Displaying 20 results from an estimated 8000 matches similar to: "Could heatmap default to scale="none" ?"
2010 Oct 08
2
Heatmap/Color Selection(Key)
Hi
I made heatmap of QTL based on Lod score. Where I have traits in columns and
marker data (rows). I can not cluster both column and rows as I need the
right order for marker data.
Can someone suggest me better way of generating heatmaps especially the
colour key I want to select to visualize the results which are more
interesting to look at.
> library(gplots)
>
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",
2007 Aug 13
4
vertically oriented color key in heatmaps
Hi, I have some data which I was plotting using image(). I wanted to
add a vertical color key to the plot and I found that heatmap.2 in
gplots does let me add a color key. However, I was thinking of a
vertical bar with the color range rather than the style that gplots
provides.
Is there any package (or code snippet) that would let me add a
vertical color key to an image() or heatmap
2017 Jul 23
3
par(mfrow) for heatmap plots
Hi,
I was trying to use par(mfrow) to put 4 heatmaps on a single page. However,
I get one plot per page and not one page with 4 plots. What should I
modify? Test code is given below:
test = matrix(rnorm(60), 20, 3)
pdf(file='test.pdf',width=10,height=8)
par(mfrow=c(2,2))
heatmap(test)
heatmap(test)
heatmap(test)
heatmap(test)
dev.off()
thanks!
[[alternative HTML version deleted]]
2011 Mar 27
3
comparing heatmaps
Dear all,
I've been trying to find how to compare tow different heatmaps but I'm having trouble getting the colors bar to be the same. I'm doing something like the following:
library(gplots)
dat<-cor(matrix(rnorm(100, m=10), nrow=10))
mat<-cor(matrix(rnorm(100), nrow=10))
dev.new()
heatmap.2(mat, Rowv=NA, Colv=NA, col=redgreen(75), symm=TRUE, trace="none",
2012 Feb 28
1
Unexpected behaviour for RowSideColors in function heatmap
Hello,
I have come across some unexpected behaviour of the function heatmap in the stats package. This looks like a bug to me, but I might have misunderstood something.
When calling the function in symmetric mode, the ColSideColors are plotted correctly, but RowSideColors appear in reverse order. This code (modified from the example on the help page) demonstrates the problem:
cU <-
2009 Aug 24
1
Saving heatmaps as PDFs
Hi,
I'm trying to save heatmaps as PDFs. However, the PDF version of the
heatmaps (Heatmap_CAFvsTNF_run2.pdf) is blurred when compared to its
counterpart, which was saved manually by using the software
"Grab" (Heatmap_CAFvsTNF_run2.tiff).
-----R code--------
sample_output <- "stroma_run2"
filename <-
2017 Jul 23
0
par(mfrow) for heatmap plots
The answer is "don't do that" because that function abuses par. Use lattice or ggplot2 with grid graphics to plot multiple heatmaps.
https://stackoverflow.com/questions/15114347/to-display-two-heatmaps-in-same-pdf-side-by-side-in-r
--
Sent from my phone. Please excuse my brevity.
On July 23, 2017 5:11:32 AM PDT, Brian Smith <bsmith030465 at gmail.com> wrote:
>Hi,
>
2009 May 16
6
Modificando heatmaps
Hola a todos,
Estoy trabajando con la función heatmap.2() de la libreria ggplots. A
continuación encontrarán un ejemplo de la estructura de mis datos y el
código para generar el gráfico que me gustaría modificar:
# Datos
set.seed(123)
x <- matrix(rnorm(8*30), ncol = 8)
rownames(x) <- paste(''GM10A'',1:30,sep="")
colnames(x) <-
2012 Jan 30
1
Reg : Hello all.. help needed regarding heatmaps
Hello all ,
I am beginner and new to this -R world. I have heard much about R and
started working on it.
I have some data of 20 business applications( y -axis) and Months( x-axis)
and values as their score for every month . I tried to generate a heatmap
with this data and got some good results. Can some one help me on how to
generate the legend next to heatmap please...
can some one send me
2003 Sep 27
3
coloring dendrgram in heatmap?
