Displaying 20 results from an estimated 20000 matches similar to: "Limitation to R Question"
2016 May 06
2
Is it possible to increase MAX_NUM_DLLS in future R releases?
Thanks for all your great answers.
The app I?m working on is indeed an exploratory data analysis tool for gene expression, which requires a bunch of bioconductor packages.
I guess for now, my best solution is to divide my app into modules and load/unload packages as the user switch from one module to another.
This brought me another question: it seems that unload package with the
2005 Aug 31
1
Bioconductor and R-devel
Hi,
I have built R (current development version) and BioConductor 1.7
with portland group compiler on a AMD Opteron.
When I ran qc assessment on Affymetrix latin square data set, I got the
following output,
Loading required package: affy
Loading required package: Biobase
Loading required package: tools
Welcome to Bioconductor
Vignettes contain introductory material. To view,
2016 May 04
2
Is it possible to increase MAX_NUM_DLLS in future R releases?
On 04/05/2016 08:44, Martin Maechler wrote:
>>>>>> Qin Zhu <qinzhu at outlook.com>
>>>>>> on Mon, 2 May 2016 16:19:44 -0400 writes:
>
> > Hi,
> > I?m working on a Shiny app for statistical analysis. I ran into this "maximal number of DLLs reached" issue recently because my app requires importing many other packages.
2011 Feb 25
1
limma function problem
Hi,
I have two data set of normalized Affymetrix CEL files, wild type vs Control
type.(each set have further three replicates).
> wild.fish
AffyBatch object
size of arrays=712x712 features (10 kb)
cdf=Zebrafish (15617 affyids)
number of samples=3
number of genes=15617
annotation=zebrafish
notes=
> Dicer.fish
AffyBatch object
size of arrays=712x712 features (10 kb)
cdf=Zebrafish (15617
2011 Aug 08
1
read in cel file by ReadAffy and read.celfile
Hi there,
I got a problem when trying to read in a .cel file using ReadAffy().
R codes:
require(affy)
ReadAffy(filenames="CH1.CEL")
It failed and I got the error,
Error in read.celfile.header(as.character(filenames[[1]])) :
Is CH1.CEL really a CEL file? tried reading as text, gzipped text, binary,
gzipped binary, command console and gzipped command console formats
Also, I tried
2009 Jan 27
1
Problem with RMA using limma, oligo and pdInfoBuilder packages
Hi,
I am a Ph.D. student from Québec, Canada. I’m a beginner with R and
Bioconductor. Until now the only experience I have is in analyzing
microarray data using affy and limma packages. Now I am trying to analyze
Rat Gene 10 st arrays and I would like to run RMA analysis and Smyth
moderated t test on those arrays. Since no cdf official package is available
for those arrays, after reading many
2012 Oct 07
1
BioConductor package: 'oligo'
Dear Help,
After loading the pd.Citrus library and checking the DataFrame, I ran
> the R code for:
>
> 1) 'oligo'
>
>
>
> {> library(pd.citrus)
> Loading required package: RSQLite
> Loading required package: DBI
> > data(pmSequence)
>
> > show(pmSequence)
> DataFrame with 341730 rows and 2 columns
> fid sequence
> <integer>
2017 Feb 27
2
How to catch EXCEPTION_ACCESS_VIOLATION exceptions on win64
LLVM3.8 version.
https://bugs.llvm.org//show_bug.cgi?id=24233. The example can catch exception. But I use my own code for testing, CustomEHMemoryManager allocated memory address is very large, allocateCodeSection, allocateDataSection assigned address (more than 32 bit address space) is getting smaller and smaller. Cause registerEHFrames to fail.
3.9.1 or 4.0.0 version has been supported on win
2010 Mar 29
1
stuck with affy / limma
Hi,
I have a question concerning the analysis of some affymetrix chips. I
downloaded some of the data from GEO GSE11324 (see below). In doing so I'm
stuck after I identified the probesets with significant changes. I have
problems in assigning probeset specific gene names as well as getting the
genomic coordinates. Furthermore I have no clue how to deal with the fact,
that most genes have
2018 Feb 17
2
Duplicate column names created by base::merge() when by.x has the same name as a column in y
Hi Scott,
Thanks for the patch. I'm not really involved in R development; it
will be up to someone in the R core team to apply it. I would hazard
to say that even if correct (I haven't checked), it will not be
applied because the change might break existing code. For example it
seems like reasonable code might easily assume that a column with the
same name as "by.x" exists in
2010 Jun 07
1
raw data form .CEL file
Hi
I am new in using R. I am facing problem getting the raw data like the mean
value, standard deviation value form the .CEL file.
