At 2:40 PM +0900 9/17/09, Gundala Viswanath wrote:
I have a data frame (dat). What I want to do is for each row,
divide each row with the sum of its row.
The number of row can be large 1million.
Is there a faster way than doing it this way?
datnorm;
for (rw in 1:length(dat)) {
tmp -
Hi,
I m not able to plot normalized data(normalization by rma) using boxplot. I
don't know why?
basically, object(formed of normalized data) belong to ExpressionSet class.
It is showing error
Error in x[!xna] : object of type 'S4' is not subsettable
In addition: Warning messages:
1: In is.na(x)
Hi all,
I installed the library inline to my default R-enviroment
(c:\Programme\R.. )
downloaded and installed RTools from
http://www.murdoch-sutherland.com/Rtools/
to c:\Rtools.
Path variable is set right (with respect to order) but I get still the
error message
from my R
Error in
I have a data file that looks like this.
__DATA__
D7KAR5Z02F447V 176 G 0.22
D7KAR5Z02J3WLG 94 A 1.0529
D7KAR5Z02F4K6L 198 a 0.13
D7KAR5Z02J4SYO 67 C 0.9528
D7KAR5Z02J4SYO 83 C 1.0129
D7KAR5Z02J4SYO 97 T 0.13
D7KAR5Z02J4SYO 166 A 0.9427
I want the rows
On 09/17/2009 07:30 AM, _ wrote:
Hi all,
when using .jinit() I get the message .jinit() : Cannot create Java
virtual machine (-1).
You probably also need to set JAVA_HOME to that location, and have the
bin directory (the one that contains java.exe) in your PATH as well.
Usually, support
hi,
is it possible to convert latex code to pdf in R (like a latex-program
would do it)?
Is there a package that comes with this capabilities?
My problem is that I want to generate tables automatically -
and I can't use a latex editor at that computer ...
Besides latex ... are there
hi everyone,
Its really helped, it almost as what I wanted.
Thanks alot.
On Sat, Sep 12, 2009 at 4:30 AM, Greg Snow greg.s...@imail.org wrote:
Does this do what you want?
library(TeachingDemos)
ms.pent - function(ang=0,...) {
theta - seq(ang, length.out=6, by=2*pi/5)
Dear R users,
I'm trying to implement a self-defined function with multiple
arguments, one of which is an array, but I find that the result is a
single value instead of an array.
This is the example I'm working on:
# define integration limit vector
Mabslim - c(-17.95, -16.65, -17.27,
is it possible to convert latex code to pdf in R (like a
latex-program would do it)?
Is there a package that comes with this capabilities?
My problem is that I want to generate tables automatically -
and I can't use a latex editor at that computer ...
Besides latex ... are there
Good morning once more. My problem of yesterday has been addressed. Having
learned a few tricks from that, I wish to ask another question in connection
with that. My data is a cosmic ray data consisting of dates and counts. When
I plot a graph of counts versus dates, the resultant signal shows a
Martin Batholdy wrote:
is it possible to convert latex code to pdf in R (like a latex-program
would do it)?
Is there a package that comes with this capabilities?
Unfortunately you're out of luck if you're seeking a direct path from LaTeX
code generated in R to pdf without passing
Hello All!
I calculate a variogram using the function variog (package geoR)
afterwards I use variofit to fit a spherical model (see code below).
Now I just changed the units of the variable (in this case MPa to kPa
just a factor of 1000). If I do so, I get a different fit and
therefore
Can someone suggest which package is required for optimization of linear
program with quadradic constraint.
Eg max x1+x2+x3
subject to
x1+x2+x3=10
x3^2 = 0
--
View this message in context:
http://www.nabble.com/Quadradic-constraint-in-optimization-of-linear-program-tp25487057p25487057.html
Hi,
for basic tables (e.g. display a data.frame without fancy formatting),
you could try the textplot() function from the gplots package, or this
rough function for Grid graphics,
source(http://gridextra.googlecode.com/svn/trunk/R/tableGrob.r;)
# install.packages(gridextra,
On Thu, Sep 17, 2009 at 10:08:57AM +0200, Philipp Pagel wrote:
is it possible to convert latex code to pdf in R (like a
latex-program would do it)?
