Hello everybody!
For my academic project work I intend to use only open-source software. My
objective is to carry out classification of satellite digital images using
Geostatistics. I found out GRASS is a good software for image processing.
Also a good geostatistics software is R. It is also known
Hello guys! May be I am lazy but
I need to replace a character like \ or ' or to escape them in a character
vector to write a SQL statement.
How can I do that?
Caveman
[[alternative HTML version deleted]]
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R-help@r-project.org mailing list
Hi everyone,
I have a question about using RWeka package，
we know that instruction make_Weka_classifier that can help
us to build a model,and evaluate_Weka_classifier instruction
can help us to evaluate the performance of the model using on new data.
But I have a question about how to using
Thank you for your reply Frank. I am not familiar with the contrast
test, but I'll see what I can find out about it.
Mark
Frank Harrell wrote:
On Mon, 9 Aug 2010, Mark Seeto wrote:
Hello, I have a general question about combining imputations as well
as a
question specific to the rms and Hm
On Mon, Aug 9, 2010 at 9:31 PM, Derek Ogle wrote:
> I am trying to define a general R function that has a function as the output
> that depends on the user's input arguments (this may make more sense by
> looking at the toy example below). My real use for this type of code is to
> allow a user
> When ggplot2 verifies the widths before stacking (the default position for
> histograms), it computes the widths from the minimum and maximum values for
> each bin. However, because the width of the bins (0.28) is much smaller
> than the scale of the edges (6.8e+09), there is some underflow and
On Aug 9, 2010, at 6:27 PM, Alexander Eggel wrote:
Hello everybody,
I need to know which samples (S1-S6) contain a value that is bigger
than the
median + five standard deviations of the column he is in. This is
just an
example. Command should be applied to a data frame wich is a lot
bigg
Thanks. I found the code in the link you gave me very helpful.
But, I just have few questions regarding the code.
It seems to me that in (from wikipdeia)Deming regression, it assumes that
the ratios of the variances of two measurement errors are constant for all
pairs of (x_i, y_i). However, if the
On Mon, 9 Aug 2010, Mark Seeto wrote:
Hello, I have a general question about combining imputations as well as a
question specific to the rms and Hmisc packages.
The situation is multiple regression on a data set where multiple
imputation has been used to give M imputed data sets. I know how to
I am trying to define a general R function that has a function as the output
that depends on the user's input arguments (this may make more sense by looking
at the toy example below). My real use for this type of code is to allow a
user to choose from many parameterizations of the same general
Hello, I have a general question about combining imputations as well as a
question specific to the rms and Hmisc packages.
The situation is multiple regression on a data set where multiple
imputation has been used to give M imputed data sets. I know how to get
the combined estimate of the covarian
Hi,
Since no one has answered this, I will take a shot. I doubt it would
really take more work to just put the functions in a script. Sure you
would have to 'customize' each one, but since you are entering their
names, name of the desired output object, and arguments, simply
directly entering th
On Aug 9, 2010, at 8:17 PM, Hongying Li wrote:
Hello,
when using coxph function from survival package, what do you do if
you encounter such problem like:
Warning message:
In fitter(X, Y, strats, offset, init, control, weights = weights, :
Loglik converged before variable 3,4 ; beta may
Hello,
when using coxph function from survival package, what do you do if you
encounter such problem like:
Warning message:
In fitter(X, Y, strats, offset, init, control, weights = weights, :
Loglik converged before variable 3,4 ; beta may be infinite.
Thanks!
