Displaying 20 results from an estimated 10000 matches similar to: "Is it a bug in list() behavior?"
2004 Sep 14
3
reshaping some data
Hi all,
I have a data.frame with the following colnames pattern:
x1 y11 x2 y21 y22 y23 x3 y31 y32 ...
I.e. I have an x followed by a few y's. What I would like to do is turn
this wide format into a tall format with two columns: "x", "y". The
structure is that xi needs to be associated with yij (e.g. x1 should
next to y11 and y12, x2 should be next to y21, y22, and
2006 Mar 24
1
Multiple error bar plots
Dear R-lister
I have a question about how to create multiple error bar plots.
I found that I can use an "errbar" function from Hmisc package to create one
error bar plot in which there are multiple data points (x, y) with the error
bars. Thus, I know that I can get "one" error bar plot which consists of
many data points. However, I did not find a way to put
2006 Jul 18
3
Test for equality of coefficients in multivariate multiple regression
Hello,
suppose I have a multivariate multiple regression model such as the
following:
> DF<-data.frame(x1=rep(c(0,1),each=50),x2=rep(c(0,1),50))
> tmp<-rnorm(100)
> DF$y1<-tmp+DF$x1*.5+DF$x2*.3+rnorm(100,0,.5)
> DF$y2<-tmp+DF$x1*.5+DF$x2*.7+rnorm(100,0,.5)
> x.mlm<-lm(cbind(y1,y2)~x1+x2,data=DF)
> coef(x.mlm)
y1 y2
(Intercept)
2013 Jan 09
2
Using objects within functions in formulas
Dear all,
I'm looking to create a formula within a function to pass to glmer()
and I'm having a problem that the following example will illustrate:
library(lme4)
y1 = rnorm(10)
x1 = data.frame(x11=rnorm(10), x12=rnorm(10), x13=rnorm(10))
x1 = data.matrix(x1)
w1 = data.frame(w11=sample(1:3,10, replace=TRUE), w12=sample(1:3,10,
replace=TRUE), w13=sample(1:3,10, replace=TRUE))
test1 <-
2017 May 24
2
reg-tests-1d.R fails in r72721
On 2017-05-24, Duncan Murdoch wrote:
>
> I think the test is wrong because in the first case you are working in a
> locale where that character is representable. In my locale it is not, so x1
> is converted to UTF-8, and everything compares equal.
>
> An explicit conversion of x1 to UTF-8 should fix this, i.e. replace
>
> x1 <- path.expand(paste0("~/",
2018 Feb 08
4
plotting the regression coefficients
Hi Dear all;
I would like to create a plot for regression coefficients with each
independent variable (x) along the side and the phenotypes (y) across the
top (as given below). For each data point, direction and magnitude of
effect could be color and significance could be the size of the circle? Is
this possible?
I would greatly be appreciated your help.
Thanks,
Greg
y1 y2 y3 y4 y5 y6
x1
2018 May 24
4
Manipulation of data.frame into an array
Hello everyone,
I want to transform a data.frame into an array (lets call it mydata), where: mydata[[1]] is the first imputed dataset...and for each mydata[[d]], the first p columns are covariates X, and the last one is the outcome Y.
Lets assume a simple data.frame:
Imputed = data.frame( X1 = c(1,2,1,2,1,2,1,2, 1,2,1,2,1,2,1,2),
X2 =
2007 Aug 07
1
Error in as.double.default(x) : (list) object cannot be coerced to 'double'
Dear experts,
I have in all 14 matrices which stands for gene expression divergence and 14 matrices which stands for gene sequence divergence. I have tried joining them by using the concatanation function giving
SequenceDivergence <- c(X1,X2,X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,X13,X14)
ExpressionDivergence <- c(Y1,Y2,Y3,Y4,Y5,Y6,Y7,Y8,Y9,Y10,Y11,Y12,Y13,Y14)
where X1,X2..X14 are the
2018 May 24
0
Manipulation of data.frame into an array
This is one of those instances where a less superficial knowledge of R's
technical details comes in really handy.
What you need to do is convert the data frame to a single (numeric) vector
for, e.g. a matrix() call. This can be easily done by noting that a data
frame is also a list and using do.call():
## imp is the data frame:
do.call(c,imp)
X11 X12 X13 X14 X15 X16 X17 X18 X19
2004 Oct 21
3
error in plot.dendrogram (PR#7300)
Hi,
hres <- hclust(smatr,method="single")
hresd<-as.dendrogram(hres)
as.dendrogram(hres)
`dendrogram' with 2 branches and 380 members total, at height 2514.513
plot(hresd,leaflab="none") #<-error here.
