Hi,
On Fri, May 13, 2011 at 7:06 PM, wong, honkit (Stephen)
wrote:
> Dear All,
> I am new to R. I have a 2 column data frame with more than ten thousand
> rows. Something like below. I want to add up all duplicated items, e.g. the
> three "aa" add up together to get a single value gene=a, value=7
Hi:
There are many ways to do this sort of thing in R; one way is (naming
your example data frame d)
aggregate(value ~ gene, data = d, FUN = sum)
gene value
1 aa74
2 bb10
3 cc 9
4 dd 100
5 ee55
This code line works for R-2.11.0 and later.
HTH,
Dennis
On Fri, May 1
On 14/05/11 14:09, David Winsemius wrote:
On May 13, 2011, at 9:09 PM, Rolf Turner wrote:
On 14/05/11 02:28, Duncan Murdoch wrote:
One way to end up with a "corrupted" workspace is to save it with a
dependency on a particular package, then try to load it when that
package is unavailable.
Dear All,
I am new to R. I have a 2 column data frame with more than ten thousand
rows. Something like below. I want to add up all duplicated items, e.g. the
three "aa" add up together to get a single value gene=a, value=74. How can I
do that?? Thanks for help !
gene value
aa 20
bb 10
cc
On May 13, 2011, at 9:09 PM, Rolf Turner wrote:
On 14/05/11 02:28, Duncan Murdoch wrote:
One way to end up with a "corrupted" workspace is to save it with a
dependency on a particular package, then try to load it when that
package is unavailable. I'm going to see if R can handle that cas
Benjamin Caldwell berkeley.edu> writes:
>
> Sub: using glmer to fit a mixed-effects model with gamma-distributed
> response variable
>
> Hello,
> I'm currently trying to fit a mixed effects model , i.e.:
>
> > burnedmodel1.2<-glmer(gpost.f.crwn.length~lg.shigo.av+dbh+leaf.area+
> bark.thick.bh
elaine kuo gmail.com> writes:
>
> Dear list,
>
> I have 603 numbers depicting range sizes of birds in Japan.
> I would like to learn if the 603 range sizes are randomly distributed or
> not, in order to check if they meet mid-domain effects.
>
> Please kindly advise if any R package or functio
Hi,
I am plotting data in which the x values are a timestamp. I am trying to
change the x-ticks so they will be in specified hours of the day, but it
always start from hour 4 of the day. And I need it to start from the
beginning of the axis (at x=0) and then each tick be on the interval I
specif
On 14/05/11 02:28, Duncan Murdoch wrote:
One way to end up with a "corrupted" workspace is to save it with a
dependency on a particular package, then try to load it when that
package is unavailable. I'm going to see if R can handle that case
more gracefully.
Pardon me for breathing (whic
On 14/05/11 10:00, Benjamin Caldwell wrote:
Hello,
I'm trying to compare the fit of two distributions, normal and gamma, to a
histogram of my response variable.
rate<-mean(na.omit(rwb$post.f.crwn.length))/var(na.omit(rwb$post.f.crwn.length))
shape<-rate*mean(na.omit(rwb$post.f.crwn.length))
his
On 13/05/2011 4:57 PM, lyolya wrote:
Hello,
I am experiencing a problem in reading a database in Russian. The problem
appears when it comes to char variables. I have already tried changing the
encoding, i.e.
options(encoding="UTF-8")
and
options(encoding="KOI8-R")
but every time there appear
I know I'm not supposed to use them... but they're just so easy! I
have trouble defining an appropriate function for plyr or apply!
data<-rnorm(144)
groups1<-c('a','b','c','d')
groups2<-c('aa','bb','cc','dd')
machines<-1:12
df<-data.frame(machine=machines,group1=groups1,group2=groups2,U=data,V=2*d
Sub: using glmer to fit a mixed-effects model with gamma-distributed
response variable
Hello,
I'm currently trying to fit a mixed effects model , i.e.:
> burnedmodel1.2<-glmer(gpost.f.crwn.length~lg.shigo.av+dbh+leaf.area+
bark.thick.bh+ht.any+ht.alive+(1|site/transect/plot), family=gaussian,
na.
Hello,
I'm trying to compare the fit of two distributions, normal and gamma, to a
histogram of my response variable.
rate<-mean(na.omit(rwb$post.f.crwn.length))/var(na.omit(rwb$post.f.crwn.length))
shape<-rate*mean(na.omit(rwb$post.f.crwn.length))
hist((rwb$post.f.crwn.length), main="rwb$post.f.c
I cannot seem to get a L'abbe plot to work on R. I do not understand what
the X coordinates, or alternatively an object of class metabin, is
supposed to mean. What is a class of metabin?
