Displaying 20 results from an estimated 300 matches similar to: "Biclust package: drawHeatmap()"
2010 Jul 12
1
Extract Clusters from Biclust Object
Dear all,
I share the problem Linda Garcia and Ram Kumar Basnet described; I have a
biclust object, containing several clusters. For drawing a heatmap, it is
possible to specify the cluster to be plotted. However, I'd like to extract
the clusters in this manner:
Cond.1 Cond.2
Gene - value - value
just like drawHeatmap specifies each cluster. Is there a way to extract
single
2010 Sep 01
0
biclust package
Hi,
I wanted to compare the quality of biclusters obtained from the various
biclustering algorithms. Is there a function/metric in biclust (or some other
package) that will enable me to do this?
thanks!
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2012 Nov 21
6
Scaling values 0-255 -> -1 , 1 - how can this be done?
I have a dataframe in which I have values 0-255, I wish to transpose them such that:
if value > 127.5 value = 1
if value < 127.5 value = -1
I did something similar using the "binarize" function of the biclust package, this transforms my dataframe to 0 and 1 values, but I wish
to use -1 and 1 and looking for a way in R to do this.
Brian
2012 Nov 17
2
Using cbind to combine data frames and preserve header/names
I have a dataframe that has a header like so:
class value1 value2 value3
class is a factor
the actual values in the columns value1, value2 and value3 are 0-255, I wish to binarize these using biclust.
I can do this like so:
binarize(dataframe[,-1])
this will return a dataframe, but then I lose my first column class, so I thought I could combine it like so:
dataframe <-
2004 Jul 13
0
Calculating sum of squares deviation between 2 similar matrices
Hi all,
I've got clusters and would like to match individual records to each
cluster based on a sum of squares deviation. For each cluster and
individual, I've got 50 variables to use (measured in the same way).
Matrix 1 is individuals and is 25000x50. Matrix 2 is the cluster
centroids and is 100x50. The same variables are found in each matrix
in the same order. I'd like to
2004 Feb 18
4
How to repeat a procedure
Hello,
1. After I generate a 100x50 matrix by x3<-matrix(0,100,50);for (i in
1:100) {x1<-rpois(50, mu[i]);x2<-x1; x2[runif(50)<.01]<-0; x3[i,]<-x2},
2. I want to calculate means and sample variances of each row and create a
new matrix 100x2;
3. I then want to repeat above procedure 500 times so that eventually I
will have 500 100x2 matrices.
Would someone mind helping me to
2012 Aug 02
2
Correlating different sets of variables?
This is a fairly entry level question - so any guidance on this would be
appreciated...
I have two sets of residuals, one of 100 values (A), and one of 10,000
values (B). There are 50 paired sets of these values. The data is in the
form of two matrices (100x50 and 10,000x50).
The goal is to correlate the residuals from A and B, to identify a those B
values that go up when a single A value goes
2015 Apr 17
0
[ANNOUNCE] x11perf 1.6.0
x11perf is a standard X11 tool for measuring how many times per second a
given X11 request can be made.
This release adds one new general option:
-pause <s> pause for <s> seconds between each run
and several new test options:
-crgb10text Char in 80-char rgb core line (Charter 10)
-crgb24text Char in 30-char rgb core line
2008 Sep 10
1
Two way clustering
Hi R users,
I am trying to do two-way clustering (using information of both observation and variables). Is there any package available in R.
Another querry, if somebody can provide related information (website) regarding this statistics, it will be great.
Thanks in advance.
Regards,
Ram Kumar Basnet,
Wageningen University.
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2005 Nov 28
1
AIC and BIC from arima()
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My ultimate goal is to best fit time series by comparing AICs and BICs
(as in Bayesian) from arima() and nnet().
I looked at the arima.R source code, but I am afraid I do not
understand it.
What I only miss really is the number of parameters p, where: AIC =
n*log(S/n) + 2*p
with S the squared residuals and n the number of observations.
