search for: pcr

Hello! I need help to use the package pls.pcr in R. I installed R in an IRIX 6.5, using the version of R 0.64.1 from sgifreeware(I didn't get to install the newest version using make). I need to use the package pls.pcr and when I give the command: # R R : Copyright 1999, The R Development Core Team Version 0.64.1 (May 8, 1999) R...

...TPM drivers and tools from IBM site: http://www.research.ibm.com/gsal/tcpa/tpm-1.1b.tar.gz compiled and used the following command #./tcpa_demo --------------------------------------------- [root@localhost examples]# ./tcpa_demo TPM successfully reset TPM version 1.2.0.0 <http://1.2.0.0> 24 PCR registers are available PCR-00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 PCR-01: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 PCR-02: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 PCR-03: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 PCR...

Hi, Currently I have a dataset of 2400*408. And I would like to apply PCR method to study the any correlation between the tests. My current data is in data.frame and I have formed horizontal(1-407) to be the exact data, and (408) to be my results data(Yes and No) I have also binarized these Yes and No to 1 and -1s. However, when I refer to PCR manual on R, the example o...

...nse variable is in the last column of the "vol" data frame and my dependent variables are in columns 1 through 11. To familiarize myself with this approach I have utilized the NIR data set (included in the pls Package). I get the following command to work with the NIR data set: NIR.pcr <- pcr(y ~ X,6,data=NIR,validation="CV") However, when I run the following script which effectively substitutes my data set (& modify variable names accordingly) into the above equation: y <- vol[,12] X <- vol[,1:11] ans.pcr <- pcr(y ~ X,6,data=vol,validation="CV&q...

I intend to port an R project from Linux to Windows. It involves C code that is loaded via dyn.load(). I could manage to produce a 'dll' File using cygwin which seems to be o.k. Now, using dyn.load("pcr.dll") i get: Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared library "c:/cygwin/home/pingu/rt-pcr/pcr.dll": LoadLibrary failure: Invalid access to memory location. Besides modifying the makefile no changes have been made to the source cod...

Hi everyone, I?m trying to do a spaghetti plot and I know I?m doing all wrong, It must be. What I need: 15 subjects, each with measurements over 5 different times (t1, ..., t5), and the variable that I need to represent in the spaguetti plot is given by: PCR = b0 + b1 * ti + epsilon B0, - baseline of each subject B1 - trajectory of each subject over time (so multiply by t) Epsilon - error associated with each subject Regression model with mixed effects. Thus, I generated b0, b1, epsilon and time created sequence. But I need to do spaguetti plot of...

...ameref.sty (/usr/share/texmf-texlive/tex/latex/oberdiek/refcount.sty)) (./GLMsData-manual.out) (./GLMsData-manual.out) (/usr/share/texmf-texlive/tex/latex/psnfss/t1phv.fd) (./GLMsData-manual.toc [1{/var/lib/texmf/fonts/map/pdftex/updmap/pdftex.map}] [2]) (/usr/share/texmf-texlive/tex/latex/psnfss/t1pcr.fd) Underfull \vbox (badness 1014) has occurred while \output is active [3] [4] [5] [6] Overfull \hbox (51.62097pt too wide) in paragraph at lines 190--190 \T1/pcr/m/n/10 NorthWest\T1/ptm/m/n/10 , \T1/pcr/m/n/10 Scotland\T1/ptm/m/n/10 , \T1/pcr/m/n/10 SouthEast\T1/ptm/m/n/10 , \T1/pcr/m/n/10 SouthW...

Hi, I want to calculate PLS package in R. Now I want to calculate R, MSEP, RMSEP and R2 of PLSR and PCR using this. I also add this in library of R. How I can calculate R, MSEP, RMSEP and R2 of PLSR and PCR in R. I s any other method then please also suggest me. Simply I want to calculate these value. Thanking you. -- Nitish Kumar Mishra Junior Research Fellow BIC, IMTECH, Chandigarh, India E-Mail A...

How do you install a package from CRAN ? I want to install pls.pcr, so I have downloaded pls.pcr_0.1.1.tar.gz but when I try to install it using the install package(s) from local zip file(s) option it says : > install.packages(choose.files('',filters=Filters[c('zip','All'),]), .libPaths()[1], CRAN = NULL) Error in file(file, "r&q...