Dear all,
I have a serious problem in applying Tukey post hoc after a repeated
measure ANOVA. I
followed the suggestions that I found in this help -list especially
this one:
//[R] Tukey HSD (or other post hoc tests) following repeated measures ANOVA
You want to use lme() in package nlme,
On Mon, 9 Aug 2010, Alexander Eggel wrote:
Hello everybody,
I need to know which samples (S1-S6) contain a value that is bigger than the
median + five standard deviations of the column he is in. This is just an
Why not the 70th percentile plus 6 times the difference in the 85th
and 75th p
Hello everybody,
I need to know which samples (S1-S6) contain a value that is bigger than the
median + five standard deviations of the column he is in. This is just an
example. Command should be applied to a data frame wich is a lot bigger
(over 100 columns). Any solutions? Thank you very much for
On Mon, Aug 9, 2010 at 4:30 PM, Matthew Dowle wrote:
>
>
> Another option for consideration :
>
> library(data.table)
> mydt = as.data.table(mydf)
>
> mydt[,as.list(coef(lm(y~x1+x2+x3))),by=fac]
> fac X.Intercept. x1 x2 x3
> [1,] 0 -0.16247059 1.130220 2.988769 -19.14719
In the trivial case where all candidate predictors have one degree of
freedom (which is unlikely as some things will be nonlinear or have >
2 categories), adding a variable if it increases AIC is the same as
adding it if its chi-square exceeds 2. This corresponds to an alpha
level of 0.157 f
Another option for consideration :
library(data.table)
mydt = as.data.table(mydf)
mydt[,as.list(coef(lm(y~x1+x2+x3))),by=fac]
fac X.Intercept. x1 x2x3
[1,] 0 -0.16247059 1.130220 2.988769 -19.14719
[2,] 1 0.08224509 1.216673 2.847960 -19.16105
[3,] 2 0.020523
Dear all,
As I couldn't find any thread on the internet I hope the help-list might help
me out.
I've tried to update Rtools from R210 used in combination with R2.9.1 to R211
in combination with R2.11.1. However, I do not succeed.
I have R2.11.1 running, as well as Inno Setup 5, HTML help and M
Look at the my.symbols and subplot functions in the TeachingDemos package, one
of those may work for you.
Note however that the author of those functions is one of the advocates against
the use of pie charts and if there were a free (as in speech) license that
would allow for excluding any use
Dear R list,
I have written some code to produce several wireframe plots in a panel. They
look good, but when I try to create a pdf, many (but not all) of the details
I have specified are not reproduced. For example, the line width I have
specified is not reproduced, and neither are the font sizes
On Mon, Aug 9, 2010 at 1:29 PM, Gabor Grothendieck
wrote:
> On Mon, Aug 9, 2010 at 10:22 AM, JH wrote:
>>
>> I am wanting to change some lines of code in the R package named "nlme"
>> http://cran.r-project.org/web/packages/nlme/index.html
>> To do this I have downloaded the Package source named n
Thank you David!
- Original Message
From: David Winsemius
To: array chip
Cc: r-help@r-project.org
Sent: Mon, August 9, 2010 12:42:06 PM
Subject: Re: [R] x-axis annotation
On Aug 9, 2010, at 3:14 PM, array chip wrote:
> Hi, I have a simple plot by plot(x,y, log='xy'). However, due t
On Aug 9, 2010, at 3:14 PM, array chip wrote:
Hi, I have a simple plot by plot(x,y, log='xy'). However, due to the
large range
of values of x, the x-axis annotation is printed as "2e+02 1e+03 5e
+03 2e+04
1e+05" instead of "200 1000 5000 2 10". How can I make
it printed
as
On 09/08/2010 10:22 AM, JH wrote:
I am wanting to change some lines of code in the R package named "nlme"
http://cran.r-project.org/web/packages/nlme/index.html
That is usually a bad idea. If you have found a bug in the package, let
the maintainers know about it. If you want to add to it,
Hi, I have a simple plot by plot(x,y, log='xy'). However, due to the large
range
of values of x, the x-axis annotation is printed as "2e+02 1e+03 5e+03 2e+04
1e+05" instead of "200 1000 5000 2 10". How can I make it printed
as in the later one?
Thanks
John
_
Note that stepwise variale selection based on AIC has all the problems
of stepwise variable selection based on P-values. AIC is just a
restatement of the P-Value.
Frank
Frank E Harrell Jr Professor and ChairmanSchool of Medicine
Department of Biostatistics V
Look at the TkPredict and Predict.Plot functions in the TeachingDemos package
as a couple of options.
--
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.s...@imail.org
801.408.8111
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-he
See comments below.
