similar to: linear model with similar response predictor

Displaying 20 results from an estimated 10000 matches similar to: "linear model with similar response predictor"

2013 Jan 26
2
confidence / prediction ellipse
Hi, I'm using the R library(car) to draw confidence/prediction ellipses in a scatterplot. >From what i understood the ellipse() function return an ellipse based parameters: shape, center, radius . If i read dataEllipse() function i can see how these parameters are calculated for a confidence ellipse. ibrary(car) a=c(12,12,4,5,63,63,23) b=c(13,15,7,10,73,83,43) v <-
2013 Nov 06
3
Basic question: why does a scatter plot of a variable against itself works like this?
Hello all, I just noticed the following behavior of plot: x <- c(1,2,9) plot(x ~ x) # this is just like doing: plot(x) # when maybe we would like it to give this: plot(x ~ c(x)) # the same as: plot(x ~ I(x)) I was wondering if there is some reason for this behavior. Thanks, Tal ----------------Contact Details:------------------------------------------------------- Contact me:
2010 Feb 23
1
how to assess the significance of regression between a set of response and predictor variables
Dear list, I have been using multivariate multiple regression (MMR) in the form lm(Y~X) where Y and X are matrices of response and predictor variables. I know that summary(mlm.object) would give the usual lm statistics for each response variable separately and that anova.mlm(mlm.object) will give the analysis of variance table of the mlm object. However, anova.mlm (also manova(mlm.object))
2012 May 07
0
Ranked predictor and response variable analysis
Hello, I have an experimental design where I would like to use separate ranking events to predict an independent ranking event. I have been using function clmm in the ordinal library but now realize that I am violating one of the assumptions. I have included a subset of the data. I am looking at how undergraduate students perceive the architecture and biological correctness of box and arrow
2005 Jan 12
4
"model.response" error
When I installed R 2.0.1 (replacing 1.9.0) for Windows, a code using "model.response" began acting up. Here are the first several lines of a code I had been tweaking for a spatial model (the code is mostly that of Roger Bivand--I am adapting it to a slightly different data structure and the problem I'm sure is with my changes, not his code). <command name> <- function
2010 Sep 27
1
Variation of predictor of linear model
Hi folks, I use lm to run regression and I don't know how to predict dependent variable based on the model. I used predict.lm(model, newdata=80), but it gave me warnings. Also, how can I get the variance of dependent variable based on model. Thanks. [[alternative HTML version deleted]]
2012 Jul 23
1
MANOVA polynomial contrasts
Dear all, I am quite new to R and I am having trouble writing the polynomial contrasts for an ordinal factor in MANOVA. # I have a model such as this fit<-manova(cbind(Y1,Y2,Y3)~Groups,data=Events) # where groups is an ordinal factor with 4 levels # how to set polynomial contrasts for the "Groups" factor ? Thank you very much in advance for any help! Best regards, Mauro -- Dr.
