Displaying 20 results from an estimated 1000 matches similar to: "reporting multiple objects out of a function"
2006 Jul 07
3
attach and detach question
I have a large R program that I am constantly running over and over again. At the beginning of this program, I create a hige matrix and a huge dataframe but these are constant. What I mean by constant is that, if I run the program over later, I really should just use the old matrix and dataframe ( if they exist ) that were created in a previous run so that the program doesn't have to spend
2005 May 07
1
Test on mu with multivariate normal distribution
Dear WizaRds,
I am sorry to bother you with a newbie question, but although I tried to solve my problem using the various .pdf files (Introduction, help pages etc.), I have come to a complete stop. Please be so kind as to guide me a little bit along my way of exploring multivariate analysis in R.
I want to test wether the means-vector mu1 of X, consisting of the means per column of that matrix
2005 Jul 04
3
How difficult is it to wrap a large C++ library with R?
Dear list,
I have developed a forward-time population genetics simulation
environment simuPOP, which is a set of C++ (template)
classes/functions wrapped by SWIG as Python libraries. R is used
extensively as plotting and statistical analysis engine through RPy
package.
I use Python to wrap simuPOP since most the following can be easily
done using SWIG or Python C API. However, since Python is
2009 Jul 30
3
Looping through R objects with $ operator and tags
Hi all,
Suppose I want to set the values in a column to the log of the values
of another column like so:
object$LogDist <- log10(object$Distance)
How do I loop through the objects if I have object1, object2, etc to
perform this function?
object1$LogDist <- log10(object1$Distance)
object2$LogDist <- log10(object2$Distance)
object3$LogDist <- log10(object3$Distance)
I was trying to
2011 Aug 28
2
converting matrix in array
Hi everyone,
have a small problem trying to converting a dataset in matrix form to an
array.
Specifically: data include 3D measurement -x,y,z of 59 points in 36 objects.
They are stored as a matrix (x) of 2124 rows and 3 columns.
What I want to do is to extract each subject's dataset using an array (b).
Accordingly, I tried the following command:
b<-array(a,c(59,3,36)).
The problem is
2005 Jan 11
5
global objects not overwritten within function
Dear useRs,
I have a function that creates several global objects with
assign("obj",obj,.GlobalEnv), and which I need to run iteratively in
another function. The code is similar to
f <- function(...) {
assign("obj",obj,.GlobalEnv)
}
fct <- function(...) {
for (i in 1:1000)
{
...
f(...)
...obj...
rm(obj) #code fails without this line
}
}
I don't understand
2004 Jan 16
2
reference to objects
Hi,
is there a way to reference to a data object without copying it?
For example I have a huge matrix called dist and I want two objects
obj1 and obj2 to have a memeber dist that points to the matrix, but
I don't want, for memory reasons, to copy the matrix twice.
As far as I understand the following code will generate three copies
of my data:
dist <- some_code_that_generates_data
1998 May 13
1
all.equal
I need the function all.equal which is in Splus but not yet in R. Below is a
first cut. Comments would be appreciated.
Paul Gilbert
_______
all.equal <- function(obj1, obj2, ...)
{if(mode(obj1) != mode(obj2) ) return("modes differ.")
if(class(obj1) != class(obj2)) return("classes differ.")
if(! all(unlist(attributes(obj1)) ==
2010 May 26
1
problem with not in in subseting dataframe
Hi all,
I have a problem while subsetting a dataframe that is
while I am using *%in%* condition like
*stemp<-subset(temp, obj1 %in% obj2,select=c(temp))*
this is working and giving results that what ever is there is both *obj1*and
*obj2*
**
**
but I want to get values which is there in *obj1* but not in *obj2 *
can anyone help me how to get those values.
i tried with *%o%* but i am not
2001 Oct 01
1
generic default values
I have a generic function
test.equal <- function(obj1, obj2, ...) UseMethod("test.equal")
however, the only argument that specific methods use is "fuzz" so I
would like to change this to
test.equal <- function(obj1, obj2, fuzz=???) UseMethod("test.equal")
The problem is that some methods use slightly different default values
for fuzz than others. How should
2011 Jun 08
1
Reference Class error message: may be caused by lazy evaluation?
