Displaying 20 results from an estimated 100 matches similar to: "constructing an lm() formula in a function"
2012 Jan 27
1
Overimposing one map in ssplot onto another
Hello!
I have 2 maps - both created in ssplot and both identical in terms of
outline. Is there any way to superimpose Map1 (which has black borders
between Canadian provinces) onto Map2 (which is also a map of Canada)?
Thanks a lot for your hints!
Dimitri
### A. Reading in Canada data at the province and then at the county level:
library(raster)
getData('ISO3') # Canada's code is
2009 Jan 19
1
candisc
Hello,
I have a question regarding the candisc package. My data are:
species three five
1 2.95 6.63
1 2.53 7.79
1 3.57 5.65
1 3.16 5.47
2 2.58 4.46
2 2.16 6.22
2 3.27 3.52
I put these in a table and then a linear model
>newdata <- lm(cbind(three, five) ~ species, data=rawdata)
and then do a candisc on them
>candata<-candisc(newdata)
2008 Dec 11
1
candisc plotting
Hello,
I have a file with two dependent variables (three and five) and one
independent variable. I do i.mod <- lm(cbind(three, five) ~ species,
data=i.txt) and get the following output:
Coefficients:
three five
(Intercept) 9.949 9.586
species -1.166 -1.156
I do a" i.can<-candisc(i.mod,data=i):
and get the following output:
Canonical Discriminant Analysis
2008 Dec 10
1
trouble loading candisc
Hello,
I am having trouble loading the package candisc onto my R distribution. I am
using 2.7.1-2. I do a "> install.packages("candisc"
and get the following output.
Warning in install.packages("candisc") :
argument 'lib' is missing: using '/usr/local/lib/R/site-library'
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk
2008 Jun 16
1
candisc() error message
Hi,
I am doing canonical discriminant analysis using candisc function from
the candisc package.
My input is a table of species distribution (columns = abundance of each
species in each sample) in samples that are split by categories (rows),
and I want to know whether each category is associated with a particular
set of species and their abundances.
I have 20 rows (samples) split into 6
2009 Mar 31
1
Package candisc
Hi listers,
I am working on an canonical discriminant analysis, but I am having some
trouble to use the CANDISC function... I just installed the last R version
and installed the package CANDISC... But, I am getting the following message
because about a permission:
The downloaded packages are in
C:\Users\Marcio\AppData\Local\Temp\Rtmpz2kFUm\downloaded_packages
updating HTML package descriptions
2010 Jul 29
0
[R-pkgs] heplots 0.9-3 and candisc 0.5-18 released to CRAN
I've just released the latest R-Forge versions of heplots 0.9-3 and
candisc 0.5-18 to CRAN.
They should appear there within a day or two.
== heplots
The heplots package provides functions for visualizing hypothesis tests
in multivariate linear models (MANOVA, multivariate multiple regression,
MANCOVA, etc.). They
represent sums-of-squares-and-products matrices for linear hypotheses
and for
2009 Dec 01
3
irregular problem on outlook + imap
Hi list,
my customer say me that "sometime" he has a problem with imap server
when he try to move a mail from a folder to another. The error are:
""" NO [TRYCREATE] Mailbox doesn't exist: folder.with.dots and spaces
and numbers"""
Like now I had connected to the server for create a "tcpdump | strings"
session and the results are:
vj8q OK
2013 Jan 29
3
how to suppress the intercept in an lm()-like formula method?
I'm trying to write a formula method for canonical correlation analysis,
that could be called similarly to lm() for
a multivariate response:
cancor(cbind(y1,y2,y3) ~ x1+x2+x3+x4, data=, ...)
or perhaps more naturally,
cancor(cbind(y1,y2,y3) ~ cbind(x1,x2,x3,x4), data=, ...)
I've adapted the code from lm() to my case, but in this situation, it
doesn't make sense to
include an
2008 Apr 18
0
new candisc package on CRAN
I'm happy to announce the candisc package, v 0.5-9, now on CRAN.