Is there a package that comes with this capabilities?
My problem is that I want to generate tables automatically -
and I can't use
Hello,
You could try :
- odfWeave : to generate odf (open office...) report
- R2HTML and hwriter : to generate html report
- ascii : to generate asciidoc http://www.methods.co.nz/asciidoc/ report
and then convert it to html, xml, pdf and more.
2009/9/17 Philipp Pagel p.pa...@wzw.tum.de
On
Try this,
sapply(Mabslim , my_gamma, alpha=-1, xstar = -21, xmax = -27)
or wrap it with ?Vectorize,
vmy_gamma = Vectorize(my_gamma, vectorize.args = xlim)
vmy_gamma(alpha=-1, xstar = -21, xlim= Mabslim, xmax = -27)
HTH,
baptiste
2009/9/17 Maurizio Paolillo paoli...@na.infn.it:
Dear R
On 17-Sep-09 08:10:47, ogbos okike wrote:
Good morning once more. My problem of yesterday has been addressed.
Having learned a few tricks from that, I wish to ask another question
in connection with that. My data is a cosmic ray data consisting of
dates and counts.
When I plot a graph of
I think this is what you want:
df - data.frame(x1=1:11,x2=2:12,x3=3:13,y=4:14)
grep('^x',names(df))
[1] 1 2 3
The returned indexes refer to the column positions, so you could do:
names(df)[grep('^x',names(df))]
[1] x1 x2 x3
or
df[,grep('^x',names(df))]
x1 x2 x3
1 1 2 3
2 2 3 4
3 3
Hi,
I'm new to this mailing list and to R-programming so if the question is stupid
I apologize.
I have to create a package, which includes an S4-class called BList. For
objects of this class I implemented a method show, which displays the first
15 data-lines of the object. I further
Hello all,
I tried to install the GUI interface JGR for R yesterday on my Windows
Vista machine running R 2.9.2.
It did install and run but whenever I ran the package manager it
crashed. It also did not appear to display all the available
packages. For instance Hmisc and bayesm were not in the
Hello all,
I tried to install the GUI interface JGR for R yesterday on my Windows
Vista machine running R 2.9.2.
It did install and run but whenever I ran the package manager it
crashed. It also did not appear to display all the available
packages. For instance Hmisc and bayesm were not in the
SH == Schalk Heunis schalk.heu...@enerweb.co.za
on Thu, 17 Sep 2009 11:15:16 +0200 writes:
SH I think this is what you want:
df - data.frame(x1=1:11,x2=2:12,x3=3:13,y=4:14)
grep('^x',names(df))
SH [1] 1 2 3
SH The returned indexes refer to the column positions, so you
Hello,
I don't see what's wrong with turnpoints() from pastecs. It is easy to
use, and provides additional information for each turnpoints, i.e.,
probability of occurrence against the null hypothesis that the series is
purely random, and the number of bits of information associated with the
On 09/17/2009 12:04 PM, Martin Maechler wrote:
SH == Schalk Heunisschalk.heu...@enerweb.co.za
on Thu, 17 Sep 2009 11:15:16 +0200 writes:
SH I think this is what you want:
df- data.frame(x1=1:11,x2=2:12,x3=3:13,y=4:14)
grep('^x',names(df))
SH [1] 1 2 3
SH
Hi all,
I need to automate a process in order to prepare a a big loop in the future
but I have a problem with the *command function*
First I fit a model with lm
model1-lm(data2[,2]~data2[,1]+I(data2[,1]^2)+I(data2[,1]^3)+I(data2[,1]^4))
I extract the coefficients to build the polynomial.
I've had similar problems. See:
http://article.gmane.org/gmane.comp.lang.r.rosuda.devel/747
Although a bit out of date, there is a page on GUIs for R at
these two links:
http://www.sciviews.org/_rgui/
http://wiki.r-project.org/rwiki/doku.php?id=guis:guis
On Thu, Sep 17, 2009 at 5:58 AM, David
Hi!