Institute of Behavioral Genetics
University of Colorado, Boulder
whitney.mel...@colorado.edu
_
Hello,
I am experiencing a problem in reading a database in Russian. The problem
appears when it comes to char variables. I have already tried changing the
encoding, i.e.
options(encoding="UTF-8")
and
options(encoding="KOI8-R")
but every time there appear to be something unreadable in the dat
Thanks for your note Max. Part of the picture is how predictions would be
used. If they are used in a "forced choice" way (quite a shame because the
best decision is often no decision - get more data) things are different.
If there are gray zones or predicted probabilities are of interest then I
It looks like your MySQL is missing the libmysql.lib file. Download it
from MySQL then put it in the following location:
C:/Program Files/MySQL/MySQL Server 5.5/lib/opt/libmysql.lib
If you are still having problems, you could try using RODBC instead.
_
This code works great. I will improve my descriptions of what I want in the
future. Thanks for the help.
-Original Message-
From: gunter.ber...@gene.com [mailto:gunter.ber...@gene.com]
Sent: Friday, May 13, 2011 03:44 PM
To: Thompson, Adele - adele_thomp...@cargill.com
Cc: dwinsem...@com
Hi,
I am trying to use the Tps procedure to visualize 3 variables in XYZ space, but
keep getting the error messages below:
Warning messages:
1: In Krig.find.gcvmin(info, lambda.grid, gcv.grid$GCV, Krig.fgcv, :
GCV search gives a minimum at the endpoints of the
grid search
2: In Krig.find.gcvmin(
Dear All,
This may be a silly question, but I have tried searching through a few of
the existing threads already, and haven't found any information on this.
I am trying to color code entire continents/regions (Asia, North America,
Africa, etc.) based on the number of relevant companies. The data
Adele:
You are of course correct -- my earlier proposed solution is dumb
(thank you for being polite and not saying this :-) )
With your more complete explanation -- which might have helped you get
a quicker reply earlier from others had you given it at the beginning
-- I was able to come up wit
Thanks all for the replies. I am getting better slowly but surely. I imagine
that I will get better at figuring out things as well so I don't have to post
as many questions. I do lots of searches, but still cannot figure out how to do
everything that I need.
The new code is as such:
par(mfrow=c
Use par with oma to leave room for the overall title, then you need another
function to create the title. The mtext function is probably the easiest.
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.s...@imail.org
801.408.8111
> -Original Message-
On 11-05-13 4:21 PM, adele_thomp...@cargill.com wrote:
Easy fix. Under ?par, I don't see where I can enter an overall title. Should I
add a text command or something?
mtext() writes text in the margins; argument "outer" puts it in the
outer margins.
Duncan Murdoch
-Original Message--
Easy fix. Under ?par, I don't see where I can enter an overall title. Should I
add a text command or something?
-Original Message-
From: greg.s...@imail.org [mailto:greg.s...@imail.org]
Sent: Friday, May 13, 2011 03:17 PM
To: Thompson, Adele - adele_thomp...@cargill.com; r-help@r-project
Look at the help for par, specifically the section on 'mar' to set the per plot
margins smaller and the section on 'oma' to leave room for the overall title.
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.s...@imail.org
801.408.8111
> -Original Messag
I am plotting 28 plots on one screen:
par(mfrow=c(4,7))
for (i in 1:28) {
a<-seq(1,3,1)
plot(a,a, ann=FALSE)
}
I want a main title for all the plots (I tried using main but that doesn't
work). I deleted the axes, but am not sure how to delete the space. There
are such large margins between plots
On Fri, 13 May 2011, Marc Jekel wrote:
Dear R-Fans,
I have been lately working on some plots in R that I save as pdf via the
pdf() command. I have realized that when I open those files in Adobe and then
re-save it within Adobe ("save as..."), the size of the pdf files decreases
rapidly (e.g.
Bill,
Thanks. So it is as we suspected.
