search for: unrot

...s to Mr.Liviu Androvic and Mr.Richard Rowe helped me in PCA. Because I have just learn R language in a few day so I have many problem. 1) I don't know why PCA rotation function not run although I try many times. Would you please hepl me and explain how to read the PCA map (both of rotated and unrotated) in a concrete example. 2) Where I can find document relate: Plan S(A), S(A*B), S(A)*B? Thanks alot. -- View this message in context: http://www.nabble.com/Principle-component-analysis-tp15846902p15846902.html Sent from the R help mailing list archive at Nabble.com.

Hi, I am puzzeled with a differing result of princomp in R and FACTOR in SPSS. Regarding the amount of explained Variance, the two results are the same. However, the loadings differ substantially, in the unrotated as well as in the rotated form. In both cases correlation matrices are analyzed. The sums of the squared components is one in both programs. Maybe there is an obvious reason, but I somehow fail to see it. Best Regards Andreas This is the output generated by R: pc<-princomp(dat[,-c(1,2)]...

...But I am having a problem when using Varimax for rotating loadings obtaines from a princomp (I use the cor = TRUE option): the variance across the components in the variables does not mantain. Let me explain it with an example in which the variances, which should be the same, are listed in both the unrotated and rotated models: Unrotated model: PC1 PC2 variance x1 0,627 -0,514 0,66 * x2 -0,759 0,068 0,58 x3 0,730 -0,337 0,65 x4 -0,494 -0,798 0,88 x5 -0,425...

Hello, I'm doing a pca analysis and get unrotated PCA results (using "pca"). I then used "varimax" to rotate the PCs, vload <- varimax(cproj,normalize=TRUE,eps=1e-5) #cproj is the "loadings" from "pca" and calculate the score coefficients with: coef <- solve(correlation matrix of original dat...

Hi all, is it possible to run factor analysis in R such that the routine returns - unstandardized factor scores (according to the original scale) - rotated factor scores (these may be standardized) So far I have only found the possibility to return standardised unrotated factor scores. Thank you very much, Ursula ==================================================== NFO Infratest Ursula Becker EX-A-MINE Centre Landsberger Str. 338 D - 80 687 M?nchen Germany Tel.: +49 89 5600 423 Fax: +49 89 5600 611 ursula.becker at nfoeurope.com www.ex-a-mine.com -----------...

...d on which decomposition method you are using, princomp uses eigen whereas prcomp use svd. What does Statistica use? -----Original Message----- From: Williams, Allyson Sent: Tuesday, 3 September 2002 10:20 AM To: r-help at stat.math.ethz.ch Subject: Hello, I'm doing a pca analysis and get unrotated PCA results (using "pca"). I then used "varimax" to rotate the PCs, vload <- varimax(cproj,normalize=TRUE,eps=1e-5) #cproj is the "loadings" from "pca" and calculate the score coefficients with: coef <- solve(correlation matrix of original dat...

...* 5/3 rect(x1 - xh/2, y1 - yh/2, x1 + xh/2, y1 + yh/2, col = "white") text(x1, y1, cha, cex = par("cex")) Now I would like to do the same with rotated text. I found two solutions: - modify the par("usr") - compute ratio to transform width and height computed on the unrotated text. These two solutions work for square graphic window (e.g. X11(), X11(width=3, height=3)..) But the two solutions does not work for rectangular windows: # does not works for rotated text using modif of par("usr") X11(height=4) plot(z) x1 <- 5 y1 <- 0 xusr <- par(&quo...

...abels ? can anyone see what might be going on ? it worked when i followed the archive using the simulated rnorm data generrated there. i've changed the naming method so that i'm using the labels command instead of the defaulted column names , so i wouldn't even mind getting them on unrotated because they might even fit now. if someone knows how to do that wqihout rotating, that;s worth a try maybe it has something do with that the rnorm data in the archive was ten values whereas i have 16 values ( or 32 if i do besides = T ) ? I don't know in depth what's really happenin...

