Displaying 20 results from an estimated 100 matches similar to: "Singular matrix"
2011 Oct 24
3
Create a matrix with increment and element with zero subscript
Hello,
Does anyone knows how to deal with zero subscript in R. I have this code:
for (i in 1:nitems){
+ for (j in 1:ncat-1) {
+ draw<-matrix(rnorm(nitems*(ncat-1),seed1,seed2),nitems,(ncat-1))
+ d<-( sigma_d*draw ) + mu_d
+ draw<-matrix(rtnorm((nitems*(ncat-1)),mean = seed1, sd = seed2, lower = .1, upper = 1.5),nitems,(ncat-1))
+
2007 Jun 24
1
There was a problem by the use of snow.
problem of the very large memory require by the Sign extension.
--- R-2.5.0.orig/src/main/serialize.c 2007-03-27 01:42:08.000000000 +0900
+++ R-2.5.0/src/main/serialize.c 2007-06-25 00:48:58.000000000 +0900
@@ -1866,7 +1866,7 @@
static void resize_buffer(membuf_t mb, int needed)
{
- int newsize = 2 * needed;
+ size_t newsize = 2 * needed;
mb->buf = realloc(mb->buf,
2005 Apr 05
4
lists: removing elements, iterating over elements,
I'm writing R code to calculate Hierarchical Social Entropy, a diversity
index that Tucker Balch proposed. One article on this was published in
Autonomous Robots in 2000. You can find that and others through his web
page at Georgia Tech.
http://www.cc.gatech.edu/~tucker/index2.html
While I work on this, I realize (again) that I'm a C programmer
masquerading in R, and its really
2014 May 20
1
Question about fifo behavior on Linux between versions 3.0.3 and 3.1.0
Version 3.1.0 of R has imposed a very small data limit on writing to fifos on Linux. Consider the following R code (Assumes that "ff" is a fifo in the R process's current directory):
con <- fifo("ff", "a+b")
writeBin(raw(12501), con)
In R 3.0.3, this returns without error and the data is available on the fifo. In R 3.1.0, however, this returns the following
2005 Aug 22
2
RFC: "loop connections"
I've just implemented a generalization of R's text connections, to
also support reading/writing raw binary data. There is very little
new code to speak of. For input connections, I wrote code to populate
the old text connection buffer from a raw vector, and provided a new
raw_read() method. For output connections, I wrote a raw_write() to
append to a raw vector. On input, the mode
2005 Sep 18
0
Updated rawConnection() patch
Here's an update of my rawConnection() implementation. In addition to
providing a raw version of textConnection(), this fixes two existing
issues with textConnection(): one is that the current textConnection()
implementation carries around unprotected SEXP pointers, the other is
a performance problem due to prolific copying of the output buffer as
output is accumulated line by line.
This new
2009 Nov 02
1
Using processed objects as arguments of a function
Dear R users,
I wish to utilise processed and saved objects as arguments of a function.
Specifically, I have created objects using *"assign"* & *"paste"* functions
with an incremental index i, the names of the objects are:
fund1, fund2, fund3,....., fund80,..... (where the numerical value
increments according to the index i & class of these objects are
2007 Mar 19
1
xclip and wine
Hello
I perform the following command
$ echo "Text to clipboard" | xlip -i -selection clipboard
$ xclip -o -selection clipboard
Text to clipboard
I can also paste the text in mozilla by pressing shift-insert.
I cannot paste it into application running under Wine.
I have to invoke ctrl-insert explicitly on selected text in order to be
able to paste it into this wine application.
Do
2005 Apr 08
2
DLL Memory Problem
Hello,
I have created a .dll file using G77 and MinGW on my PC (Windows
2000). After using dyn.load to bring it into R2.0.1, I then call the .dll
through the function ccprox shown below. It returns the correct
values. If I run it a second time though it returns different values, so
it seems something is being placed oddly in memory.