Kind regards,
Greg
On 5/13/11 11:19 AM, William Dunlap wrote:
>> -Original Message-
>> From: r-help-boun...@r-project.org
>> [mailto:r-help-boun...@r-project.org] On Behalf Of Greg Hirson
>> Sent: Friday, May 13, 2011 10:58 AM
>> To: R-help@r-proj
Hi,
if I try to install rattle, R fails to install:
rpvm, rsprng, RBGL, pcalg, arulesViz, pkgDepTools, Rgraphviz .
rpvm depends on pvm, rsprng on sprng which is not installed and which
seems not so easy to install on my gentoo systems. ArulesViz depends on
Rgraphviz, RBGL and pcalg depends on
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of Greg Hirson
> Sent: Friday, May 13, 2011 10:58 AM
> To: R-help@r-project.org
> Subject: [R] period in scale parameter of prcomp
>
> Hi all,
>
> Looking at the help file for prco
Hi all,
Looking at the help file for prcomp and the code in
stats:::prcomp.default, the scale parameter for the default S3 method
has a trailing period: it written as
scale.
I assume there is a reason for it (backwards compatibility with S was
suggested) but I thought I'd ask.
Thanks,
Greg
--
Estefania, if you do something like
your.matrix <- matrix(1, 50, 50)
your.matrix[upper.tri(your.matrix)] <- NA
You will have NAs for the entire upper triangle. If you opt to do
your.matrix[upper.tri(your.matrix)] <- ""
The upper triangle will be empty but it will coerc
--- Begin Message ---
Why not using Statconn/RExcel?
-Mensagem original-
De: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
Em nome de Robert Baer
Enviada em: sexta-feira, 13 de maio de 2011 09:33
Para: Asan Ramzan; r-help@r-project.org
Assunto: Re: [R] Excel to R
---
On May 13, 2011, at 10:28 AM, Woida71 wrote:
> I would like to create a certain number of dataframes out of one dataframe
> where each of the dataframes
> is related to a factor. This should be possible with a loop or a function,
> as is very clumsy to do it manually
> when there are quite a lot f
The way to do what you want is to use the split function, for
example,
mydataframes = split(exmpl,exmpl$Site)
This will return a list with all the data frames.
If you don't understand why this is a better solution than
creating many separate data frames, let us know what you plan
to do with t
Dear R experts,
I am trying to use John Fox's effects package to conduct some
post-estimation analysis. I think it is a great package for graphing
predictions after GLM type models. However, I am having problems
figuring out how to produce an adjusted mean. For example, using the
following two
I would like to create a certain number of dataframes out of one dataframe
where each of the dataframes
is related to a factor. This should be possible with a loop or a function,
as is very clumsy to do it manually
when there are quite a lot factors.
For example having a dataframe called "exmpl":
On May 13, 2011, at 10:49 AM, viostorm wrote:
I would like to get the probabilities
of what?
from cph into a vector so I can put
them programatically on a graph.
Does anyone know how to get a list of the probabilities?
require(rms)
?rms
Perhaps:
?Predict
Or
?survest
(You do nee
On Fri, May 13, 2011 at 4:32 AM, Wolfgang Wu wrote:
> I am getting confused in how to use R effectively. Below is the example that I
> would like to optimize, which is basically a loop. In its current version it
> takes about 20 seconds to run. I have looked at the apply function and but
> didn't
The problem with using cumsum, is that the measured output is the cumulative
feed consumed throughout the day. When the animals do not eat for 30 minutes or
so, it will not output a new value, but as soon as they do eat, the scale will
weigh the difference and then output the cumulative feed eat
What is xts? What package?
--- On Fri, 5/13/11, Wolfgang Wu wrote:
> From: Wolfgang Wu
> Subject: [R] More effective calculation for loop
> To: R-help@r-project.org
> Received: Friday, May 13, 2011, 5:32 AM
> I am getting confused in how to use R
> effectively. Below is the example that I
> w
Did you try tweaking the value of the "expand" parameter?
See the help page of biplot for more info.
Kevin
On Fri, May 13, 2011 at 4:38 AM, Anna Renwick wrote:
> Hi all
>
> I have produced a biplot for a PCA (see attached pdf) that I ran however
> the
> names of the variables which are placed
Have you looked into the options for par?, which it looks like can be included
in your call to biplot, perhaps adj or something else to reduce overlap.
Scott
On Friday, May 13, 2011 at 4:38 AM, Anna Renwick wrote:
> Hi all
>
> I have produced a biplot for a PCA (see attached pdf) that I ran ho
I am attempting to analyze Affymetrix exonchip data using the exon map
package. I have installed this package but have had problems installing the
associated programs, specifically RMySQL since no windows binary exists.
