Displaying 20 results from an estimated 500 matches similar to: "gplot heatmap"
2010 Sep 18
1
Drawing Heatmap using gplots
Hi,
I am using heatmap.2 of gplots to make heatmaps of my the attached file. I
am giving my code for the same ..
library(gplots)
x=read.table("1.txt", header=TRUE)
mat=data.matrix(x)
heatmap.2(mat, col=greenred(75),
Rowv=TRUE,
Colv=TRUE,
distfun = dist,
hclustfun = hclust,
dendrogram = c("both"),
scale = c("row"),
na.rm=TRUE,
trace="none",
2012 Jul 30
1
Z score in gplots
Hi,
Can anyone tell me how to set Z-score according to my own requirement as
the below code is taking as per the file entries. Any help would
be appreciable.
library(gplots)
x=read.table("final.txt", header=TRUE)
mat=data.matrix(x)
heatmap.2(mat,
col=colorRampPalette(c("green","white","red"))(256),
#col=greenred(75),
Rowv=TRUE,
Colv=FALSE,
distfun = dist,
2011 Apr 13
0
Clustering help in Heat Maps
Dear Experts,
I am using the below script to generate the heat map of gene expression
data. I am using Hierarchical Clustering (hclust) for clustering. Now I want
to compare different clustering parameters such as *K-means* clustering, Model
Based Clustering,
I have two queries:
1. How to incorporate different clustering method in the same code?
2. Is this possible to implement pvclust in the
2009 Jul 21
1
problem with heatmap.2 in package gplots generating non-finite breaks
I have written a wrapper for heatmap.2 called
heatmap.w.row.and.col.clust which auto-generates breaks using
breaks<-round((c(seq(from=(-20 * stddev), to=(20 * stddev))))/20,
digits = 2) #(stddev in this case = 2.5)
This has always worked well in the past but now I am getting an error
that non-finite breaks are being generated. Drilling down, it seems
that my wrapper is generating finite
2010 Sep 01
3
Save data as .pdf or .JPG
Hi all ,
I have following script to plot some data.
plot( c(1,1100), c(0,15), type='n', xlab='', ylab='', ylim=c(0.1,25) ,
las=2)
axis (1, at = seq(0,1100,50), las =2)
axis (2, at = seq(0,25,1), las =2)
lines( c(1,304),c(0,0),col='grey', lwd=3 )
lines( c(1,238),c(1,1),col='grey', lwd=3 )
segments(86, 0 ,270,col = "green", pch=23,
2010 Mar 20
1
abline on heatmap
Hi,
Is there a way I can draw an abline on a heatmap? I try the abline function, but don't get the line. My sample code is:
mat <- matrix(sample(1:100,40),nrow=5)
heatmap(mat,col=greenred(75),trace="none",
dendrogram = "column",labCol = NULL)
abline(h=5,v=4)
thanks!
[[alternative HTML version deleted]]
2010 Mar 16
1
heatmap.2 - ColSideColors question
Hi,
I wanted to make more than one side color bar. For example, I can make one side color bar (col1) with the following code:
-----------------------------------
library(gplots)
mat <- matrix(sample(1:100,40),nrow=5)
class1 <- c(rep(0,4),rep(1,4))
col1 <- ifelse(class1 == 0,"blue","red")
class2 <- c(rep(1,3),rep(2,5))
col2 <- ifelse(class2 ==
2010 Sep 02
2
R code changes to crap
Hi,
I am using vim to edit my files...I do not know what has been pressed by me
as my R code get converted to such a crap...
%PDF-1.4
%<81>â<81>ã<81>Ï<81>Ó\r
1 0 obj
<<
/CreationDate (D:20100902122215)
/ModDate (D:20100902122215)
/Title (R Graphics Output)
/Producer (R 2.11.1)
/Creator (R)
how to reconvert it to the my actual code?? as I do not have backup for
2005 Mar 20
2
Using locator() to digitise
Hi Folks,
I'm contemplating using locator() to digitise external
graphics. To set context, I would be using X11 display
on Linux.