Generalized Canonical Discriminant Analysis
Description
This package includes functions for computing and visualizing
generalized canonical discriminant analyses for a multivariate linear
model. They are designed to provide low-rank visualizations of terms in
a mlm via the plot method and the heplots package.
The methods
2008 Apr 18
0
new candisc package on CRAN
I'm happy to announce the candisc package, v 0.5-9, now on CRAN.
Generalized Canonical Discriminant Analysis
Description
This package includes functions for computing and visualizing
generalized canonical discriminant analyses for a multivariate linear
model. They are designed to provide low-rank visualizations of terms in
a mlm via the plot method and the heplots package.
The methods
2008 Oct 29
2
sessionInfo() error
[Using R 2.7.2 on Windows XP]
After re-building our heplots package, I've begun to get the following
error from sessionInfo(),
even though it passes R CMD check and builds without errors:
> sessionInfo()
Error in x$Priority : $ operator is invalid for atomic vectors
In addition: Warning message:
In FUN(c("MASS", "heplots", "car", "rgl",
2018 May 26
0
TukeyHSD for multiple response
Hi Sergio
Doing those tests 30 times is going to give you a huge Type I error
rate, even if there was a function that did that. There is a reason
why TukeyHSD doesn't make it easy.
In general, if there are useful comparisons among the species, you are
better off setting up and testing contrasts than doing all-pairwise
Tukey tests.
Also, the PCA scores are ordered in terms of variance
2005 Jul 06
1
Help: Mahalanobis distances between 'Species' from iris
Dear R list,
I'm trying to calculate Mahalanobis distances for 'Species' of 'iris' data
as obtained below:
Squared Distance to Species From Species:
Setosa Versicolor Virginica
Setosa 0 89.86419 179.38471
Versicolor 89.86419 0 17.20107
Virginica 179.38471 17.20107 0
This distances above were obtained with proc
2006 Nov 09
1
Extracting the full coefficient matrix from a gls summary?
Hi,
I am trying to extract the coefficients matrix from a gls summary.
Contrary to the lm function, the command fit$coefficients returns
only the estimates of the model, not the whole matrix including the
std errors, the t and the p values.
example:
ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
group <-
2005 Jul 08
5
Help with Mahalanobis
Dear R list,
I'm trying to calculate Mahalanobis distances for 'Species' of 'iris' data
as obtained below:
Squared Distance to Species From Species:
Setosa Versicolor Virginica
Setosa 0 89.86419 179.38471
Versicolor 89.86419 0 17.20107
Virginica 179.38471 17.20107 0
These distances were obtained with proc 'CANDISC'
2012 Jan 18
4
R-Help
I am trying to create a frequency distribution and I am a bit confused.
Here are the commands I have entered:
> data <- read.csv(file="40609_sortedfinal.csv",head=TRUE,sep=",")
> NumberOfActionsByStatus = data$STATUS
> NumberOfActionsByUser = data$ETS_LOGIN
> NumberOfBidOffer = data$BID_OFFER
> NumberOfActionsByUser.freq = table(NumberOfActionsByUser)
>
2012 Nov 16
2
R-Square in WLS
Hi,
I am fitting a weighted least square regression and trying to compute
SSE,SST and SSReg but I am not getting SST = SSReg + SSE and I dont know
what I am coding wrong. Can you help please?
xnam <-colnames(X) # colnames Design Matrix
fmla1 <- as.formula(paste("Y ~",paste(xnam, collapse=
2014 Jul 30
2
listof
Dear R developers
A question about the class 'listof', defined in package 'stats'.
Other than its definition and use in the code for 'anova',
we can't see that the class 'listof' is used for anything else
(in recommended packages, or elsewhere).
In the spatstat package we have been using a 'listof'
to represent a list of spatial objects of the same
2018 May 25
2
TukeyHSD for multiple response
Dear all,
I'm testing the effect of species and sex in my sample by using the principal component scores of a PCA analysis.
I have 30 PCs and I tried to see if there is any significant difference from males to females, given that there is a significant effect of phylogeny (factor with several species).
I didi it like this:
Y<-PCA$pc.scores[,1:30]
fit <- manova(Y ~ sp*sex)