Displaying 20 results from an estimated 1000 matches similar to: "R can't find some functions in assist package"
2013 May 16
2
R looping help
Hey I'm not really sure what I should put on here, but I am having trouble
with my R code. I am trying to get the p-values, R^2s etc for a number of
different groups of variables that are all in one dataset.
This is the code:
#Stand counter
st<-1
#Collections
stands<-numeric(67)
slopes<-numeric(67)
intercepts<-numeric(67)
mses<-numeric(67)
rsquares<-numeric(67)
2012 Nov 13
1
About systemfit package
Dear friends,
I have written the following lines in R console wich already exist in pdf
file systemfit:
data( "GrunfeldGreene" )
library( "plm" )
GGPanel <- plm.data( GrunfeldGreene, c( "firm", "year" ) )
greeneSur <- systemfit( invest ~ value + capital, method = "SUR",
+ data = GGPanel )
greenSur
I have obtained the following incomplete
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=
2010 Feb 27
1
Newbie help with ANOVA and lm.
Would someone be so kind as to explain in English what the ANOVA code (anova.lm) is doing? I am having a hard time reconciling what the text books have as a brute force regression and the formula algorithm in 'R'. Specifically I see:
p <- object$rank
if (p > 0L) {
p1 <- 1L:p
comp <- object$effects[p1]
asgn <-
2007 Mar 16
3
Unhidden predict methods
Hi,
I've noted that not all `predict' methods are hidden in the namespace:
> methods("predict")
[1] predict.ar* predict.Arima*
[3] predict.arima0* predict.glm
[5] predict.HoltWinters* predict.lm
[7] predict.loess* predict.mlm
[9] predict.nls* predict.poly
[11] predict.ppr* predict.prcomp*
[13]
2007 Jul 12
1
p-value from survreg
The question was how to get the p-value from the fit below, as an S object
sr<-survreg(s~groups, dist="gaussian")
Coefficients:
(Intercept) groups
-0.02138485 0.03868351
Scale= 0.01789372
Loglik(model)= 31.1 Loglik(intercept only)= 25.4
Chisq= 11.39 on 1 degrees of freedom, p= 0.00074
n= 16
----
In general, good places to start are
> names(sr)
>
2010 Aug 30
2
while loop until end of file
Hi Guys,
stumped by a simple problem. I would like to take a file of the form
Pair group param1
1 D 10
1 D 10
1 R 10
1 D 10
2 D 10
2 D 10
2 D 10
2 R 10
2 R 10
etc..
and for each pair, calculate the average of
2004 Jun 30
0
R can find some functions in assist package
I am a new user to R. I installed and loaded the smoothing spline package
called "assist." The function "ssr" seems to work, but "predict.ssr" and
some others don't seem to be available, I get a "can't find" message. But
they appear in the extensions folder, c:program
files\R\rw1091\library\assist\R-ex. What's wrong?
2002 May 11
2
Bug on Mac version of lm()?
Dear Mac users,
Hi, as you might have probably read the thread of
"[R] Rsquared in summary(lm)" on May 10, it seems that Mac version of
lm() seem to be working incorrectly.
I enclose the script to produce the result both for lm() and manual
calculation for a simple regression. Could you run the script and
report with the version of R, so I don't have to go through every
builds
2002 May 09
4
Rsquared in summary(lm)
Hello,
I'm doing some linear regression:
>lm<-lm(osas~alp,data)
>summary(lm)
However, the Rsquared in the output of summary() is not the same as the
"standard" Rsquared calculated by spreadsheets, and outlined in
statistical guidebooks, being SSR/SSTO. The output says "multiple
Rsquared", but it is no multiple regression...
What's the difference?
