similar to: question about plsr() results

Displaying 20 results from an estimated 100 matches similar to: "question about plsr() results"

2011 Nov 30
1
Invalid number of components, ncomp
Error in mvr(Kd_nM ~ qsar, ncomp = 6, data = my, validation = "CV", method = "kernelpls") :   Invalid number of components, ncomp How I can fix this? [[alternative HTML version deleted]]
2003 Sep 29
2
parametric surfaces
Hi, does anyone know how to plot 3D parametric surface,e.g ellipsoid: x=a*cos(s)*cos(t), y=b*sin(s)*cos(t), z=sin(t); s in [0,2*pi], t in [-pi,pi]. Vytautas Maniusis, Vilnius University, Lithuania
2002 Dec 04
1
Interpreting canonical correlation (cancor) results
Hi, from what I understand about the canonical correlation function 'cancor', it looks for correlations in two sets of variables, each represented in matrix form. Right? Sounds exactly like what I need. I have tried the following but I am not sure how to interpret the results. AudioPCs <- c(ArTHarF0PCA$x[,2], ArTHarF1PCA$x[,2], ArTHarF2PCA$x[,2], ArTHarF3PCA$x[,2],
2011 Jul 25
1
Can't rename win7 machine in samba domain
Hello, Samba 3.5.8-68 on F15 64bit with all latest updates. Part of smb.conf file: set primary group script = /usr/sbin/usermod -g %g %u add user script = /usr/sbin/useradd -g 100 %u add group script = /usr/sbin/groupadd %g add user to group script = /usr/bin/gpasswd -a %u %g add machine script = /usr/sbin/useradd -d /var/lib/nobody -g 100 -s /bin/false -M %u delete user
2009 Dec 02
1
acl_tdb
Hello, How to manage acl from command line when using acl_tdb module?
2010 Mar 02
1
acl_tdb backup
Hello, What is simplest way to backup/restore acl's if using acl_tdb module? Thanks.
2004 May 24
2
Tramo-seats
Working - among other things- in the field of (short & long term) electricity forecast, we are now using too many & too expensive pieces of licensed software: SAS, SPSS, EViews. This "sedimentation" is due to the fact that my predecessors in the past used different consultant companies to manage each procedure. Having attended the useR2004! Conference with the aim of assessing
2011 Nov 25
1
plsr how to return my formula
Hi, I have experimental response (Y) and many (important or not) actions (X). I want to create model: Y = aX1 + bX2 + ... + eX5 (1) from few most important actions of course. As I understand I have to use plsr for this task. I learned read.table and plsr R functions and how to plot some results from them, but still do not understand how I can get (or construct) function I need (function 1)?
2005 Sep 04
2
Help: PLSR
Hello, I have a data set with 15 variables (first one is the response) and 1200 observations. Now I use pls package to do the plsr as below. trainSet = as.data.frame(scale(trainSet, center = T, scale = T)) trainSet.plsr = mvr(formula, ncomp = 14, data = trainSet, method = "kernelpls", model = TRUE, x = TRUE, y = TRUE) from the model, I wish to know the
2010 Feb 21
2
cross-validation in plsr package
Dear readers, can anyone give an example how to use cross-validation in the plsr package. I miss to find the number of factors proposed by cross-validation as optimum. Thank you Peter -- View this message in context: http://n4.nabble.com/cross-validation-in-plsr-package-tp1563815p1563815.html Sent from the R help mailing list archive at Nabble.com.
2011 May 12
1
Fw: Help with PLSR
Hi I am attempting to use plsr which is part of the pls package in r. I amconducting analysis on datasets to identify which proteins/peptides are responsible for the variance between sample groups (Biomarker Spoting) in a multivariate fashion. I have a dataset in R called "FullDataListTrans". as you can see below the structure of the data is 40 different rows representing a
2011 May 17
1
Help with PLSR with jack knife
Hi I am analysing a dataset of 40 samples each with 90,000 intensity measures for various peptides. I am trying to identify the Biomarkers (i.e. most significant peptides). I beleive that PLS with jack knifing, or alternativeley CMV(cross-model-validation) are multivariateThe 40 samples belong to four different groups. I have managed to conduct the plsr using the commands: BHPLS1 <-
2011 May 17
1
help with PLSR Loadings
Hi When I call for the loadings of my plsr using the command, x <- loadings(BHPLS1) my loadings contain variable names rather than numbers. >str(x) loadings [1:94727, 1:10] -0.00113 -0.03001 -0.00059 -0.00734 -0.02969 ... - attr(*, "dimnames")=List of 2 ..$ : chr [1:94727] "PCIList1" "PCIList2" "PCIList3" "PCIList4" ... ..$ : chr
2011 Jun 08
1
Help with plotting plsr loadings
Hi I am attempting to do a loadings plot from a plsr object. I have managed to do this using the gasoline data that comes with the pls package. However when I conduct this on my dataset i get the following error message. >plot(BHPLS1, "loadings", comps = 1:2, legendpos = "topleft", labels = "numbers", >xlab = "nm") Error in
2012 Oct 04
1
data structure for plsr
I am having a similar problem understanding the data structure of the "yarn" dataset described in the "[R] data structure for plsr" posts. I have spectroscopic data I'd like to run through a PLSR and have read the tutorial series, but still do not understand the data format required for the code to process my data. My current data structure consists of a .csv file read into
2009 May 07
1
I need your help about plsr
Hi, I need your help, so I send letter to you. I have a problem about plsr in pls package. I want to show how classfied or related each ohter samples, so I tried to use plsr and biplot. But, I failed. Because, I had to change data type of my sample. Unfortunately, I didn't know how change data type. I want you to help me about that. please, help me. I show you my sample data , my scripts
2011 May 13
1
PLSR error
Hi, this is my R-Script library(pls) file <- "C:\\TXT\\brix.txt" d <- as.matrix(read.table(file, header=T, sep=",", row.names = NULL)) plsdata <- data.frame(NIR=c(1:nrow(X))) plsdata$NIR <- I(d[,3:603]) plsdata$Brix <- d[,2] results <- plsr(Brix ~ NIR, data=plsdata) after the last string i have this error > results <- plsr(Brix ~ NIR, data=plsdata)
2007 May 25
2
R-About PLSR
hi R help group, I have installed PLS package in R and use it for princomp & prcomp commands for calculating PCA using its example file(USArrests example). But How I can use PLS for Partial least square, R square, mvrCv one more think how i can import external file in R. When I use plsr, R2, RMSEP it show error could not find function plsr, RMSEP etc. How I can calculate PLS, R2, RMSEP, PCR,
2005 Aug 27
1
PLSR: model notation and reliabilities
I'm new in both R and statistics. I "did my homework", I tried the archives and whatever I managed to get from the sources, but still I need assistance with the plsr package. I have a model with 2 core determinants D1 and D2, made by 3 indicators each (D1a,D1b,D1c and so on). Also I have 2 moderating variables (m1,m2), where m1 moderates D1 and m2 modarates D2. The dependent
2005 May 12
1
pls -- crossval vs plsr(..., CV=TRUE)
Hi, Newbie question about the pls package. Setup: Mac OS 10.3.9 R: Aqua GUI 1.01, v 2.0.1 I want to get R^2 and Q^2 (LOO and Leave-10-Out) values for each component for my model. I was running into a few problems so I played with the example a little and the results do not match up with the comments in the help pages. $ library(pls) $ data(NIR) $ testing.plsNOCV <- plsr(y ~ X, 6, data =