Displaying 20 results from an estimated 4000 matches similar to: "inner_perc_table?"
2012 May 24
1
modifying some package code
Greetings,
I am working on modifying some code from the nlme package.  I have had many
discussions on the mixed models mailing list and have been directed to
simply 'hack' the source code to have the degrees of freedom generated by
one function to use in the output of another function that doesn't generate
them.  My current holdup is an error regarding a .c file called
2013 Mar 02
2
caret pls model statistics
Greetings,
I have been exploring the use of the caret package to conduct some plsda
modeling.  Previously, I have come across methods that result in a R2 and
Q2 for the model.  Using the 'iris' data set, I wanted to see if I could
accomplish this with the caret package.  I use the following code:
library(caret)
data(iris)
#needed to convert to numeric in order to do regression
#I
2012 May 25
3
count number of groups
Hello,
Simple question that I am stuck on and can't seem to find an answer in the
help files currently.  I have a list which contains repeated ID's.  I would
like to have R count the number of ID's.  For example:
ID=c(1,1,1,1,2,2,2,2,3,3,3,3)
as.data.frame(ID)
Clearly, there are 3 groups.  How would I have R give me the summary:
ID
3
Many thanks,
Charles
	[[alternative HTML
2017 May 10
2
bug report: nlme model-fitting crashes with R 3.4.0
lme() and gls() models from the nlme package are all crashing with R.3.4.0. Identical code ran correctly, without error in R 3.3.3 and earlier versions.  The behavior is easily demonstrated using one of the examples form the lme() help file, along with two simple variants. I have commented the errors generated by these calls, as well as the lines of code generating them, in the code example below.
2012 Oct 26
4
Merge matrices with different column names
A general question that I have been pursuing for some time but have set
aside.  When finishing some analysis, I can have multiple matrices that
have specific column names.  Ideally, I would like to combine these
separate matrices for a final output as a csv file.
A generic example:
Matrix 1
var1A          var1B          var1C
x                      x               x
x                      x     
2024 May 28
1
How to call directly "dotTcl" C-function of the tcltk-package from the C-code of an external package?
I have a use case with tcltk-package where I need to repeatedly call Tcl/Tk functions
very quickly. For such purpose, the standard R-interface turned out to be too slow, and
better option has been to call package's C-function dotTcl directly from my own C-code.
Before R 4.4.0 it was possible to use getNativeSymbolInfo("dotTcl","tcltk")$address (or 
2012 Dec 04
3
reformatting some data
Hello,
I am trying to reformat some data so that it is organized by group in the
columns.  The data currently looks like this:
       group X3.Hydroxybutyrate X3.Hydroxyisovalerate   ADP
347     4              4e-04                 3e-04                  5e-04
353     3              5e-04                 3e-04                  6e-04
359     4              4e-04                 3e-04             
2017 May 11
2
bug report: nlme model-fitting crashes with R 3.4.0
On 11 May 2017 at 10:17, Erwan Le Pennec wrote:
|      Dear all,
| 
|      I've stumbled a similar issue with the package cluster when 
| compiling the 3.4.0 version with the settings of Fedora RPM specs. 
| Compiling R with the default setting of configure yields a version that 
| works for cluster... and nlme.
| 
|      I did not find the exact option that was the cause of this issue 
| but
2012 Sep 28
3
Better way of Grouping?
Hello R users,
This is more of a convenience question that I hope others might find useful
if there is a better answer.  I work with large datasets that requires
multiple parsing stages for different analysis.  For example, compare group
3 vs. group 4.  A more complicated comparison would be time B in group 3 of
group L with B in group 4 of group L.  I normally subset each group with
the
2000 Jun 04
2
mle (PR#560)
Full_Name: Per Broberg
Version: 1.00
OS: Windows 98
Submission from: (NULL) (62.20.231.229)
I tested my installation with the following:
> library(lme)
Loading required package: nls 
Error in dyn.load(x, as.logical(local), as.logical(now)) : 
        unable to load shared library
"C:\PROGRAM\R\RW1000/library/nls/libs/nls.dll":
  LoadLibrary failure
> data(Orthodont)
> fm1
2013 Mar 07
2
Multivariate Power Test?
Generic question... I am familiar with generic power calculations in R,
however a lot of the data I primarily work with is multivariate.  Is there
any package/function that you would recommend to conduct such power
analysis?  Any recommendations would be appreciated.