What am I doing wrong? (please cc me when replying) yy <- 1:10 xx <- yy*2 xYplot(yy~xx,ylab="") #this plots as it should text(.4,5,expression(paste(log, frac(p(b),p(a)) ))) Error in text.default(0.4, 13, expression(paste(log, frac(p(b), p (a))))) : plot.new has not been called yet This is the case even when I write: xxyy <- xYplot(yy~xx,ylab="") xxyy <-

Dear R users: I'm wondering if it's possible to get the residual correlation matrix when using factanal. Since factanal assumes that the errors are normally distributed and independent (provided the factor model fits the data) this would be useful. Of course you would need to submit the data to the function to get the residuals (not just their correlation matrix), but it should be possible

hello, subsequently to a NMDS analysis (performed with metaMDS or isoMDS) is it possible to rotate the axis through a varimax-rotation? Thanks in advance. Bernd Panassiti

...rks. I'm using ArchLinux with the following nouveau packages: nouveau-drm 0.0.16_20100313-2 xf86-video-nouveau 0.0.15_git20100314-1 I use a NVIDIA GeForce Go 7400 with Turbo Cache My external screen has been rotated with xrandr --output VGA-1 --rotate left (I haven't tested this with an unrotated screen) I've tested this with the browsers Konqueror, Arora and Firefox. No Flash plugin installed. Elinks works fine ;) -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.

...%c = seteq %i.next, %n > br %c, label %exit, label %header > >exit: > ... > >The loop iteration count is %n. In this case, it means that _every_ >basic block is executed %n times. Your current version of reconstruction >seems to be okay for loops in this form. > >2) unrotated canonical loop (bb8 in your example): >The loop has only one backedge and an induction variable counting from 0 >with step 1. The only basic block that branches out of the loop is the >loop header. > >header: > %i = phi [ 0, %preheader ], [ %i.next, %body ] > ... > %c...

In version 0.63.0 for Win95, I can use text() to write into the left margin (to the left of the axis) as follows: > plot(0:10,0:10,pch="+") > text(c(1,0.5,0,-0.5,-1),1,"O") I see 5 "O" symbols at the expected position, two of which are left of the left axis. However, in version 0.64.0 for Solaris 2.5.1 on a Sparc/Ultra2, I only see three "O"

Hello, I need to do a principal component analysis with EQUAMAX-rotation. Unfortunately the function principal() I use normally for PCA does not offer this rotation specification. I could find out that this might be possible somehow with the package GPArotation but until now I could not figure out how to use this in the principal component analysis. Maybe someone can give an example on how to do

Dear all I'm unable to find an example of extracting the rotated scores of a principal components analysis. I can do this easily for the un-rotated version. data(mtcars) .PC <- princomp(~am+carb+cyl+disp+drat+gear+hp+mpg, cor=TRUE, data=mtcars) unclass(loadings(.PC)) # component loadings summary(.PC) # proportions of variance mtcars$PC1 <- .PC$scores[,1] # extract un-rotated scores of

Dear Prof.Adve and Bill, I deeply appreciate your comments and concerns. (Please forgive my late response. I've tried some more cases to make this issue) As Prof.Adve mentioned, I need to explain exactly what my problem is, but I have no good ability that I can explain it in this plain text space. For this reason, I made a .pdf file and linked it as follows:

Dear Users, I ran factor analysis using R and SAS. However, I had different outputs from R and SAS. Why they provide different outputs? Especially, the factor loadings are different. I did real dataset(n=264), however, I had an extremely different from R and SAS. Why this things happened? Which software is correct on? Thanks in advance, - TY #R code with example data # A little

...he typeinfo level, so convert them to be unique to the typelib. winex11.drv: Merge some common code. winex11.drv: Use XRenderCompositeText instead of XRenderCompositeString. gdi32: Pass an lpDx array to the driver if the escapement is non-zero, so that the driver has access to the unrotated advance widths. Hwang YunSong(???) (1): xcopy: New Korean resource. Jacek Caban (6): mshtml: Wrap nsIExternalProtocolHandler. mshtml: Don't call start_binding if we use necko to load the page. mshtml: Improve some exec command stubs. mshtml: Fixed AsyncOpen i...

...ure. gdiplus: Add tests for passing negative strides to GdipCreateBitmapFromScan0. ole32: Silence FIXME from CoGetContextToken stub. ntdll: Use our own implementation of atoi and atol. gdi32: Add a test for font orientation. gdi32: Glyph advances should be measured for unrotated characters. Luis Busquets (4): d3dx9: Implement D3DXGetShaderSize(). d3dx9: Add a test for D3DXGetShaderSize(). d3dx9: Implement D3DXGetShaderVersion(). d3dx9: Add a test for D3DXGetShaderVersion(). Maarten Lankhorst (11): quartz: Fix incorrect use of mtCurrent i...