Displaying 20 results from an estimated 10000 matches similar to: "R function for Gap statistic"
2006 Jan 12
4
Loading Excel file into Limma
Dear mailing group,
This is my first time here. Glad to have this resource!
I am currently trying to load an Excel file into R (limma package loaded)
using the source(*name of directory*) command, but it cannot open the file.
I renamed the file as .R and .RData, to no avail. The Excel data contains
one gene name per row and about 100 data points per gene (columns).
I am only used to
2007 Feb 09
2
RE gap statistic in cluster analysis
Has anyone implemented Tibrishani's gap statistic in R or S plus? If so I would greatly appreciate the relevant script file.
Any help will be much appreciated
Kind regards
Dr Graham Leask
Economics and Strategy Group
Aston Business School
Aston University
Aston Triangle
Birmingham
B4 7ET
Tel: Direct line 0121 204 3150
email g.leask@aston.ac.uk
[[alternative HTML version deleted]]
2006 Feb 06
6
problem with simple if() statement
the following code apprantely, for some grand old reason, induces a syntax error:
if (seq[i] = "A") m <- trans[1,]
where seq is a vector and trans is a matrix. I cannot for the life of me see why this is wrong. Syntax error is:
Error: syntax error in "if (seq[i] ="
Sincerely,
Norman Goodacre
---------------------------------
2006 Feb 06
1
generating markov chain
Dear help group,
Just fyi a markov chain is a sequence of transitions between states (say A,T,G,C - on a gene) with a given probability for each transition. In this case there'd be 16 different kinds, each with a different weight.
Given a transition matrix (4x4) filled with all transition probabilities of course, how can I generate a random sequence of a given length, say 200?
2006 Jan 18
4
Coercing a list to integer?
Dear group,
I am nearly beside myself. After an entire night spent on a niggling little detail, I am no closer to to the truth. I loaded an Excel file in .csv form into R. It apparentely loads as a list, but not the kind of list you can use. Oh no, it converts into a list that cannot be converted into an integer, numeric, or vector, only a matrix, whihc is useless without integers.
2006 Jul 21
1
Q. regarding optim()
Dear R mailing group,
The second parameter for the function optim()is a function whose
parameters are to be optimized. The description of this function given in
the help file is the following:
fn: A function to be minimized (or maximized), with first
argument the vector of parameters over which minimization is
to take place. It should return a scalar result.
2006 Jul 15
1
R installation - WINDOWS - problem
Dear R mailing group,
I am having extreme - and mysterious - trouble installing R. I tried
simply dl ing R-2.3.1.tar.gz, and unzipping it, but after doing so, nowhere
could I find a file called R-2.3.1.exe. I did however find an
R-2.3.1.exe.manifest.
I therefore tried the command line installation command - given in
R-admin.pdf. This command is: tar zxvf R-2.3.1.tgz
This is strange
2005 Jun 23
2
compiling gap on mac os x
Hi, I am having trouble compiling package gap
http://www.hgmp.mrc.ac.uk/~jzhao/r-progs.htm on Tiger. I have installed
XcodeTools 2.1. The binary version of gap currently available on CRAN
has some bug and is fixed in the latest version.
The message I get from R is below. Any help is greatly appreciated.
best regards,
Kenny Ye
tar: Read 1536 bytes from -
* Installing *source* package
2005 Aug 05
0
GAP pointer
I am trying to do a simple segregation analysis using the GAP package. I
have the documentation for pointer but I desperately need an example so
that I can see how to format the datfile and the jobfile. For each
individual, I have FamilyId, SubjectId, FatherId, MotherId, and
AffectedStatus (0/1). I would like to obtain the likelihood ratio
statistic for transmission.
I would greatly
2008 Aug 12
1
gap.plot() and axes=F
Hello!
Using the package Plotrix I want to do a plot with a broken axis.
So far it's working fine but now I want only the x and y axis plotted
(the x-axis with a gap in it), but not the axes that are reffered to as
axis 3 and 4, and not the lines that additionally mark the gap in the axis.