I've performed a Google Scholar Search using a query, let's say Frank
Harrell, and parsed the links to the EndNote references from the resulting
HTML code. Now I'd like to download all the references automatically. For
this, I have tried to use RCurl, but I can't seem to get it working: I
Try this after read the data file:
dat[is.na(dat[,5]),5] - '-'
On Thu, Sep 17, 2009 at 3:33 AM, Gundala Viswanath gunda...@gmail.com wrote:
I have a data file that looks like this.
__DATA__
D7KAR5Z02F447V 176 G 0.22
D7KAR5Z02J3WLG 94 A 1.05 29
D7KAR5Z02F4K6L 198 a 0.13
The 2nd constraint holds trivially and the 1st constraint implies that the
maximum is 10. The solution is not unique and any values of the
variables satisfying the 1st constraint are optimum. No software
needed.
On Thu, Sep 17, 2009 at 4:19 AM, pragathichi pragathichitr...@tcs.com wrote:
Can
Hi,
Suppose 'x' is a vector of length n and 'y' is a vector of length m, I
am wondering what the time complexity of 'match(x,y)' is. Is it n
times m?
Regards,
Peng
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
I have a file of the following form
-11 -10 -9 -8
-10 -9 -8 NA
-9 -7NA NA
-8NA NA NA
So basically a NxN matrix of log scores. I want to get a heatmap of these
log scores but I'm having a problem.
I'm using the following code
library(gplots)
Dear all,
I want to directly write the loglike function of poisson- lognormal
regression and then estimate the parameters. the response (Y)is count
and I have two explanatory variable (x1:nominal) and (x2:continiuouse).
which package in R can be used ?.How can input the data and write the
This was working a few weeks ago, but perhaps the package has been updated
since then.
model.1 - lrm(response ~ p_value, data=c_abl_oncogene_1_RTK)
When I run the following command . . . .
prediction.1 - predict(model.1, type=c(fitted))
I get the following error message. . . .
Error in
On Sep 17, 2009, at 4:31 AM, Philipp Pagel wrote:
On Thu, Sep 17, 2009 at 10:08:57AM +0200, Philipp Pagel wrote:
is it possible to convert latex code to pdf in R (like a
latex-program would do it)?
Is there a package that comes with this capabilities?
My problem is that I want to generate
Hi,
Using Ape, I have constructed an object of class phylo, using the
method 'nj' (lets call the object 'tree_ja').
I also have a given subset of 'tree_ja' in a vector (lets call the
vector 'subspecies').
What I want to do, is construct a nj tree - plot(tree_ja) - but have the
species in
_ wrote:
Hi all,
I installed the library inline to my default R-enviroment
(c:\Programme\R.. )
downloaded and installed RTools from
http://www.murdoch-sutherland.com/Rtools/
to c:\Rtools.
Path variable is set right (with respect to order) but I get still the
error message
from my R
Error
On Sep 17, 2009, at 8:58 AM, Richardson, Patrick wrote:
This was working a few weeks ago, but perhaps the package has been
updated since then.
model.1 - lrm(response ~ p_value, data=c_abl_oncogene_1_RTK)
When I run the following command . . . .
prediction.1 - predict(model.1,
Hi bioinformatics_guy
I think you are looking for the image function:
image(mat)
The heatmap.2 function does hierarchical clustering on rows and columns and
then orders the rows and columns according to the results of the clustering.
Image simply plots the matrix.
HTH
Schalk Heunis
On Thu,
try running it on a grid within system.time()
And the answer will be revealed.
Tal
On Thu, Sep 17, 2009 at 3:15 PM, Peng Yu pengyu...@gmail.com wrote:
Hi,
Suppose 'x' is a vector of length n and 'y' is a vector of length m, I
am wondering what the time complexity of 'match(x,y)' is. Is
On Thu, 17 Sep 2009, Peng Yu wrote:
Hi,
Suppose 'x' is a vector of length n and 'y' is a vector of length m, I
am wondering what the time complexity of 'match(x,y)' is. Is it n
times m?
match() hashes the second argument then does hash lookups for the first
argument (the source is in
Schalk,
Thats a great function! The only question is, is it as flexible as
heatmap.2?
