Displaying 20 results from an estimated 300 matches similar to: "Extract Clusters from Biclust Object"
2010 Feb 01
0
Biclust package: drawHeatmap()
Hi,
I was trying to draw a heatmap of the bicluster results. With the code given in the biclust package I can only get the heatmap for one cluster at a time (drawHeatmap function). Is there any way that I can get the heatmap for all the clusters at the same time?
The code that I am using (biclust documentation) is:
#Random 100x50 matrix with a single, up-regulated 10x10 bicluster
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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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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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 <-
2006 Aug 05
1
formating for dist function
Hi there
I have a list that looks like this
object1 object1 78
object1 object2 45
object1 object3 34
object1 object4 45
object2 object2 89
object2 object3 32
object2 object4 13
but i want to create a matrix like this in order to use the dist function of R
object1 object2 object3 object4
object1 78 45 34 45
object2 45
2002 Apr 12
1
Problems with memory
Dear all,
I've started working with R (vs 1041) a few weeks ago, and now I'm
having problems with the amount of memory.
I'm working on the windows-me, my computer has 128 Mb of memory. I'm
using the R under the emacs (ESS-5.1.20) and it is started by the
command:
Rterm --min-vsize=10M --max-vsize=100M --min-nsize=500k --max-nsize=1M
I've been had problems when executing a
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
2009 Jun 15
1
Create R object
Dear R users,
I have two simple questions here, and hope someone can help me on this. Thanks in advance.
1.
I have a list object lst=list(a1=matrix(rnorm(4),2,2), a2=matrix(rnorm(4),2,2),a3=matrix(rnorm(4),2,2)). Here I only use three elements for illustration, and in fact the length of lst, n, is unknown in advance. I want to define an object for each element of this lst, and the objects have
2008 Sep 05
2
Error: can not allocate vector of 117.3 Mb
Hi R users,
I am doing multiscale bootstrapping for clustering through pvclust package. I have large data set (observations 182 and variables 5546). When i tried to make bootstrapping, then i got message as "Bootstrap (r = 0.5)............Error: cannot allocate vector of size 117.3 Mb".
I am new R user and could not understand what is the problem and also don't know the easiet
2012 Feb 24
1
remove multiple objects starting with same name
Hi,
I'm trying to figure out syntax R function rm() needs to remove all objects
starting with same name. For example, if I have object1, object2, object3,
i want to do an operation similar to UNIX rm object*
Thanks.
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2009 Jun 15
4
reading Excel file
Dear all,
I was using older version of R (installed early). I install new version of R (R.2.9.0) but i could not find package "xlsReadWrite" to read Excel file. Is there any alternatives to read Excel file ?
I hope it should be.
I need help although it is minor querry.
Thanks in advance.
Sincerely,
Ram Kumar Basnet
Wageningen University,
The Netherlands
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2010 Dec 05
3
merging two vectors
Dear R users,
It may be very simple but it is being difficult for me.
I have two vectors with some common string. And, i want to combine into a vector in such a way that it includes string from both vectors and make a unique.
For example:
x <- paste(rep("A",5),1:5,sep = ".")
x
[1] "A.1" "A.2" "A.3" "A.4" "A.5"
y <-
2008 Sep 15
1
how to plot PC2 vs PC 3 in PCA
Hi everybody,
I am doing principal component analysis (PCA) using "prcomp' function. When i did "Biplot", i did not found interesting result and it is based on Principal component (PC) 1 vs PC2. Now, i want to see"Biplot" in combination of either PC1 vs PC3 or PC2 vs PC 3. I did not get the ideas.
Does any one have ideas ?
I am optimistic on getting some idea.
2008 Dec 06
2
Barplot label
Dear all,
I am trying to make barplot from matrix with "beside=FALSE". I have 165 labels in my bar plot. When i plot the label horizontally below the barplot, then all labels are not appear in the plot due to lack of space. I used the following function:
barplot(t(bar), main="Barplot based on LCMS", ylab="RF membership Probability",
2011 Dec 02
1
Error in Genetic Matching
Dear R Users,
I am a novice learner of R software. I am working with Genetic Matching - GenMatch(), but I am getting an Error message as follows:
Error in GenMatch(Tr = Tr, X = X.binarynp, BalanceMatrix = BalanceMatrix.binarynp, :
GenMatch(): input includes NAs
Could you please suggest me correcting the above problem?
My GenMatch command is,
> gen1 <- GenMatch(Tr = Tr, X =
2008 Oct 01
1
Error: cannot allocate vector of size 117.3 Mb
Dear R users,
I am using RandomForest package. While using this package, i got
"Error: cannot allocate vector of size 117.3 Mb" .........................message.
I had this problem earlier too but could not manage. Is there any way to solve this problem or to increase vector size ? My data set is of 163 samples and 5546 variables.
I tried through "? Memory" function to solve
2008 Sep 02
1
how to increase row number
Hi
I think this may be simple task but creating trouble to me.
In my calculation, i have got large number of rows (5546) and column 182 but i am not able to see all the rows. May be somebody have idea how i can see all the rows ? I will be greatful if any body help me.
Thanks in advance
Sincerely,
Ram Kumar Basnet
Graduate student
Wageningen University
Netherlands
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2008 Sep 28
1
how to make subset of large data
I have very large data set. I want to make subset of data based on the matching. For example,
> x
[1] "a" "b" "c" "f"
> yy
"a" "-0.761988113636315" "-0.117672628171555" "-0.885641151614679"
"b" "-1.13288279283289"
2008 Nov 18
1
Statistical querry on Partial correlation test
Hi R users,
I want to calculate the partial correlation (first or second order) and their corresponding significance test (p-value).
I used
> library(corpcor)
and "cor2pcor" function to calculate partial correlation but could not calculate "p-value".
If some one knows the R package or function to calculate corresponding "p-value", It will be great help.
Thanks