I have followed the directions for compiling the package as found on -
http
I would like to get the probabilities from cph into a vector so I can put
them programatically on a graph.
Does anyone know how to get a list of the probabilities? All I can seem to
do is $coef which only contains coefficients.
cph(formula = srv.comb ~ collaterals +
Given the price of the Thinkpad X201 I would be very upset if it
overheated and would contact my supplier for a replacement. I also
understand that this CPU may slow down if it is overheated. You would
probably get a better performance from a desktop workstation or a
larger laptop with better ven
On 28.04.2011, at 12:18, soeren.vo...@uzh.ch wrote:
> On 27.04.2011, at 11:59, soeren.vo...@uzh.ch wrote:
>
>> We are working on a class in C++. The files compile fine (R CMD SHLIB ...)
>> and run in R. A bzipped tar archive with source code can be downloaded from
>> here:
>>
>> http://sovo.md
Thanks a lot!
Best,
Sara
-Ursprungligt meddelande-
Från: istaz...@gmail.com [mailto:istaz...@gmail.com] För Ista Zahn
Skickat: den 12 maj 2011 16:46
Till: Sara Sjöstedt de Luna
Kopia: r-help@r-project.org; Katie Andrle (katie.and...@gmail.com)
(katie.and...@gmail.com)
Ämne: Re: [R] lm a
Dear R-Fans,
I have been lately working on some plots in R that I save as pdf via the
pdf() command. I have realized that when I open those files in Adobe and
then re-save it within Adobe ("save as..."), the size of the pdf files
decreases rapidly (e.g., from 4mb to 1mb). This can also be obse
Usually this kind of error indicates one or two errors. First check that the
path to the input file is correct. Make sure that your input file ends with
csv.
Next problem could be that a spelling error is causing the problem. Make
sure everything is spelled correctly in both the path state
Good morning R community,
I have two questions (and a comment):
1)
A problem with odfWeave. I have an odf document
with a table that spans multiple pages. Each cell in the table is
populated using \sexpr{}. This worked fine on my
own machine (windows 7 box using any R2.x.y, for x>=11) and
on a col
I am getting confused in how to use R effectively. Below is the example that I
would like to optimize, which is basically a loop. In its current version it
takes about 20 seconds to run. I have looked at the apply function and but
didn't seem to get it to work. I am sure this is relatively easy
Hi,
this is my R-Script
library(pls)
file <- "C:\\TXT\\brix.txt"
d <- as.matrix(read.table(file, header=T, sep=",", row.names = NULL))
plsdata <- data.frame(NIR=c(1:nrow(X)))
plsdata$NIR <- I(d[,3:603])
plsdata$Brix <- d[,2]
results <- plsr(Brix ~ NIR, data=plsdata)
after the last string i have t
Thanks Uwe,
it works!
I just have a problem at week 53 which gives me an NA. I guess, this week 53
has to do with the data type set at the database design and collection of
data. Depends on the week/year kind of counting.
--
View this message in context:
http://r.789695.n4.nabble.com/problem-co
when uploading csv file to R, the file.csv should save as".csv" from".
xls",if u just modify suffix of files, files cannot be read .
BTW,who know the problem i meet, "strsplit(txt$Sentence,"，|。|！|？|、")" how to
understand this order~
> txt=read.csv("1988.csv",colClasses="character")
> sentence
Hello,
I want to do a simple correspondence analysis in R, using the ca package.
First, I create and define a 2-by-2-table (table=table(var1,var2)), which looks
like this:
Low(var1) high(var1)
Low(var2) 35 28
High(var2) 26 32
Var1 and Var2 are categorical factors.
W
Hi all
I have produced a biplot for a PCA (see attached pdf) that I ran however the
names of the variables which are placed at the end of the arrows overlap and
are thus unreadable. Similarly some of the numbered points overlap. I was
wondering if there was a way to edit the biplot to move the lab
On May 13, 2011, at 10:52 AM, Estefania Ruiz Vargas wrote:
Hello, I want to create a triangular matrix and only keep the lower
triangle entries without having to allocate memory for the whole
matrix, is there any way I can do something like
A<-matrix(data, nrow=50)
but for a triangular mat
I appreciate all the help and patience. My pea sized brain had yet to grasp
the concept of a function return. results<-function() absolutely works. i
wanted it in a dataframe to most easily transfer it to a database. Ive found
the Rpostgres like data frames better. Im sure a character vector would
Hello, I want to create a triangular matrix and only keep the lower triangle
entries without having to allocate memory for the whole matrix, is there any
way I can do something like
A<-matrix(data, nrow=50)
but for a triangular matrix?