I figured out how to get it from rearranging the rows and columns but I
can't figure out how to label the rows and columns? What I like about the
heatmap.2 is that it gives a grid and histogram of the heatmap
On Thu, 17 Sep 2009, [ISO-8859-1] Noela Sánchez wrote:
Hi all,
I need to automate a process in order to prepare a a big loop in the future
but I have a problem with the *command function*
First I fit a model with lm
On Thu, 17 Sep 2009, William Revelle wrote:
At 2:40 PM +0900 9/17/09, Gundala Viswanath wrote:
I have a data frame (dat). What I want to do is for each row,
divide each row with the sum of its row.
The number of row can be large 1million.
Is there a faster way than doing it this way?
Hi,
I can use the following code to generate a matrix, each column of
which is 'x'. But I have to specify '5' twice in the second command. I
am wondering if there is a better way to do it.
x=1:10
matrix(rep(x,5),nc=5)
t(matrix(rep(x,5),nc=5))
Regards,
Peng
On 09/17/2009 04:02 PM, Peng Yu wrote:
Hi,
I can use the following code to generate a matrix, each column of
which is 'x'. But I have to specify '5' twice in the second command. I
am wondering if there is a better way to do it.
x=1:10
matrix(rep(x,5),nc=5)
t(matrix(rep(x,5),nc=5))
Regards,
On 09/17/2009 04:02 PM, Peng Yu wrote:
Hi,
I can use the following code to generate a matrix, each column of
which is 'x'. But I have to specify '5' twice in the second command. I
am wondering if there is a better way to do it.
x=1:10
matrix(rep(x,5),nc=5)
t(matrix(rep(x,5),nc=5))
Regards,
Or:
replicate(5, 1:10)
On Thu, Sep 17, 2009 at 11:02 AM, Peng Yu pengyu...@gmail.com wrote:
Hi,
I can use the following code to generate a matrix, each column of
which is 'x'. But I have to specify '5' twice in the second command. I
am wondering if there is a better way to do it.
x=1:10
Dear All,
maybe this is something obvious, I seem to be incapable of
understanding how S4 works.
So, in package 'A' I defined a summary method for my class:
setMethod(summary, signature(object=ListHyperGResult),
function(object, pvalue=pvalueCutoff(object), categorySize=NULL) {
Try placing the column names into labCol and the rownames into labRow
e.g.heatmap.2(mat,dendrogram=c(none),
Rowv=F, Colv=F, labRow = seq(-7.5,7.5,by=5), labCol=seq(-3,3,by=2))
Schalk Heunis
On Thu, Sep 17, 2009 at 3:53 PM, bioinformatics_guy wwwhite...@gmail.comwrote:
Schalk,
Thats a great
Greetings tree and forest coders-
I'm interested in comparing randomforests and regression tree/ bagging tree
models. I'd like to propose a basis for doing this, get feedback, and
document this here. I kept it in this thread since that makes sense.
In this case I think it's appropriate to
Hi,
I don't understand what the meaning of the following lines returned by
model.matrix(). Can somebody help me understand it? What can they be
used for?
attr(,assign)
[1] 0 1 2 2
attr(,contrasts)
attr(,contrasts)$A
[1] contr.treatment
attr(,contrasts)$B
[1] contr.treatment
Regards,
Peng
a=2
The validate.rpart function in the rms package will handle the rpart
part of this. It makes sure that the tree is re-built from scratch for
each re-sample. It estimates MSE and Somers' Dxy (twice (ROC area -.5)).
Frank
jamesmcc wrote:
Greetings tree and forest coders-
I'm interested in
Hi,
I want to do a pca using a set of variables which are ordered. I have used
the dudi.mix method from the ade4 package, but when I do the $index it shows
me that R has considered my variables as quantitative.
What should I do?
--
View this message in context:
Hello,
I have 12 sample each sample has got 1000 observation, i.e I have a matrix X
with 1000 rows and 12 columns!
m - svm(t(X))
p - predict (m)
Can anyone tell me how to use svmtrain() in R!
Many Yhanks,
Samuel
[[alternative HTML version deleted]]
Dear Tinn-R users,
I've a basic question: I don't understand how to configure Tinn-R to hint
about the required elements in a certain code, e.g. when typing mean(
a box would pop-up just above the code informing that (x, trim = 0, na.rm =
FALSE, ...) is the required info which must be
Good Mourning,
I have a function to generate a matrix as I show part of it;
g[j,i]-if (gen[j,i]==0) al1[i,1]+al1[i,1] else ...