...eryone, > > I?m trying to do a spaghetti plot and I know I?m doing all wrong, It must > be. > > What I need: > > 15 subjects, each with measurements over 5 different times (t1, ..., t5), > and the variable that I need to represent in the spaguetti plot is given by: > > PCR = b0 + b1 * ti + epsilon > > B0, - baseline of each subject > B1 - trajectory of each subject over time (so multiply by t) > Epsilon - error associated with each subject > > Regression model with mixed effects. > > Thus, I generated b0, b1, epsilon and time created sequence....

Dear all, I found pls.pcr package will give different results if the data are centered and scaled using scale(). I am not sure about when I should scale my data, and whether the dependent variable should be scaled. If the dependent variable is scaled, how I give a prediction to the real data? I appreciate for any suggesti...

Dear list I am using the mvr function of the package pls.pcr to compute PLS resgression using a X matrix of gene expression variables and a Y matrix of medical varaibles. I would like to obtain the R2 (sum of squares captured by the model) and Q2 (proportion of total sum of squares captured in leave-one-out cross validation) of the model. I am not sure i...

...am doing I have found that the values produced are nearly of the same magnitude but of opposite sign. When I use the example data (sensory) I find this result reproduced. I am prepared to work this through but I have a feeling that there could be a possible error in the code. (?!) > sens.pcr$loadings Comp 1 Comp 2 Comp 3 Comp 4 yellow 75.186621 -0.4780473 3.212149 1.750123 green -90.490256 8.5880530 1.634961 1.042239 brown -2.861241 -11.3600509 -15.920789 -1.105799 glossy 13.347090 19.3103902 -3.121693 2.781282 transp 20.126987 24.0653312 -6....

Dear R-helpers, Has anybody ever tried to compare pls regression outputs from the pls.pcr R-package developped by Wehrens with outputs from the Unscrambler software developped by CAMO company ? I find very different outputs and wonder if this comes from differences between methods/algorithms SIMPLS (pls.pcr) and PLS1 (Unscrambler). Arnaud ************************* Arnaud DOWKIW Depart...

Hey all, i have a class. class ( <$call1> ) if ip_dst == 10.100.1.6 && tcp_dport == 22 if ip_src == 10.100.1.4 && tcp_sport == 22 ; Now when i apply this traffic TO 6 on port 22 is indeed limited to the speed i specify BUT it doesn''t seem to take the src into account at all. If i change the src to anything, even an address that

Hello all, I have generated a principal components regression model using the pcr() function from the PLS package (R version 2.12.0). I am getting a "non-conformable arguments" error when I try to use the predict() function on new data, but only when I try to read in the new data from a separate file. More specifically, when my data looks like this #########training...

What version of R, what version of pls.pcr, and on what OS? Have you checked whether your versions of software are up to date? I get: > n <- 1350 > p <- 180 > y <- rnorm(n) > x <- matrix(sample(0:1, n*p, replace=TRUE), n, p) > fit <- mvr(x, y, method="SIMPLS", validat="none", ncomp=2) &gt...

Dear list members, I would like to ask two questions, although the second one must have been answered a thousand times. 1) is there a simple way to estimate the influence of individual variables in PCR and PLS models? What I have in mind is a way to rank the variables according to their influence, using some numerical value of a statistic. 2) what is the proper way to cite a CRAN package? How should I cite the authors of the package? Thank you very much in advance. K. Kachrimanis ---

Dear all, I am using different multiple regression models (OLS and principal component regression (PCR)) to make prediction of my test set. And those models come from the same training set, except that the number of variables or descriptors (columns of X) used in OLS is less than those used in PCR. And I use square correlation coefficient (r^2) and root mean square to see the relationship between m...

I don't know the details of pls (in the pls.pcr package, I assume), but if you use validation="CV", that says you want to use CV to select the best number of components. Then why would you specify ncomp as well? Andy > From: ryszard.czerminski at pharma.novartis.com > > When I try to use ncomp parameter in pls procedure I...