Thanks
ERV
[[alternative HTML version delet
On 2011-05-13 06:42, Vickie S wrote:
Hi
naive question.
It is possible to get R command for omitting rows or cols with missing values
present.
But
if i want to omit rows or cols with i.e .>20% missing values, I
could´t find any package-based command, probably because it is too
simple for anyon
Hi Vickie,
You might try the following:
# some data
set.seed(123)
X <- matrix(rnorm(1000), ncol = 20)
X[sample(1000, 100)] <- NA
# excluding rows with NA >20%
X[!rowMeans(is.na(X)) > 0.2, ]
# excluding columns with NA >10%
X[, !colMeans(is.na(X)) > 0.1]
See ?is.na, ?rowMeans and ?colMeans for
On 11-05-13 6:03 AM, Ivan Calandra wrote:
I'm no expert, but checking the R-help list, I got the impression that
saving a workspace often leads to problems.
The interesting question (for me) would be to know why and how the
corrupted file got corrupted, and then, what to do to avoid the problem
i
--- On Fri, 5/13/11, Vickie S wrote:
> From: Vickie S
> Subject: [R] Quick question: Omitting rows and cols with certain percents of
> missing values
> To: r-help@r-project.org
> Received: Friday, May 13, 2011, 9:42 AM
>
> Hi
> naive question.
> It is possible to get R command for omitting
On May 13, 2011, at 9:42 AM, Vickie S wrote:
Hi
naive question.
It is possible to get R command for omitting rows or cols with
missing values present.
But
if i want to omit rows or cols with i.e . >20% missing values, I
could´t find any package-based command, probably because it is too
sim
Hi
naive question.
It is possible to get R command for omitting rows or cols with missing values
present.
But
if i want to omit rows or cols with i.e . >20% missing values, I
could´t find any package-based command, probably because it is too
simple for anyone to do that manually, though not fo
Frank,
It depends on how you define "optimal". While I'm not a big fan of
using the area under the ROC to characterize performance, there are a
lot of times when likelihood measures are clearly sub-optimal in
performance. Using resampled accuracy (or Kappa) instead of deviance
(out-of-bag or not)
---begin included message --
Is there an automated way to use the survival package to generate
survival
rate estimates and their standard errors? To be clear, *not *the
survivorship estimates (which are cumulative), but the survival *rate *
estimates...
--- end --
The classic method in epidemiolo
Snapsnot3d just creates a flat image. It is possible to export the actual
interactive 3D plot and put in a PDF, just not with the axes and labels.
Thanks,
Peter
-Original Message-
From: Remko Duursma [mailto:remkoduur...@gmail.com]
Sent: Thursday, May 12, 2011 7:17 PM
To: van Rijn, Pet
XiaoLiu,
I can't see the options in bootControl you used here. Your error is
consistent with leaving classProbs and summaryFunction unspecified.
Please double check that you set them with classProbs = TRUE and
summaryFunction = twoClassSummary before you ran.
Max
On Thu, May 12, 2011 at 7:04 PM,
--
From: "Asan Ramzan"
Sent: Friday, May 13, 2011 6:02 AM
To:
Subject: [R] Excel to R
Hello R-help
I am trying to copy and paste large column of data from windows Excel into
R
base speed sheet using:
Data1<-edit(data.frame())
At least on Win
Using anything other than deviance (or likelihood) as the objective function
will result in a suboptimal model.
Frank
-
Frank Harrell
Department of Biostatistics, Vanderbilt University
--
View this message in context:
http://r.789695.n4.nabble.com/Can-ROC-be-used-as-a-metric-for-optimal-model
Dear,
I encountered a problem using the makeSOCKcluster function depending the
patched version of
R-2.13.0 I used.
library(snow)
cl <- makeSOCKcluster(rep("localhost", 2))
this works fine for the R-13.0 patch (2011-04-28 r55678)
but not for the patch R-13.0 patch (2011-05-10 r55826)
In the l
On Fri, May 13, 2011 at 11:38 AM, Michael Haenlein
wrote:
> I'm now thinking about buying a more powerful desktop PC or laptop. Can
> anybody advise me on the best configuration to run R as fast as possible? I
> will use this PC exclusively for R so any other factors are of limited
> importance.
