 Thread David van der Spoel
[EMAIL PROTECTED] wrote: Dear David, thank you very much for your reply! Indeed I have used -type dihedral. Could it be, the problem lies in the [].tpr and [].xtc files? I mean, which subset of atoms must I choose in those files? (This very part of the previous discussion was obscure to me!)

Re: [gmx-users] principal component analysis

2006-04-02 Thread yoshizawa006
Dear David, thank you very much for your reply! Indeed I have used -type dihedral. Could it be, the problem lies in the [].tpr and [].xtc files? I mean, which subset of atoms must I choose in those files? (This very part of the previous discussion was obscure to me!) Best wishes! Maki Yoshiza

Re: [gmx-users] principal component analysis

2006-04-02 Thread David van der Spoel
[EMAIL PROTECTED] wrote: Hello, I would like to use PCA analysis in the dihedral space. Despite having read the topics related to this issue in the GROMACS page I am not quite sure how to accomplish this :-) The -or option in the g_angle (version 3.3) seems not to be working. I am already u

[gmx-users] principal component analysis

2006-04-02 Thread yoshizawa006
Hello, I would like to use PCA analysis in the dihedral space. Despite having read the topics related to this issue in the GROMACS page I am not quite sure how to accomplish this :-) The -or option in the g_angle (version 3.3) seems not to be working. I am already using an index file as sugested i