However i would like that this function occurred with a probability P and
that another function (another formula to generate g matrix) with
probability P-1
That´s it,
Hi all,
I need to automate a process in order to prepare a a big loop in the future
but I have a problem with the *command function*
First I fit a model with lm
model1-lm(data2[,2]~data2[,1]+I(data2[,1]^2)+I(data2[,1]^3)+I(data2[,1]^4))
I extract the coefficients to build the polynomial.
I've been trying to understand the as.Date functionality and I have a date
and time stamp field that looks like this:
Tue Sep 15 09:22:09 -0600 2009
and I need to turn it into an R Date object for analysis.
Simple date conversions I have down, no problem:
adate = c(7/30/1959)
Hi,
On Sep 17, 2009, at 7:39 AM, Samuel Okoye wrote:
Hello,
I have 12 sample each sample has got 1000 observation, i.e I have a
matrix X with 1000 rows and 12 columns!
m - svm(t(X))
p - predict (m)
Can anyone tell me how to use svmtrain() in R!
I guess you're using the svm in the e1071
A quick question about stableFit() in the fBasics package. Is it
possible to constrain the gamma and delta parameters and only estimate
the alpha and beta parameters? I tried:
##
set.seed(1953)
r = rstable(n = 1000, alpha = 1.9, beta = 0.3)
stableFit(r, gamma=1, delta=0, type=c(q,
Hi,
I don't find a r-inferno.pdf that has detailed table of contents and
bookmarks. If it is possible, can somebody help generated one and post
it on line?
Regards,
Peng
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Marcio
Define two functions, e.g.
f1-function(i,j) i+j
f2-function(i,j) i-j
then call them based on the probability e.g. 0.7
f - if(runif(1)0.7) f1 else f2
f(1,1)
or more compact
(if(runif(1)0.7) f1 else f2)(1,1)
HTH
Schalk Heunis
On Thu, Sep 17, 2009 at 5:10 PM, Marcio Resende
Dear R users,
I would like to optimize a linear approximation of a quadratic function
using lpSolve. My code runs without any error or warning message but the
constraints that I set don't seem to work properly.
Nevertheless, I am certain that my code is somewhere wrong.
I would like to solve
Assuming storage is not a problem, first generate two matrices, one by each
method, call these A and B. Then if dim(A) = dim(B) = c(m,n) and k = m*n
z - rbinom(k,1, .7)
result - A*z + B*(1-z)
Bert Gunter
Genentech Nonclinical Biostatistics
-Original Message-
From:
Hello!
I am trying with this question again:
I would like to test few distributional assumptions for some behavioral
response data. There are few theories about true distribution of those
data, like: normal, lognormal, gamma, ex-Gaussian
(exponential-Gaussian), Wald (inverse Gaussian) etc. The
P. Branco wrote:
I have used the dudi.mix method from the ade4 package, but when I do the
$index it shows
me that R has considered my variables as quantitative.
What should I do?
You should make sure that they are encoded as ordered factors, which has
nothing to do with ade4's
Hi
I do not know rma but from help page boxplot requires as input a formula,
list (only some list of numerics), data frame or numeric vector. I am not
sure if your object is one of these. If not you need to convert it to
object which is acceptable for boxplot.
Regards
Petr
Hi,
I am trying to add multiple variance structures such as the first example
below:
vf1 - varComb(varIdent(form = ~1|Sex), varPower())
However my code below will not work can anybody please advise me?
VFcomb-varComb(varExp(form=~depcptwithextybf),varFixed(form=~FebNAO))
also if you have two
Gábor Csárdi wrote:
Dear All,
maybe this is something obvious, I seem to be incapable of
understanding how S4 works.
So, in package 'A' I defined a summary method for my class:
setMethod(summary, signature(object=ListHyperGResult),
function(object,
Hi
r-help-boun...@r-project.org napsal dne 17.09.2009 04:14:24:
Hi,
I want to construct a data.frame 'y' by using x$x and x$y. I think
that there might be better ways to do it (because, for example, we can
use a_matrix[3:5,] to extract certain rows, where 'a_matrix' is a
matrix). Can
Hi everyone,I have a data daily data (x) for 10 years starting from
04-01-1995 to 03-31-2005.