On Fri, May 13, 2011 at 7:02 AM, Asan Ramzan wrote:
> Hello R-help
>
> I am trying to copy and paste large column of data from windows Excel into R
> base speed sheet using:
>
>
> Data1<-edit(data.frame())
>
> But I can only copy and paste one cell at a time which is time consuming.
>
> Also how c
Have you considered using Amazon EC2? If you search on
http://www.r-bloggers.com, people have written about their experiences.
On Fri, May 13, 2011 at 11:38 AM, Michael Haenlein
wrote:
> Dear all,
>
> I'm currently running R on my laptop -- a Lenovo Thinkpad X201 (Intel Core
> i7 CPU, M620, 2.67
Hello R-help
I am trying to copy and paste large column of data from windows Excel into R
base speed sheet using:
Data1<-edit(data.frame())
But I can only copy and paste one cell at a time which is time consuming.
Also how can assign each column to a variable.
[[alternative HTML
> Date: Fri, 13 May 2011 12:38:51 +0200
> From: haenl...@escpeurope.eu
> To: r-help@r-project.org
> Subject: [R] Powerful PC to run R
>
> Dear all,
>
> I'm currently running R on my laptop -- a Lenovo Thinkpad X201 (Intel Core
> i7 CPU, M620, 2.67 Ghz, 8 GB RAM). The problem is that some of m
> Date: Tue, 10 May 2011 11:55:34 -0700
> From: ajf...@psu.edu
> To: r-help@r-project.org
> Subject: [R] Power Spectrum from STFT (e1071)?
>
> Hello.
>
> Does anyone know how to generate a power spectrum from the STFT function in
> package e1071? The output for this function supplies the Four
try the fitdistr() function in the MASS package
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained,
Dear all,
I'm currently running R on my laptop -- a Lenovo Thinkpad X201 (Intel Core
i7 CPU, M620, 2.67 Ghz, 8 GB RAM). The problem is that some of my
calculations run for several days sometimes even weeks (mainly simulations
over a large parameter space). Depending on the external conditions, my
Dear list,
I have 603 numbers depicting range sizes of birds in Japan.
I would like to learn if the 603 range sizes are randomly distributed or
not, in order to check if they meet mid-domain effects.
Please kindly advise if any R package or function can check the fit.
Also, any more references ar
Dear all,
I can't seem to run what seems (to me!) like a common SQL statement in RODBC:
data <- sqlQuery(a, 'SELECT TO_CHAR (DB1.DATE, '') "year" FROM DB1')
In contrast,
data <- sqlQuery(a, 'SELECT TO_CHAR(DB1.DT_INICIO) "year" FROM DB1')
works but it does not come up as I want i
I'm no expert, but checking the R-help list, I got the impression that
saving a workspace often leads to problems.
The interesting question (for me) would be to know why and how the
corrupted file got corrupted, and then, what to do to avoid the problem
if one really wants to save the workspace.
Did you download this data to the location given in the command?
'Downloads/UNdata_Export_20110511_130705015.csv'
The way I read this eror message is that the file either does not exist
or the path is speelled incorrectly! You probably have to set the
working directory ( setwd() ) to one folde
Dear R-List,
I would like to have a large number of stratified random subsamples drawn from
my dataframe and automatically test for correlation differences in every
subsample.
Let this be my dataframe
df<-data.frame(group=c(rep(1,5),rep(2,5),rep(3,5)),a=c(3,4,5,6,3,4,5,4,5,4,1,2,1,2,1),b=c
Amit Patel writes:
>>str(FullDataListTrans)
> num [1:40, 1:94727] 42 40.9 65 56 61.7 ...
> - attr(*, "dimnames")=List of 2
> ..$ : chr [1:40] "X" "X.1" "X.12" "X.13" ...
> ..$ : NULL
>
> I have also created a vector "GroupingList" which gives the groupnames for
> each
> respective sample(
Please study the help page for pdf (as the posting guide asked you to
do before posting).
This is a documented problem with fontconfig/cairo-based viewers,
which evince is.
On Thu, 12 May 2011, Vinh Nguyen wrote:
Dear list,
First, I am not writing to ask about embedding Computer Modern fon
On May 13, 2011, at 00:15 , Prof. John C Nash wrote:
> Is this a homework problem in finding the largest eigensolution of W?
>
Not as stated. It said "sum D = 1", not "sum D^2 =1". With a linear constraint,
it looks like weighted least squares, but then you should be minimizing, not
maximizin
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