To pre-empt the obvious comment: I've found on the R site
the suggestion to use the 'pixmap' package. I've tried
this, and it works; but it involves building a big R
object (the internal pixmap representation), and this
chokes my somewhat puny
2011 Sep 21
0
heatmap.2 with colsep and sepwidth
I am using attributes colsep and sepwidth from heatmap.2 function,
however when using larger values for sepwidth the following columns are
not moved to the right but the seperator is covering the column(s) with
a white bar and the column labels and ColSideColors remain at their
positions, is this intended? I expected the following columns to be
shifted to the right by sepwidth. Is there a way
2010 Jun 01
1
loop
Can any one help it will be very kind, loop statements
I have this table and some more records, I want to reshape it
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
TP53 Dis1 Dis2 Dis3 Dis4 Dis5 Dis6
DCI New1 New2 New3 New4
FDI Hi2 H3 H4
GHD I1 I3 I4 I5 I6 I7 I8
I want my new table or matrix to be some thing like this
V1 V2 V3
Tp53 Dis1 Dis2
Tp53 Dis1 Dis3
Tp53 Dis1 Dis4
Tp53 Dis1 Dis5
Tp53 Dis1 Dis6
Tp53 Dis2
2004 Feb 16
1
labRow/labCol options in heatmap()
The function heatmap() allows to specify row/column labels
via the options labRow/labCol. From the code of heatmap(),
I understand that when no labels are specified, the row/column
labels (or indices) of the input matrix are taken as labels and
re-ordered together with the rows and columns of the matrix before
plotting, whereas labels supplied via labRow/labCol are plotted
in the original order.
2020 Jun 21
1
Possible bug in heatmap()?
Dear All,
There might be a bug in heatmap():
x <- matrix(rnorm(10*5), 10, 5)
heatmap(x, labCol=1:5)
Error in axis(1, 1L:nc, labels = labCol, las = 2, line = -0.5, tick = 0, :
'at' and 'labels' lengths differ, 5 != 10
Works fine under 4.0.1. Looking at the code from 4.0.1 vs. Rdevel, esp. this part sticks out:
labRow <- labRow[rowInd] %||% rownames(x) %||%
2009 Jan 20
1
heatmap.2 color issue
Dear All:
I tried to use heatmap.2 to generate hierarchical clustering using the following command:
heatmap.2(datamatrix, scale="row", trace="none", col=greenred(256), labRow=genelist[,1], margins=c(10,10), Rowv=TRUE, Colv=TRUE)
datamatrix is subset of a RMA normalized data subset by a genelist.
The problem is a lot of times, the z-score in key are from, like -5 to 15 or
2006 Feb 06
3
FXS with v.90 modem support?
I have a couple of devices that need an analog modem to communicate
outside of our Asterisk system. Most FXS gateways don't seem to
support this... I have a stack of Sipura 2002's that are, AFAIK,
worthless for this purpose.
I've heard that Digium's IAXy FXS will work with modems, but I can't
find any reference to that in their documentation. There is also the
2011 Feb 24
3
set argument of a function by string variable
Hi folks,
I am wondering if the following is possible: I want to control the
arguments sent to a function by string variables. For example, instead of
> heatmap.2( A, col=greenred(75) )
I would want to have something like:
> heatmap.2 ( paste(A, "col=greenred(75)", sep=",") )
Is this possible to do that?
Thanks,
D.
2004 Sep 07
1
gridBase and heatmap
I would like to use gridBase to place four separate heatmaps (actually,
a stripped-down heatmap.2 from ght gregmisc package that contains only
the "image" part) into four different viewports. I can get the
placement correct, but I keep 'losing' the previous plot. Any
suggestions?
Here is some quick example code trying to put a heatmap into the left
viewport and then
2001 Aug 08
1
Strategy for creating a palette...?
Dear all,
I'm generally not a big fan of GUIs, but I have just discovered one thing
where a GUI would be a nice thing: creating color palettes.
I'm creating an "image", for transparencies for a lecture I'm giving, so
this is going to look great... :-) What I'm out for, is to make green
tones and red tones, and a relatively sharp break between them. This break
will
2008 May 14
4
Heatmap.2 - eliminate cluster and dendrogram
Using the heatmap.2 function, I am trying to generate a heatmap of a
2 column x 500 row matrix of numeric values. I would like the 1st
column of the matrix sorted from the highest to the lowest values -
so that the colors reflected in the first column of the heatmap (top
to bottom) go from red to green.
After sorting the matrix (z), I tried the following command, but the
data remains
2009 Jul 30
1
lmer() and "$ operator is invalid for atomic vectors"
Hi all,
I am a bit mystified by this error message that I get when I try to apply
lmer() to a simple dataset with one between factor (age) and one within
factor (item): "$ operator is invalid for atomic vectors"
I'll just provide the code, because I don't see where the problem is:
library(lme4)
options(contrasts=c("contr.helmert","contr.poly"))
data =