#the plotted dendrogram is incomplete. The x axis is not drawn.
#The interested reader can download the
save(hresd,file="hres.rda")
#from the
2018 Feb 08
0
plotting the regression coefficients
Fwiw, encoding magnitude in color is generally a bad idea. Using area(*not*
radius) is also not great, but maybe it will work for you.
See here for some explanation:
https://www.amazon.com/Visual-Display-Quantitative-Information/dp/0961392142/ref=sr_1_1?s=books&ie=UTF8&qid=1518092778&sr=1-1&keywords=Tufte
Bert
On Feb 7, 2018 11:13 PM, "greg holly" <mak.hholly at
2004 Apr 30
2
./configure --prefix and R_LIBS
Hi!
I am installing R in non standard directory.
./configure --prefix=/non/standard/directory
The installation works fine.
But after starting R i get
.libPaths()
/usr/lib/R/library
but they cant be there of course!
Have I to set some additional switches during config?
Eryk
Dipl. bio-chem. Eryk Witold Wolski @ MPI-Moleculare Genetic
Ihnestrasse 63-73 14195 Berlin 'v'
tel:
2004 Jan 22
4
customising installed libraries
hello
I am returning to some libraries that I had previously customised by amongst
other things adding additional functions. I had simply typed these new
functions into the file in library/R/thelibrary. These however do not seem
to be loaded now as they previously were under older versions of R.
What's changed and what do i need to do?
Thanks
Stephen
2018 May 24
2
Manipulation of data.frame into an array
Hello everyone,
Thank you for this. Nonetheless it is not exactly want i need.
I need mydata[[1]] to provide the values for all 3 variables (Y, X1 and X2) of the first imputation only. As it stands it returns the whole database.
Any ideas?
Best,
ioanna
________________________________
From: Bert Gunter <bgunter.4567 at gmail.com>
Sent: 24 May 2018 16:04
To: Ioanna Ioannou
Cc:
2003 Jul 10
2
XML Package.
Hi!
I have installed the new R on windows.
I wanted to reinstall the XML package. I am not able to find the XML.zip anymore. I am quite shure that they where a windows binary version.
Has anyone old XML windows binary?
Eryk
Dipl. bio-chem. Eryk Witold Wolski @ MPI-MG Dep. Vertebrate Genomics
Ihnestrasse 73 14195 Berlin 'v'
tel: 0049-30-84131285 / \
mail:
2003 Aug 17
2
collapse argument on paste
One gets a different response when abbreviating collapse= in
paste? In the second case, it appears to be acting as if " + " is just
another argument to be pasted.
# expected response
> paste(c("X","Y"),1:4,sep="",collapse=" + ")
[1] "X1 + Y2 + X3 + Y4"
# different!
>
2018 Feb 12
3
plotting the regression coefficients
Hi
After melt you can change levels of your factor variable. Again with the toy example.
> levels(temp$variable)
[1] "y1" "y2" "y3" "y4"
> levels(temp$variable) <- levels(temp$variable)[c(2,4,1,3)]
> levels(temp$variable)
[1] "y2" "y4" "y1" "y3"
>
And you will get graphs with this new levels ordering.
2002 May 02
3
Building own packages on Windows 2000!
Hi!
I encountered some things trying to build own packages under Windows
2000 for which i found no answer in the documentation.
First.
1. I do not found the rcmd.exe in the bin directory of R_HOME.
I installed R using the setup.exe
2. I updated the R intatllation with one of the zip files. (rw1041sp.zip)
now i had the rcmd.exe in the bin.
3. I do not found any hint in the docu that perl is
2003 Nov 21
2
method names conflict.
Hi!
I would like to give my objects functions like "subset", "union", et cetera and name it also in this way.
But this functions names are already used in the base package and they are not generic.
I am right in that if they would be generic then i still can use the neat names with my objects?
I have the impression that there are more and more packages are going to be
2004 May 25
4
Object "silhouette.default" not found. But I knew that it is there.
Hi!
>library(cluster)
In this lib a function called silhoutte.default is defined
than on the R prompt it type
>silhouette.default
Error: Object "silhouette.default" not found
R1.9.0
The same error are at R1.8.1
And I knew that a function silhoutte.default are present.
But the same piece of code works in R1.6.2
???
Eryk
Dipl. bio-chem. Eryk Witold Wolski @