I thought an 'axes=F' in the gap.plot() command would do (as in the
usual plot()), but it does
2008 Jun 25
0
subscripted assignments errormessage in gap.boxpot
I am trying to create a boxplot that has a gap with different scales so that my boxes actually show (compare attachments). I have referred to the help pages for gap.boxplot, gap.plot, list with no luck so far. Here is my script and the resulting error message:
# Import *.csv files containing areas for each CLI class
cli3<-read.table("F:\\Megan\\cli3.csv", header=TRUE,
2011 Apr 04
2
gap.barplot doesn't support data arrays?
I am trying to make a barplot with a broken axis using gap.barplot (in the
indispensable plotrix package). This works well when the data is a vector:
> twogrp<-c(rnorm(10)+4,rnorm(10)+20)
> gap.barplot(twogrp,gap=c(8,16),xlab="Index",ytics=c(3,6,17,20),ylab="Group
values",main="Barplot with gap")
But when the data is an array (for a bar plot with multiple
2006 Jul 19
2
Plotting lines and points on the second plot when using gap.plot in plotrix
Hi
My question is simple - the gap.plot function in the plotrix package
allows users to draw graphs that have a broken axis. However, I want to
then add a line to the "second" plot, but can't.
Eg:
twogrp<-c(rnorm(10)+4,rnorm(10)+20)
gap.plot(twogrp,rnorm(20),gap.bounds=c(8,16),gap.axis="x",xlab="X
values",
xtics=c(4,7,17,20),ylab="Y
2006 Jan 17
1
Clustering function
Dear mailing group,
I have loaded an Excel file into R by calling it ".csv" and using the
"read.csv" function in R. However then I want to use the (limma package
specific, I believe) function "hclust", which clusters data in a tree
dendrogram, by similarity. However, I receive the errors msg.s: 1) "missing
observations in cov/cor" 2) "In
2008 Jul 25
3
Bug in gap.plot
Hi, all
I am trying to make a plot with a axis break and I want the whole plot
to be line, not points. However, when I execute the following command
half of the graph is points and the other lines.
gap.plot(Xdata, Ydata,gap=c(5,6),gap.axis="x",type="l")
I think it might be a bug in plotrix. I would greatly appreciate your
input. If there is another way to do it, I
2010 Sep 09
4
Axis break with gap.plot()
Hi everyone.
I'm trying to break the y axis on a plot. For instance, I have 2 series
(points and a loess). Since the loess is a "continuous" set of points, it
passes in the break section. However, with gap.plot I cant plot the loess
because of this (I got the message "some values of y will not be
displayed").
Here's my code:
library(plotrix);
#generate some data
x
2008 Jul 26
1
issues with gap.plot function
Dear all:
I have the following codes:
Xdata<-c(2,3,8,9,10)
Ydata<-1:5
gap.plot(Xdata, Ydata,gap=c(5,6),gap.axis="x",type="o")
However, the type='o' seems only work on the first part of gap plot, the second half of the plot always just points, you can not add lines on that part, any help will be highly appreciated. I would like to have these two parts of
2011 Jan 21
2
Unexpected Gap in simple line plot
I am getting an unexpected gap in a simple plot of monthly data series.
I have created a csv file of monthly climate observations that I store
on-line. When I download the csv file and plot one of the series, I get a
gap even though there is data for the missing point.
Here is a snippet to show the problem.
## Strange plot results
link <-
2009 May 28
1
plotting time series with data gap using type line- but do not want to connect gap with line
I have a time series of about 1500 measurements. There are sporadic data
gaps. I would like to plot the time series with type "line". I only want
a line to connect the periods with data; I don't want a line to connect
the points across a data gap. Is there a function or recommended method
to deal with this?
For example
there are 2000 days
days 1:1000 each have one
2005 May 04
2
loading gap package
Dear R users,
I did install R. 2.0.1, and try to load "gap" package.
However, below is the message shown when I did load it. Can anybody
please let me know my mistakes?
----
> library()
> library(gap)
Loading required package: MASS
Loading required package: genetics
Loading required package: combinat
Loading required package: gdata
Error: package 'gdata' could not be