On Mon, 2010-08-09 at 10:22 -0400, JH wrote:
> I am wanting to change some lines of code in the R package named "nlme"
> http://cran.r-project.org/web/packages/nlme/index.html
> To do this I have downloaded the Package source named nlme_3.1-96.tar.gz,
> opened up the file and c
>> That's exactly what dlply does - so you should never have to do that
>> yourself.
>
> I'm unclear what you are saying. Are you saying that the plyr function
> _should_ have examined the objects in that list and determined that there
> were 4 rows and properly labeled the rows to indicate which l
On Aug 9, 2010, at 12:47 PM, Hadley Wickham wrote:
There is one further improvement to consider. When I tried using
dlply to
tackle a problem on which I had been bashing my head for the last
three days
and it gave just the results I had been looking for, I also noticed
that the
dlply func
Check out the gallery of R chart; here is one to look at:
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=143
On Mon, Aug 9, 2010 at 1:04 PM, LCOG1 wrote:
>
> Hey R'rs,
> So im sick of dealing with ESRI products and am looking to stream line a
> process i now use GIS to do usin
On Mon, Aug 9, 2010 at 10:22 AM, JH wrote:
>
> I am wanting to change some lines of code in the R package named "nlme"
> http://cran.r-project.org/web/packages/nlme/index.html
> To do this I have downloaded the Package source named nlme_3.1-96.tar.gz,
> opened up the file and changed the text docu
To find every help page containing the term "constrained
optimization", you can try the following:
library(sos)
co <- findFn('constrained optimization')
"Printing" this "co" object opens a table in a web browser with
all matches sorted first by the package with the most matches
When putting R package names in Latex, do we use \it or \em, please?
As far as I know, the only difference between \it and \em is that \em
words are unitalicized in an italics portion of the text, which is
desirable in most cases.
However, I am not sure that italics is the most common solu
Is this what you want:
> x <- list()
> x[[1]] <- list(1:3)
> x[[2]] <- list(3:1)
> x
[[1]]
[[1]][[1]]
[1] 1 2 3
[[2]]
[[2]][[1]]
[1] 3 2 1
On Mon, Aug 9, 2010 at 12:57 PM, Carlos Petti wrote:
> Dear list,
>
> I have to use a list of lists containing vectors.
>
> For instance :
>
> [[1]]
> [[
On Aug 9, 2010, at 12:57 PM, Carlos Petti wrote:
Dear list,
I have to use a list of lists containing vectors.
For instance :
[[1]]
[[1]][[1]]
[1] 1 2 3
[[1]][[2]]
[1] 3 2 1
I want to attribute vectors to the main list
without use of an intermediate list,
but it does not work :
More spec
most likely 'combos[e,f]' is NA; take a look at your data. Also put
options(error=utils::recover)
in your program so that when the error occurs you can learn to use the
debugging mode to trace down the problem.
On Mon, Aug 9, 2010 at 11:38 AM, Turn & Fall wrote:
>
> Here is my code
>
>
Hey R'rs,
So im sick of dealing with ESRI products and am looking to stream line a
process i now use GIS to do using R. I have made a lot of maps using R but
have not yet seen a map that puts pie charts within the map to help
represent data like the attachment.
http://r.789695.n4.nabble.com
On Aug 9, 2010, at 9:52 AM, peter dalgaard wrote:
On Aug 9, 2010, at 3:03 PM, Alain Guillet wrote:
Hi,
Look at the output of the test made in R and you can see it is a
Wilcoxon rank sum test and not a Wilcoxon signed rank test.
It might be helpful to add that paired=TRUE is needed in th
I want to edit a function in the nlme package. I download the package source
nlme_3.1-96.tar.gz from the link below then edit it one of the scripts
inside of it. From this stage how can I turn it into a package that I can
use in R?
http://cran.r-project.org/web/packages/nlme/index.html
--
View t
I am wanting to change some lines of code in the R package named "nlme"
http://cran.r-project.org/web/packages/nlme/index.html
To do this I have downloaded the Package source named nlme_3.1-96.tar.gz,
opened up the file and changed the text documents within the folder named R,
specifically the cor
Here is my code
# determine the DDOA measurements
for(e in 1:numSensors)
{
for(f in 1:numSensors)
{
if((combos[e,f]==1)
{
ldply doesnt need a grouping variable as far as I understand the command..
