Re: [R] reviewer comment

2013-03-15 Thread S Ellison
> My question: what does it mean asymmetry distribution could > affect PCA ? and also outliers could affect factors? It means what it says. PCA will be affected by asymmetry and outliers will affect the principal components (sometimes loosely called 'factors') In particular an extreme outl

Re: [R] reviewer comment

2013-03-15 Thread John Kane
ssage- From: mohamed.laj...@inserm.fr Sent: Fri, 15 Mar 2013 14:38:10 +0100 To: jrkrid...@inbox.com Subject: Re: [R] reviewer comment Thanks John for your reply. the reviewer comment: asymmetric distribution could affect Principal Component Analysis results, symmetry of distribution s

Re: [R] reviewer comment

2013-03-15 Thread Mohamed Lajnef
...@inserm.fr >> Sent: Fri, 15 Mar 2013 11:26:45 +0100 >> To: r-help@r-project.org >> Subject: [R] reviewer comment >> >> Could someone explain me this sentence reviewer below in blod underlined, >> >> Authors should try to be more detailed in the desc

Re: [R] reviewer comment

2013-03-15 Thread John Kane
> -Original Message- > From: mohamed.laj...@inserm.fr > Sent: Fri, 15 Mar 2013 11:26:45 +0100 > To: r-help@r-project.org > Subject: [R] reviewer comment > > Could someone explain me this sentence reviewer below in blod underlined, > > Authors should try to be more det

[R] reviewer comment

2013-03-15 Thread Mohamed Lajnef
Could someone explain me this sentence reviewer below in blod underlined, Authors should try to be more detailed in the description of analyses: some of the details reported in the "Principal components analysis" paragraph (Results) should be moved here. Because a highly_/*asymmetric distribution