Thanks,
2004 Dec 06
1
iax2 nativ bridge question?
hallo all,
i would like to know, as i would suspect, nativ bridiging should work also,
if only one iax party is behind an nat router and the other has a public
ip. when i connect to iax clients, which have both pubic ip's nativ
bridging is working. if one of the clients is behind an nat, the iax2
channels always get routed through the asterisk server (latest stable
version from cvs) ?? i
2010 Jul 16
3
Help with Sink Function
iterations <- 100
nvars <- 4
combined <- rbind(scaleMiceTrain, scaleMiceTest)
reducedSample <- combined
reducedSample <- subset(reducedSample, select = -pID50)
reducedSample <- subset(reducedSample, select = -id)
for (i in 1:iterations)
{
miceSample <- sample(combined[,-c(1,2)],nvars, replace=FALSE)
miceSample$pID50 <- combined$pID50
miceTestSample <-
2007 Oct 12
3
no visible binding
Could someone advise me about how to react to the message:
* checking R code for possible problems ... NOTE
slm: no visible binding for global variable 'response'
from R CMD check SparseM with
* using R version 2.6.0 Under development (unstable) (2007-09-03 r42749)
The offending code looks like this:
"slm" <-
function (formula, data, weights, na.action, method =
2005 Mar 08
1
coefficient of partial determination...partial r square [ redux]
If I'm not mistaken, partial R-squared is the R^2 of the quantities plotted
in a partial residual plot, so you can base the computation on that. Prof.
Fox's `car' package on CRAN has a function for creating those plots, but you
need to figure out the way to extract the quantities being plotted.
[In any case, the basic tools for doing such computations are all in R, and
it
2012 Jul 18
1
Regression Identity
Hi,
I see a lot of folks verify the regression identity SST = SSE + SSR
numerically, but I cannot seem to find a proof. I wonder if any folks on
this list could guide me to a mathematical proof of this fact.
Thanks.
David.
--
View this message in context: http://r.789695.n4.nabble.com/Regression-Identity-tp4636829.html
Sent from the R help mailing list archive at Nabble.com.
2024 Apr 15
2
Synthetic Control Method
Good Morning
I want to perform a synthetic control method with R. For this purpose, I
created the following code:
# Re-load packages
library(Synth)
library(readxl)
# Pfadeinstellung Excel-Blatt
excel_file_path <-
("C:\\Users\\xxxxx\\Desktop\\DATA_INVESTMENTVOLUMEN_FOR_R_WITHOUT_NA.xlsx")
# Load the Excel file
INVESTMENTVOLUME <- read_excel(excel_file_path)
#
2012 Oct 23
1
help using optim function
Hi, am very new to R and I've written an optim function, but can't get it to
work
least.squares.fitter<-function(start.params,gr,low.constraints,high.constraints,model.one.stepper,data,scale,ploton=F)
{
result<-optim(par=start.params,method=c('Nelder-Mead'),fn=least.squares.fit,lower=low.constraints,upper=high.constraints,data=data,scale=scale,ploton=ploton)
2007 Oct 02
1
How to view the code of a method?
Dear All
I am a biginner of R.
I have difficulty with reading the code of a method.
I am using the vars package to estimate a VAR model and I want to view the code of "predict" method for objects with class attribute "varest".
I thougt I could just type the name "predict" without anything to display the code of the method as I often do with generic function.
2004 Jul 16
1
Random Fields
I have tried to install the package RandomFields (using the packages menu)
from CRAN and it fails to open the zip file. I then tried downloading the
package from the author's site, but it still fails to install. Anyone had
any success with this? Or am I doing something wrong.
Thanks in advance for any help.
Michael Axelrod
2007 Jan 30
1
SparseM and Stepwise Problem
I'm trying to use stepAIC on sparse matrices, and I need some help.
The documentation for slm.fit suggests:
slm.fit and slm.wfit call slm.fit.csr to do Cholesky decomposition and then
backsolve to obtain the least squares estimated coefficients. These functions can be
called directly if the user is willing to specify the design matrix in matrix.csr form.
This is often advantageous in large