"Description
For each element of a list, apply function then combine results into a data
frame
Usage
ldply(.data, .fun = NULL, ..., .progress = "none")"
regards,
M
On 9. aug. 2010, at 15.33, David Winsemius wrote:
constrOptim can only handle linear inequality constraints. It cannot handle
equality (linear or nonlinear) as well as nonlinear inequality constraints.
Ravi.
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Dwayne Blind
Sent: Monday
try command solnp in package Rsolnp
Am 09.08.2010 18:56, schrieb Dwayne Blind:
Hi !
Why not constrOptim ?
Dwayne
2010/8/9 Gildas Mazo
Dear R users,
I'm looking for tools to perform optimization subject to constraints,
both linear and non-linear. I don't mind which algorithm may be used, m
You may want to look at:
http://cran.r-project.org/web/packages/alabama/index.html
Ravi.
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Gildas Mazo
Sent: Monday, August 09, 2010 12:49 PM
To: r-help@r-project.org
Subject: [R] optim
Dear list,
I have to use a list of lists containing vectors.
For instance :
[[1]]
[[1]][[1]]
[1] 1 2 3
[[1]][[2]]
[1] 3 2 1
I want to attribute vectors to the main list
without use of an intermediate list,
but it does not work :
x <- list()
x[[1]][[1]] <- c(1, 2, 3)
x[[1]][[2]] <- c(3, 2, 1
Hi !
Why not constrOptim ?
Dwayne
2010/8/9 Gildas Mazo
> Dear R users,
>
> I'm looking for tools to perform optimization subject to constraints,
> both linear and non-linear. I don't mind which algorithm may be used, my
> primary aim is to get something general and easy-to-use to study simples
Dear R users,
I'm looking for tools to perform optimization subject to constraints,
both linear and non-linear. I don't mind which algorithm may be used, my
primary aim is to get something general and easy-to-use to study simples
examples.
Thanks for helping,
Gildas
> There is one further improvement to consider. When I tried using dlply to
> tackle a problem on which I had been bashing my head for the last three days
> and it gave just the results I had been looking for, I also noticed that the
> dlply function returns the grouping variable levels in an attri
The safe bit is to always use the curly brackets on the 'if'
statements to avoid problems. I always do
if (..) {
statement
}
On Mon, Aug 9, 2010 at 12:29 PM, Joshua Wiley wrote:
> On Mon, Aug 9, 2010 at 9:26 AM, David Winsemius
> wrote:
>>
>> On Aug 9, 2010, at 12:14 PM, Joshua Wil
Hi Uwe,
I'm sorry for the inconvenience I caused.
I read "posts" of R Help through nabble forum. When I reply a post through
the forum, it is distinctly clear that my message is a reply to the original
poster's post, just like a conversation. Those posts which quote the
original message which i
Hi, I would like to a draw a scatterplot of x1 and x2 (plot (x1, x2)), and also
want to draw a sort of "regression" line across the data points. But x1 and x2
are just 2 independent variables, so in this case a regression of x1 over x2,
or
vice versa, is not appropriate per se. What would be an
Thanks to all of you.
Dwayne
2010/8/9 David Winsemius
>
> On Aug 9, 2010, at 12:29 PM, Joshua Wiley wrote:
>
> On Mon, Aug 9, 2010 at 9:26 AM, David Winsemius
>> wrote:
>>
>>>
>>> On Aug 9, 2010, at 12:14 PM, Joshua Wiley wrote:
>>>
>>> On Mon, Aug 9, 2010 at 8:51 AM, Dwayne Blind
wrote:
On Aug 9, 2010, at 12:29 PM, Joshua Wiley wrote:
On Mon, Aug 9, 2010 at 9:26 AM, David Winsemius > wrote:
On Aug 9, 2010, at 12:14 PM, Joshua Wiley wrote:
On Mon, Aug 9, 2010 at 8:51 AM, Dwayne Blind
wrote:
Dear R users,
I have a basic question. In an "if statement", when several
expre
On Mon, Aug 9, 2010 at 9:26 AM, David Winsemius wrote:
>
> On Aug 9, 2010, at 12:14 PM, Joshua Wiley wrote:
>
>> On Mon, Aug 9, 2010 at 8:51 AM, Dwayne Blind
>> wrote:
>>>
>>> Dear R users,
>>>
>>> I have a basic question. In an "if statement", when several expressions
>>> have
>>> to be evaluate
On Aug 9, 2010, at 12:14 PM, Joshua Wiley wrote:
On Mon, Aug 9, 2010 at 8:51 AM, Dwayne Blind
wrote:
Dear R users,
I have a basic question. In an "if statement", when several
expressions have
to be evaluated, they must be put inside curly braces, right ?