Can I get p
2008 Dec 05
2
xtable html links
Hi,
I was trying to get hyperlinks using xtable, but couldn't get the hyperlinks to function properly. For example, if I use
## Try to link NY times website to every figure in column 4
mat <- matrix(1:43,6,5)
mat[,5] <- "http://nytimes.com"
for(i in 1:nrow(mat)){
strr <- paste('<a href="', mat[i,5],'">', mat[i,4], '</a>',
2007 Aug 08
1
Regsubsets statistics
Dear R-help,
I have used the regsubsets function from the leaps package to do subset
selection of a logistic regression model with 6 independent variables and
all possible ^2 interactions. As I want to get information about the
statistics behind the selection output, I?ve intensively searched the
mailing list to find answers to following questions:
1. What should I do to get the statistics
2007 Aug 07
2
Spatial sampling problem
Hi All,
I am new in R and trying to simulate random normal 2D field with mean trend say north-south. My domain is 10x10 grid and I am trying to use mvnorm but do not know how to specify the domain and the mean field.
I would appreciate any help.
Cheers, SK
---------------------------------
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2009 Oct 15
1
Lattice package - Trellis
Hi,
I was trying to make a graph using trellis, and my code is:
-----------------------------------------------------------------
library(lattice)
makeGraph <- function(){
trellis.device()
tbg <- trellis.par.get("background")
tbg$col <- "white"
trellis.par.set("background",tbg)
# Test Data
mfr <- matrix(sample(1:100,50,replace=T),ncol=2)
2006 Jul 27
3
how to resample (or resize) matrix?
Dear r-help,
I have a matrix, suppose, 10x10, and I need the matrix 5x5, having
in each cell a mean value of the cells from the initial matrix.
Please, point me to a function in R, which can help me doing that.
Digging the documentation and mail archives didn't give me a result.
Thank you.
---
Best regards,
Vladimir mailto:wl at eimb.ru
2012 Dec 06
2
[LLVMdev] Proposal: Adding aligned instruction bundle support to MC
On Thu, Dec 6, 2012 at 11:59 AM, Greg Fitzgerald <garious at gmail.com> wrote:
> Maybe I'm jumping the gun, but some initial thoughts after browsing the MC
> layer changes:
>
Greg, it's great to have early comments on this.
> * .bundle_align_start -> .bundle_align_mode N ?
> * .bundle_align_end -> .bundle_align_mode 0 ?
The initial proposal does not cover
2009 Nov 17
2
Lattice plot
Hi,
I was trying to get a graph in lattice with the following data frame (7 rows, 5 cols):
chr start1 end1 meth positive
1 1 10 20 1.5 y
2 2 12 18 -0.7 n
3 3 22 34 2.0 y
4 1 35 70 3.0 y
5 1 120 140 -1.3 n
6 1 180 190 0.2 y
7 2 220 300 0.4 y
I wanted the panels to be organized by 'chr' -
2000 Jan 14
2
Matrix output from drawing functions
Dear all,
I'm a bit confused about the output from functions that generates random
values, e.g. rpois. I'm using 0.65.1 on Digital UNIX alphaev6.
If I say
> rpois(10,5)
output is not unexpectedly:
[1] 4 6 5 7 6 5 2 2 5 3
but I figured that if I go:
> rpois(10,1:10)
I would get a 10x10 matrix as output, with random values for each of
the vector elements in the row vectors, but
1999 Jul 15
1
matrix indices
Hi
Could somebody please explain the following to me:
If x is a 10x10 matrix,
typing x[3] prints all 10 values of column 3, although the length of
the vector =1. Why?
x[,3] and x[[3]] both give all 10 values of column 3, length=10.
What is the difference between these two, actually?
Thanks
Karen Kotschy
Centre for Water in the Environment
Department of Botany
University of the Witwatersrand
2006 Apr 10
1
Issues with aacraid
Hi there,
I'm currently trying to install a server with
Centos 4.3 x86_64. I have issues installing drivers from a Driver disk,
I got a driver(2810SA) from the Adaptec site,
I started it up with "linux dd"
It reads the disk fine ....
I can see the aacraid module in the list but as soon as I choose it.
Then I get a screen saying "Do you wish to load more Driver Disks?"
I