Dear All,
I came across an error message recently when constructing a reference class,
an example is attached below, it looks like only if I call a specific method
in advance, otherwise it cannot be found in defined method without using
.self, this make it difficulty that sometimes in my initialize method, I
need to call other method defined in the same reference class, the
workaround for this is
2001 Apr 09
4
fastest R platform
Hello, everyone! I picked up R several months ago and have adopted it
as my choice for statistical programming. Coming from a Java
background, I can honestly say that R is not only free, it is better
tha S-plus: the lexical scope in R makes it very simple to simulate
Java's object model. For this, I encourage everyone to read the artcle:
Robert Gentleman and Ross Ihaka (2000) "Lexical
2008 Dec 23
1
.C and 'temporaries'
Hello,
Before I get into troubles I ask here:
I make a call to a C function using .C. What I would like to know is if
the arguments in the .C call can also be 'temporary' objects.
An example will illustrate this:
# here we don't have a temporary
Obj1 = 5
.C("Func", as.integer(Obj1 ), ...) # certainly works
# here we do have a temporary
Obj2 = 5
.C("Func",
2010 Mar 14
3
likelihood ratio test between glmer and glm
I am currently running a generalized linear mixed effect model using glmer and I want to estimate how much of the variance is explained by my random factor.
summary(glmer(cbind(female,male)~date+(1|dam),family=binomial,data= liz3"))
Generalized linear mixed model fit by the Laplace approximation
Formula: cbind(female, male) ~ date + (1 | dam)
Data: liz3
AIC BIC logLik deviance
241.3
2011 Sep 07
1
access objects
hi,
say I have consecutively numbered objects obj1, obj2, ... in my R workspace.
I want to acces one of them inside a function, with the number given as an argument.
Where can I find help on how to do that? Somebody must have been trying to do this before...
Some keywords to start a search are appreciated as well.
Here's an example, I hope it clarifies what I'm trying to do:
obj1 <-
2013 Oct 16
2
How to obtain restricted estimates from coxph()?
Hello,
I'm trying to use coxph() function to fit a very simple Cox proportional
hazards regression model (only one covariate) but the parameter space is
restricted to an open set (0, 1). Can I still obtain a valid estimate by
using coxph function in this scenario? If yes, how? Any suggestion would be
greatly appreciated. Thanks!!!
[[alternative HTML version deleted]]
2013 Sep 06
1
directives to explicitely exclude objects from import into namespaces
Hi,
recently R CMD check --as-cran has noticed some more issues with
package namespace imports with the recommended remedy to
use importFrom() and friends.
In my case, there was only a conflict restricted to some few imports,
while I would prefer to still import all the non-conflicting objects,
methods, and classes of the respective package namespace.
So would it be possible to have some new
2018 Feb 26
2
lld: order of object files to be put into executable
Hi all!
Is it possible somehow to specify *order* of object files to be put to executable file?
For example, I want to put obj1.o and obj2.o somewhere at the beginning, so when executable file would be mapped
to memory, this code would be accessed quickly.
2020 Jun 19
2
Aliasing and forwarding optimization
----Snip--
struct st1{
int a;
};
struct st2{
int b;
};
struct st {
struct st1 obj1;
struct st2 obj2;
}Obj;
int test1(struct st1 * ptr1 , struct st2 * ptr2, struct st2 *ptr3) {
ptr1->a = 10;
*ptr3 = *ptr2;
return ptr1->a;
}
--Snip---
For the above case GCC is able to store forward the value 10 to the return
place.
LLVM is not doing this.
GCC
https://godbolt.org/z/FCjCXy
LLVM
2008 Jul 16
4
Likelihood ratio test between glm and glmer fits
Dear list,
I am fitting a logistic multi-level regression model and need to test the difference between the ordinary logistic regression from a glm() fit and the mixed effects fit from glmer(), basically I want to do a likelihood ratio test between the two fits.
The data are like this:
My outcome is a (1,0) for health status, I have several (1,0) dummy variables RURAL, SMOKE, DRINK, EMPLOYED,