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
2007 Nov 28
2
fit linear regression with multiple predictor and constrained intercept
Hi group, I have this type of data x(predictor), y(response), factor (grouping x into many groups, with 6-20 obs/group) I want to fit a linear regression with one common intercept. 'factor' should only modify the slopes, not the intercept. The intercept is expected to be >0. If I use y~ x + factor, I get a different intercept for each factor level, but one slope only if I use y~ x *
2010 Jul 09
1
Appropriate tests for logistic regression with a continuous predictor variable and Bernoulli response variable
I have a data with binary response variable, repcnd (pregnant or not) and one predictor continuous variable, svl (body size) as shown below. I did Hosmer-Lemeshow test as a goodness of fit (as suggested by a kind “R-helper” previously). To test whether the predictor (svl, or body size) has significant effect on predicting whether or not a female snake is pregnant, I used the differences between
2010 Feb 05
2
glm models with more than one response
Hi everyone, I am trying to construct a glm and am running into a couple of questions. The data set I am using consists of 6 categories for the response and 6 independent predictors representing nutrient concentrations at sample point locations. Ultimately I'd like to use the probabilities for each response category in a simulation model such that these probabilities are used to define a
2009 Nov 12
1
Transforming a dataframe into a response/predictor matrix
I currently have a data frame whose rows correspond to each student and whose columns are different variables for the student, as shown below: Lastname Firstname CATALOG_NBR Email StudentID EMPLID Start 1 alastname afirstname 1213 *@uark.edu 10295236 # 12/2/2008 2 anotherlastname anotherfirstname 1213 **@uark.edu ## 10295236 9/3/2008 Xattempts Q1
2018 Jan 19
4
Internal DNS logging
Thanks Denis, I was looking for the option 'dns:x' in the wiki but I didn't find it. Now it works. I used    log level = 3 auth:3  dns:0 auth_audit:3 gives me unknown class message But where I can find a complete list of classes for log level? I'll also give a try on the last version of samba with json. Thanks again Giuseppe On 1/18/2018 4:52 PM, Denis Cardon wrote:
2017 Aug 03
2
rnorm is not truly random used in the lm function
To whom it may concern, I happened to run the following R code just to check the layout of the output, but found that the code doesn't work the way I thought it should work. '' > lm(rnorm(100) ~ rnorm(100)) Call: lm(formula = rnorm(100) ~ rnorm(100)) Coefficients: (Intercept) -0.07966 Warning messages: 1: In model.matrix.default(mt, mf, contrasts) : the response appeared
2014 Jun 23
4
[PATCH] Support for ASEM UPS on Linux/i2c
On 18/06/2014 04:17, Charles Lepple wrote: > On Jun 13, 2014, at 2:53 AM, Giuseppe Corbelli <giuseppe.corbelli at copanitalia.com> wrote: > >> As said in previous mail, I just finished a first working version of a driver for the UPS found on ASEM PB1300 device >> (http://www.asem.it/prodotti/industrial-automation/box-pcs/performance/pb1300/) >> Linux only, accessed
2009 Jul 20
1
Regression function lm() not giving proper results
* * Hi , Can anyone help me please with this problem?* * *CASE-I* all_raw_data_NAomitted is my data frame.It has columns with names i1 ,i2, i3,i4…, till i15.It has 291 rows actually ,couldn’t show here. The data frame looks like this:-- i1 i2 i3 i4 i5 i6 i7 i8 i9 i10 i11 i12 i13 i14 i15 2 2 2 2 2 2 2 2 2 2 2 1 2 2 3 2 3 2 2 2 2 3 2 2 3 3
2014 Jun 13
2
[PATCH] Support for ASEM UPS on Linux/i2c
As said in previous mail, I just finished a first working version of a driver for the UPS found on ASEM PB1300 device (http://www.asem.it/prodotti/industrial-automation/box-pcs/performance/pb1300/) Linux only, accessed through i2c/SMBUS. If you can spare some time, please review. Expecially my autotools skills are ehm... a bit rusty. -- Giuseppe Corbelli WASP Software Engineer,
2014 Jul 07
0
[PATCH] Support for ASEM UPS on Linux/i2c
Giuseppe Corbelli <giuseppe.corbelli <at> copanitalia.com> writes: > Nevermind, please try the one attached, just created by > > git diff -p 80d9534 configure.ac data/driver.list.in drivers/Makefile.am > drivers/asem.c > asem.patch > > Just applied it on current master (80d9534a133da170cade150700407920450a9753) > and seems ok. Sorry I did not test this
2008 Aug 06
4
Union of columns of two matrices
I was posed the following problem/teaser: given two matrices, come up with an "elegant" (=fast & short) function that returns a matrix with all and only the non-duplicated columns of both matrices; the column order does not matter. In essence, a matrix equivalent of union(x,y), where x and y are vectors. I could not come with anything nice. Any ideas? Giuseppe -- Giuseppe A.
2018 Jan 18
3
Internal DNS logging
Hi, I have two Samba domain controllers version 4.6.4 on Centos 7.3. I need to log every login/logout from windows PCs and I read on the wiki that I have to set log level >=3, this works. The problem is that my log.samba is filled by internal DNS messages, most of them about forwarding. in my smb.conf:         log level = 3 auth:10         vfs objects = full_audit I googled around but