If I unload and reload the .dll it works again the first
2002 May 11
1
deleting invariant rows and cols in a matrix
Greetings,
I couldn't find any existing function that would allow me to scan a
matrix and eliminate invariant rows and columns so I have started to
write a simple routine from scratch. The following code fails because
the array index goes out of bounds for obvious reasons you'll see
shortly.
Start with some data
x <- read.table("myex.dat",header=T)
x
v1 v2 v3 v4 v5 id
1
2007 Apr 14
0
[966] branches/wxruby2/wxwidgets_282/doc/textile/listbox.txtl: Fix methods which don''t need a ''n'' item for arrays in Ruby
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><style type="text/css"><!--
#msg dl { border: 1px #006 solid; background: #369; padding:
2010 Jan 06
1
positive log likelihood and BIC values from mCLUST analysis
My question is with respect to mCLUST and the values of BIC and log
likelihood. The relevant part of my R script is:
######################### BEGIN MDS ANALYSIS #########################
#load data
data <- read.table("Ecoli33_Barry.dis", header = TRUE, row.names = 1)
#perform MDS Scaling
mds <- metaMDS(data, k = Dimensions, trymax = 20, autotransform =TRUE,
noshare = 0.1,
2003 Nov 16
1
help with EMclust
we have implemented teh following code for determinging the clustering
model of a dataset.
bicvals <- EMclust( hdata, 7)
sumry1 <- summary(bicvals, hdata,7) # summary object for emclust()
print(sumry1)
This set of code gives the following output
classification table:
1 2 3 4 5 6 7
1 1 1 4 1 1 1
which I think means there is 1 gene in the 1st cluster...1 gene in the
2nd cluster ,
2011 Sep 04
2
mclust: modelName="E" vs modelName="V"
Hi,
I'm trying to use the library mclust for gaussian mixture on a numeric
vector. The function Mclust(data,G=3) is working fine but the fitting is not
optimal and is using modelNames="E". When I'm trying
Mclust(data,G=3,modelName="V") I have the following message:
Error in if (Sumry$G > 1) ans[c(orderedNames, "z")] else ans[orderedNames] :
argument is
2013 May 02
3
Minimal build of R ...
Hi,
I'm trying to cross-compile R to javascript so that it can run in a web-browser. Take as long as you need to stop laughing. So, as I was saying - I want to try and get a build of R running in the browser. [If you're not familiar with it already, you might enjoy looking at emscripten.org. It's a remarkably capable tool for translating LLVM bitcode to javascript. Check out some of
2007 Apr 14
0
[965] branches/wxruby2/wxwidgets_282/doc/textile: Misc.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><style type="text/css"><!--
#msg dl { border: 1px #006 solid; background: #369; padding:
2006 Oct 19
0
[687] trunk/wxruby2/swig/classes/Pen.i: Remove a malformed and unneeded typemap (Roy Sutton)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><style type="text/css"><!--
#msg dl { border: 1px #006 solid; background: #369; padding:
2003 Sep 25
2
Bugs compiling R-1.7.1 with Intel compilers icc and ifc (PR#4295)
Bugs compiling R-1.7.1 with Intel compilers icc and ifc,
on x86-computer (Pentium IV) and linux operating system
Hello,
as there aren't many reports about that issue, I'll give a little
report here. (Hope I don't bother anyone)
The best thing about using icc and ifc are the warnings, because
it is said that the Intel compilers are stricter and give more
precise warnings than gcc.
2010 Oct 15
3
Noughts and Crosses layout with a variable number of entries
I have a product listing of 9 per-page. The products on the far right
and bottom row should NOT have a border on the aforementioned sides. So,
similar to a noughts and crosses layout. However, pages do not always
have 9 products to display.
You may have a better understanding if you see the code I''m currently
using: http://pastie.org/1223260
The code above is passed inside a block and
2008 Feb 25
1
[Fwd: Re: [Fwd: Update to 2.2.1-2]]
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