Prev: Matlab version for Windows Vista and Windows 7
Next: Types of video file formats in Mat lab
From: Rupika Bandara on 10 Jul 2010 04:20
Hi All,
I want to reduce my data set using princomp function in MATLAB. I have 16x150 data set. (16 no of observations and 150 dimensions of the observations) After using princomp function I can get 150x150 values(if raw data matrix is a, I used b=princomp(a) to get PCA). Then I do not know how to get final value by this 150x150 matrix. Can anyone help me?
From: us on 10 Jul 2010 18:18
"Rupika Bandara" <rupika23(a)yahoo.com> wrote in message <i19ag3$fu$1(a)fred.mathworks.com>...
> Hi All,
> I want to reduce my data set using princomp function in MATLAB. I have 16x150 data set. (16 no of observations and 150 dimensions of the observations) After using princomp function I can get 150x150 values(if raw data matrix is a, I used b=princomp(a) to get PCA). Then I do not know how to get final value by this 150x150 matrix. Can anyone help me?

what do you mean by ...final value... (?)...
- a printer ready thesis...
- a pizza quattro stagioni, which seems more appropriate given your # of dimensions...

us
From: Rupika Bandara on 10 Jul 2010 18:45
"us " <us(a)neurol.unizh.ch> wrote in message <i1arit$emd$1(a)fred.mathworks.com>...
> "Rupika Bandara" <rupika23(a)yahoo.com> wrote in message <i19ag3$fu$1(a)fred.mathworks.com>...
> > Hi All,
> > I want to reduce my data set using princomp function in MATLAB. I have 16x150 data set. (16 no of observations and 150 dimensions of the observations) After using princomp function I can get 150x150 values(if raw data matrix is a, I used b=princomp(a) to get PCA). Then I do not know how to get final value by this 150x150 matrix. Can anyone help me?
>
> what do you mean by ...final value... (?)...
> - a printer ready thesis...
> - a pizza quattro stagioni, which seems more appropriate given your # of dimensions...
>
> us

Should I multiply 150x150 matrix by matrix a (16*150) to get values according to 16 observations? Otherwise, how can I find values corresponding to 16 observations separately?
From: us on 10 Jul 2010 20:11
"Rupika Bandara" <rupika23(a)yahoo.com> wrote in message <i1at5g$iq2$1(a)fred.mathworks.com>...
> "us " <us(a)neurol.unizh.ch> wrote in message <i1arit$emd$1(a)fred.mathworks.com>...
> > "Rupika Bandara" <rupika23(a)yahoo.com> wrote in message <i19ag3$fu$1(a)fred.mathworks.com>...
> > > Hi All,
> > > I want to reduce my data set using princomp function in MATLAB. I have 16x150 data set. (16 no of observations and 150 dimensions of the observations) After using princomp function I can get 150x150 values(if raw data matrix is a, I used b=princomp(a) to get PCA). Then I do not know how to get final value by this 150x150 matrix. Can anyone help me?
> >
> > what do you mean by ...final value... (?)...
> > - a printer ready thesis...
> > - a pizza quattro stagioni, which seems more appropriate given your # of dimensions...
> >
> > us
>
> Should I multiply 150x150 matrix by matrix a (16*150) to get values according to 16 observations? Otherwise, how can I find values corresponding to 16 observations separately?

well...
NO... ML would NOT digest this approach lightly - for several reasons...
at this point, most CSSMers get the impression that you ought to get back to the story-board and THINK before you DO more damage to academia...

us
From: Peter Perkins on 12 Jul 2010 08:52
On 7/10/2010 6:45 PM, Rupika Bandara wrote:
> Should I multiply 150x150 matrix by matrix a (16*150) to get values
> according to 16 observations? Otherwise, how can I find values
> corresponding to 16 observations separately?

Rupika, it may be that you want the _second_ output from PRINCOMP, but
it's pretty hard to tell from your description.
 |  Next  |  Last
Pages: 1 2
Prev: Matlab version for Windows Vista and Windows 7
Next: Types of video file formats in Mat lab