I was able to get the yearly sum for the ten years using
aggregate(x, years, sum).
But this gave me the yearly sum for 1995 (Apr- Dec); 1996 (Jan-Dec)
-2005 (Jan-Mar).
But I want to get the
I wrote a post on the Revolutions blog a little while back discussing
the difference between the two (and the history of the - operator).
You can find it on blog.revolution-computing.com at:
http://bit.ly/3YWw3R
# David Smith
On Wed, Sep 16, 2009 at 7:58 PM, Peng Yu pengyu...@gmail.com wrote:
Subodh
Assuming the data is ordered by date then you can define
fin.years = (0:(10*12-1)) %/% 12
then use aggregate:
aggregate(x, list(fin.years),sum)
HTH
Schalk Heunis
On Thu, Sep 17, 2009 at 6:11 PM, Subodh Acharya shoeb...@gmail.com wrote:
Hi everyone,I have a data daily data (x) for 10
Hey, check this link: http://www.burns-stat.com/pages/Tutor/R_inferno.pdf
Greetings
Víctor
De: r-help-boun...@r-project.org en nombre de Peng Yu
Enviado el: jue 17/09/2009 10:43
Para: r-h...@stat.math.ethz.ch
Asunto: [R] r-inferno.pdf with detailed table of
RS27 wrote:
Hi,
I am trying to add multiple variance structures such as the first example
below:
vf1 - varComb(varIdent(form = ~1|Sex), varPower())
However my code below will not work can anybody please advise me?
Graham Etherington wrote:
Hi,
Using Ape, I have constructed an object of class phylo, using the
method 'nj' (lets call the object 'tree_ja').
I also have a given subset of 'tree_ja' in a vector (lets call the
vector 'subspecies').
What I want to do, is construct a nj tree -
Try either of these which convert to year and qtr and then
shift the qtr by one. The resulting series is labeled by
the year in which the series dates start. Use
as.integer(...) + 1 if you prefer to label by ending year.
library(zoo)
# test data
DF - data.frame(date = Sys.Date() + 1:1000, value
On Thu, Sep 17, 2009 at 9:11 AM, Subodh Acharya shoeb...@gmail.com wrote:
Hi everyone,I have a data daily data (x) for 10 years starting from
04-01-1995 to 03-31-2005.
I was able to get the yearly sum for the ten years using
aggregate(x, years, sum).
But this gave me the yearly sum for 1995
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Thomas Lumley
Sent: Thursday, September 17, 2009 6:59 AM
To: William Revelle
Cc: r-h...@stat.math.ethz.ch
Subject: Re: [R] Fastest Way to Divide Elements of Row With Its RowSum
That's a reasonable request that I have
planned for whenever I revise it.
However, I'm not going to be doing that
for some time yet (unit of time is somewhere
in the months to years range).
If someone is keen to do that, I can make
the LyX file available to them.
Patrick Burns
Hi,
I'm not sure of the correct nomenclature or function for what I'm trying
to do.
I'm interested in calculated a logistic regression on a binary dependent
variable (True,False).
There are a few ways to easily do this in R. Both SVM and GLM work easily.
The part that I want to add is
Can I run a lack-of-fit test using R? How do I do that?
Thank you
[[alternative HTML version deleted]]
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PLEASE do read the posting guide
Hi Thierry,
I tried the code suggested below, but it didn't work fully. The ribbon
showed up correctly for first and last days, but the days in between
appeared to be ignored. I tried other ways of feeding geom_ribbon the
summary stats but my ways didn't work either.
Thanks for trying to
Dear R list,
is it possible to define a new family (and a new link function) for gam
in gam package? How?
I read the help for gam, family, gam.model, make.link but I did not find
a solution.
Regards
--
Corrado Topi
Area 18,Department of Biology
University of York, York, YO10 5YW, UK
On 9/17/2009 9:16 AM, Uwe Ligges wrote:
_ wrote:
Hi all,
I installed the library inline to my default R-enviroment
(c:\Programme\R.. )
downloaded and installed RTools from
http://www.murdoch-sutherland.com/Rtools/
to c:\Rtools.