Please help me, how can I get these raw information from a .CEL file into an
exel file?
Thanks
--
View this message in context: http://r.789695.n4.nabble.com/raw-data-form-CEL-file-tp2245796p2245796.html
Sent from the R help mailing list archive at Nabble.com.
2007 Mar 01
1
compiling echo cancellation
dear all
I got this error when I try to use libspeex in visual studio. when I
include speex/speex_echo.h, it complains about unresolved external symbol
_speex_echo_state_init. And when I include mdf.c into the source, it
generates whole bunch of errors. Any idea? thanks so much
--------------------Configuration: audio - Win32 Debug--------------------
Compiling...
mdf.c
C:\Documents and
2003 Dec 04
2
RE: R performance questions
Hi--
While I agree that we cannot agree on the ideal algorithms, we should be
taking practical steps to implement microarrays in the clinic. I think
we can all agree that our algorithms have some degree of efficacy over
and above conventional diagnostic techniques. If patients are dying
from lack of diagnostic accuracy, I think we have to work hard to use
this technology to help them, if we
2018 Feb 15
2
Duplicate column names created by base::merge() when by.x has the same name as a column in y
Hi,
I was unable to find a bug report for this with a cursory search, but would
like clarification if this is intended or unavoidable behaviour:
```{r}
# Create example data.frames
parents <- data.frame(name=c("Sarah", "Max", "Qin", "Lex"),
sex=c("F", "M", "F", "M"),
2004 Oct 25
1
Question on bioconductor: reading affymetrix data
Hi everyone,
My purpose is to read a .CEL file into R.
The .CEL file was created from a .CAB by using DTT software found on
Affymetrix website
I read the .CEL file in R using ReadAffy as follows:
> d2=ReadAffy(widget=T)
and I complete the fields as required.
It does not complain. For example I could find the description:
> description(d2)
Experimenter name: BB
Laboratory: FFL
Contact
2018 Feb 18
2
Duplicate column names created by base::merge() when by.x has the same name as a column in y
Thanks Duncan and Frederick,
I suspected as much - there doesn't appear to be any reason why conflicts
between by.x and names(y) shouldn't and cannot be checked, but I can see
how this might be more trouble than its worth given it potentially may
break downstream packages (i.e. any cases where this occurs but they expect
the name of the key column(s) to remain the same).
Best,
Scott
On
2015 Apr 01
2
[LLVMdev] why we assume malloc() always returns a non-null pointer in instruction combing?
Hi Mats,
I think Kevin's point is malloc can return 0, if malloc/free pair is
optimized way, the semantic of the original would be changed.
On the other hand, malloc/free are special functions, but programmers can
still define their own versions by not linking std library, so we must
assume malloc/free always have side-effect like other common functions,
unless we know we will link std
2011 May 09
1
rquest for help
Sir,
Kindlly Guide me how to get the R CELFILES. I have install R but I cannat asses the command:
Data <- ReadAffy()
and I got the error:
Error in AllButCelsForReadAffy(..., filenames = filenames, widget = widget, :
No cel filennames specified and no cel files in specified directory:C:/Documents and Settings/pawan.k/Desktop.
Wit regds,
Pawan
________________________________
This e-mail
2015 Apr 01
3
[LLVMdev] why we assume malloc() always returns a non-null pointer in instruction combing?
Hi David and Mats,
Thanks for your explanation. If my understanding is correct, it means we
don't need to consider the side-effect of malloc/free unless compiling with
-ffreestanding. Because without -ffreestanding, user defined malloc/free
should be compatible with std library. It makes sense to me.
My point is, in std library, malloc is allowed to return null if this
malloc failed. Why
2017 Feb 16
2
How to catch EXCEPTION_ACCESS_VIOLATION exceptions on win64
For help:
Llvm generated instruction calls a function (extern), the function will have a SEH exception (EXCEPTION_ACCESS_VIOLATION), But JIT can not capture the exception of the EXCEPTION_ACCESS_VIOLATION. I saw Bug 24233. EXCEPTION_ACCESS_VIOLATION exception cannot be captured after modification.
How to catch EXCEPTION_ACCESS_VIOLATION exceptions on win64 ?
haifeng.qin at wellintech.com