Using the heatmap function in mva, it seems to be hard to use different
colors in the edges leading to different groups of objects, as commonly done
in many heatmaps in the microarray graphics. Any suggestions? Thanks.
max
2009 Apr 07
2
heatmap.2 no reordering of the columns and rows
Hi,
I need to generate a heatmap on a square matrix and wouldn't want to reorder the columns and the rows on the heatmap display.
I have used the options Rowv=NULL and Colv=NULL but doesn't seem to work. Following is a snippet of the heatmap function i am using.
args <- commandArgs();
inputfile <- args[2]
imgfile <- args[3]
bitmap(imgfile, height=15, width=15, res=100,
2006 Feb 22
4
heatmap.2 in gplots package
Hello all,
I am using the heatmap.2 function in the gplots package. I want to supress the reordering of the columns of the data matrix i pass to the function. I used the statement,
heatmap.2(z,Colv=FALSE,dendrogram="row",col=redgreen(75))
where z, is the matrix of data. The output i want should have the rows reordered along with the dendrogram and the columns should be in the original
2012 Sep 09
3
how to save a heatmap.2 in png /jpeg /tiff
Hey, I am still working on my heat map (for those who are read my previous post about row.names)…
Now, I would like to save my heat map.2 in .png or .tiff in order being able to work on the picture in photoshop, but it doesn't work.
I'am using (as I have found on some forum)
> png("heatmap.2.png) # and it just doesn't work. when I try doing it with::
2006 Jan 23
1
lines() in heatmap()
Hello!
I looked for help through google and the help-files and spend several
hours with trial and
error, but didn't find a correct way.
It's all about lines in a heatmap to separate different data block from
each other to underline
the significance of the found clusters!
The heatmap is build like that:
heatmap(X, Rowv=NA, Colv=NA, symm=TRUE, cexRow=0.3, cexCol=0.3)
I switched the
2008 Nov 25
1
row labels in heatmap.2(package gplots)
Dear R users,
I have a question regarding how to make row labels readable in a heat map.
I have successfully made a heat map using function "heatmap.2" in the package "gplots". However, as there are many rows in the heat map, I have difficulties labeling them (heatmap.2 provides a parameter "labRow" to label the row names, but as I have too many rows, I can not make
2010 Feb 07
3
specifying colors in a heatmap/image -like plot
Hi,
I have searched for a solution but I failed to find an answer. I am hoping
you may be able to help me.
I have a data set where I have observations for a number of units (n =~40)
over a period of time (t =~100) and I have a variable (Z) that codes a
categorical variable for each observation. I want to produce a 2D plot where
time is on the x-axis and units are on the y-axis. Then each block
2006 Feb 11
2
heatmap.2 in gplots (PR#8587)
Full_Name: Shane Neph
Version: 2.2.1
OS: mac os x
Submission from: (NULL) (71.113.43.247)
While I found the names of the package authors and maintainer, I was
unsuccessful in finding any contact information.
The preliminary documentation for heatmap.2 is inconsistent in at least a couple
of places when discussing the suppression of one or more dendrograms (and
column/row ordering in general).
2010 Jul 19
1
heatmap.2() yielding an inappropriate key?
Esteemed R-users,
heatmap.2() is yielding an inappropriate key based on my colors and
break-points.
In the reproducible example below, the key is inappropriate (to me) because-
1. 'Orange' is simply not represented in the key, despite its prescence
in the heatmap.
2. The proportions of the key are clearly out, ie., my largest bin, (0.1
- 0.2) is half the range, but this bin (colored
2011 Apr 11
1
heatmap clustering dendrogram export
Hi,
I am a beginner for R.
I had use gplots to generate a heatmap as following:
>heatmap.2(matrix, col=topo.colors(75), dendrogram="column", Rowv=FALSE,
trace="none", key=TRUE, keysize=0.8, density.info="none", cexRow=0.2,
cexCol=0.6)
It work well. It generate heatmap whith rcolumn clustering dendrogram and I
can export a very nice graph. But I don not know how