Path variable is set right (with respect to order) but I get
If you are really serious about your variables being ordinal, you
should analyze them using polychoric correlations. See polycor package
by John Fox.
On Thu, Sep 17, 2009 at 10:52 AM, Mark Difford mark_diff...@yahoo.co.uk wrote:
I have used the dudi.mix method from the ade4 package, but when I
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
On 17-Sep-09 17:28:16, Noah Silverman wrote:
Hi,
I'm not sure of the correct nomenclature or function for what
I'm trying to do.
I'm interested in calculated a logistic regression on a binary
dependent variable (True,False).
There are a few ways to easily do this in R. Both SVM and GLM
Sorry if this is somewhere in the fine manuals but I've been unable to locate
it.
Does dyn.load use a search path or does it just look in the current
directory for non-fully-qualified filenames? If there is a search path, what
is it?
Thanks for your help
--
View this message in context:
On Sep 17, 2009, at 11:25 AM, esawdust wrote:
I've been trying to understand the as.Date functionality and I have
a date
and time stamp field that looks like this:
Tue Sep 15 09:22:09 -0600 2009
and I need to turn it into an R Date object for analysis.
Simple date conversions I have
Ted,
Thanks for the reply.
For the example, I'm not looking to predict THE winner, but to find
the best probabilities of winning.
It would seem that the process of iterating through possible
coefficients would be the same as a standard GLM, the evalation part
as you work through them would
On Sep 17, 2009, at 2:06 PM, (Ted Harding) wrote:
On 17-Sep-09 17:28:16, Noah Silverman wrote:
Hi,
I'm not sure of the correct nomenclature or function for what
I'm trying to do.
I'm interested in calculated a logistic regression on a binary
dependent variable (True,False).
There are a few
Steve Jaffe wrote:
Sorry if this is somewhere in the fine manuals but I've been unable to
locate it.
Does dyn.load use a search path or does it just look in the current
directory for non-fully-qualified filenames? If there is a search path,
what is it?
Thanks for your help
I
Hi,
The first line has less elements than the rest of
'rownames_colnames.write.table.xls'. I am wondering if there is a way
to print an additional '\t' at the beginning of the first line.
$ Rscript write.table.R
x=matrix(1:20,nc=2)
rownames(x)=letters[1:10]
colnames(x)=letters[1:2]
Marcio Resende wrote:
Good Mourning,
I have a function to generate a matrix as I show part of it;
g[j,i]-if (gen[j,i]==0) al1[i,1]+al1[i,1] else ...
However i would like that this function occurred with a probability P and
that another function (another formula to generate g matrix)
On Sep 17, 2009, at 3:23 PM, Peng Yu wrote:
Hi,
The first line has less elements than the rest of
'rownames_colnames.write.table.xls'. I am wondering if there is a way
to print an additional '\t' at the beginning of the first line.
$ Rscript write.table.R
x=matrix(1:20,nc=2)
Hi,
I am trying to generate all unordered combinations of a set of
numbers / characters, and I can only find a (very) clumsy way of doing
this using expand.grid. For example, all unordered combinations of
the numbers 0, 1, 2 are:
0, 0, 0
0, 0, 1
0, 0, 2
0, 1, 1
0, 1, 2
0, 2, 2
1, 1, 1
1, 1, 2
1,
On Sep 17, 2009, at 11:13 AM, Peng Yu wrote:
Hi,
I don't understand what the meaning of the following lines returned by
model.matrix(). Can somebody help me understand it? What can they be
used for?
attr(,assign)
[1] 0 1 2 2
attr(,contrasts)
attr(,contrasts)$A
[1] contr.treatment
Hello, dear R-ers!
I have a data frame:
x-data.frame(a=c(4,2,4,1,3,4),b=c(1,3,4,1,5,0),c=c(NA,2,5,3,4,NA),d=rep(NA,6),e=rep(NA,6))
x
When x$a==1, I would like to replace NAs in columns d and e with 8 and
9, respectively
When x$a != 1, I would like to replace NAs in columns d and e 101 and
1022,
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