Thank you for your time,
Charles
	[[alternative HTML version deleted]]
2012 Oct 17
2
cut2 error
To R users,
I am trying to use cut2 function from the 'Hmisc' library.  However, when I
try and run the function on the following variable, I get an error message
(displayed below).  I suspect it is because of the NA but I have no idea
how to address the error.  Many thanks to any insights.
structure(list(var1 = c(97, 97, 98, 98, 97, 99, 97,
98, 99, 98, 99, 98, 98, 97, 97, 98, 99, 98,
2013 Oct 02
5
Interpreting the result of a Wilcoxon (Mann-Whitney U) test
Hello everyone,
I'm having some trouble interpreting the results of a Wilcoxon
(Mann-Whitney U) test. Hope you can help.
This is the R script that I am running:
a <- c(1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 2, 1, 5, 1, 1, 1, 3, 1, 1,
1, 1, 1, 1, 3, 1, 1)
b <- c(1, 2, 1, 1, 2, 3, 2, 2, 1, 2, 1, 1, 1, 2)
wilcox.test(a, b, alternative="t", mu=0, exact=FALSE, paired=FALSE)  #1st
2012 Apr 20
1
Numbers not numeric?
Greetings R users,
I have a curious problem.  I read in a csv file (subset shown below) as
normal
data=read.table("C:/Users/Chaz/Desktop/test.csv",sep=",",header=TRUE,
na.strings=".")
However, the numbers from the dataset are not registered as numeric:
is.numeric(data$Mesh)
[1] FALSE
When I try as.numeric, it converts all the values to different integers.
This
2012 Oct 24
2
Kaplan Meier Post Hoc?
This is more of a general question without data.  After doing 'survdiff',
from the 'survival' package, on strata including four groups (so 4 curves
on a Kaplan Meier curve) you get a chi squared p-value whether to reject
the null hypothesis or not.  Is there a method to followup with pairwise
testing on the respective groups?  I have searched the library but have
come up with
2013 Jan 07
3
renumber a list of numbers
Greetings R users,
I am trying to renumber my groups within the file shown below.  The groups
are currently set as 8,9,10,etc.  I would like to renumber this as
1,2,3,etc.  I have searched the help files and only come across using the
rownames to renumber the values but I need to match values.  Any assistance
is always appreciated,
Regards,
Charles
structure(list(Group = structure(c(1L, 1L, 1L,
2012 Oct 18
1
looping survdiff?
Hello,
I am trying to set up a loop that can run the survdiff function with the
ultimate goal to generate a csv file with the p-values reported.  However,
whenever I try a loop I get an error such as "invalid type (list) for
variable 'survival_data_variables[i]".
This is a subset of my data:
structure(list(time = c(1.51666666666667, 72, 72, 25.7833333333333,
72, 72, 72, 72, 72,
2010 Nov 08
1
R help: reorder columns in an xyplot
Hello. First post, though I have read scores. Mostly i can solve my 
problems reading the archives, but I lack the vocabulary to ask this one 
right. Any social faux pais, I apologize.
I am sure this is a very basic question and I am embarrassed to ask, but I 
spent several hours scouring the archives and trying various suggestions, 
but I am too new to get any of them to work.
I am trying to
2011 Aug 17
3
getNativeSymbolInfo("user_unif_rand") returns different results on windows and linux
Hi,
When loading a package that provides the user-supplied RNG hook 
user_unif_rand, calling getNativeSymbolInfo("user_unif_rand") returns 
informations about the loaded symbol.
I am using this to identify which package currently provides the RNG hook.
The results are the same on windows and linux if only one library 
provides the hook.
If one loads a second package that provides this
2024 May 30
1
How to call directly "dotTcl" C-function of the tcltk-package from the C-code of an external package?
I asked Tomas. 
Apparently this works:
getNativeSymbolInfo("dotTcl",PACKAGE=getLoadedDLLs()$tcltk)
and the tcltk behavior was changed by 
r84265 | hornik | 2023-04-15 08:44:36 +0200 (Sat, 15 Apr 2023) | 1 line
Try forcing symbols in ff calls.
Index: library/tcltk/src/init.c
===================================================================
--- library/tcltk/src/init.c