Yes.
if(1 > 2) {print("hello")
On Mon, Aug 9, 2010 at 8:51 AM, Dwayne Blind wrote:
> Dear R users,
>
> I have a basic question. In an "if statement", when several expressions have
> to be evaluated, they must be put inside curly braces, right ?
Yes.
if(1 > 2) {print("hello"); print("world")}
if(4 > 2) {print("hello"); print("
On Aug 9, 2010, at 10:11 AM, moleps wrote:
ldply doesnt need a grouping variable as far as I understand the
command..
There is one further improvement to consider. When I tried using dlply
to tackle a problem on which I had been bashing my head for the last
three days and it gave just th
On 09.08.2010 17:47, Wu Gong wrote:
I can't understand why you doubled "("
"if((combos[e,f]==1)"
-
A R learner.
?
Can you please refer and quote the original messages you are replying to
and can you please also include the one who asked the question? Not
everybody is subscribed to t
Dear R users,
I have a basic question. In an "if statement", when several expressions have
to be evaluated, they must be put inside curly braces, right ?
For example :
if (x>2) {
y=3
z=2
}
Thank you very much,
Dwayne
[[alternative HTML version deleted]]
I can't understand why you doubled "("
"if((combos[e,f]==1) "
-
A R learner.
--
View this message in context:
http://r.789695.n4.nabble.com/TRUE-FALSE-tp2318668p2318684.html
Sent from the R help mailing list archive at Nabble.com.
__
R-help@r-pr
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of Erik Iverson
> Sent: Sunday, August 08, 2010 11:27 PM
> To: Alexander Eggel
> Cc: r-help@r-project.org
> Subject: Re: [R] Extract values from data frame in R
>
> On 08/09/2010 01
Stephen Liu wrote:
The "Introduction to R" is rather terse, but a reasonable starting
point. The other manuals listed on that page are special-purpose
manuals for installation & administration, development, etc.. You
can try the manuals listed in the "contributed documentation" section
to
That works.
Thanks
On Mon, Aug 9, 2010 at 7:55 AM, Henrique Dallazuanna wrote:
> Try this:
>
> aggregate(example[c('x', 'y')], example[c('id', 'Year')], 'mean')
>
>
> On Mon, Aug 9, 2010 at 11:46 AM, steven mosher wrote:
>
>> Assuming a data frame or matrix with two columns representing variable
Please post any qeustions regarding RExcel to the rcom-l mailing list.
You can subscribe at rcom.univie.ac.at
On Aug 9, 2010, at 1:42 PM, Andreas Scherer wrote:
> I have a problem with RExcel which I have now installed on top of R 2.11.0.
> The problem had been posted in 2009 on the forum by so
> The "Introduction to R" is rather terse, but a reasonable starting
> point. The other manuals listed on that page are special-purpose
> manuals for installation & administration, development, etc.. You
> can try the manuals listed in the "contributed documentation" section
> too.
Hi Ben,
Th
Try this:
aggregate(example[c('x', 'y')], example[c('id', 'Year')], 'mean')
On Mon, Aug 9, 2010 at 11:46 AM, steven mosher wrote:
> Assuming a data frame or matrix with two columns representing variable that
> you want to aggregate over.
> you want to calculate column means, by year, for each I
On Mon, Aug 9, 2010 at 9:29 AM, David Winsemius wrote:
> If you look at the output (as I did) you should see that despite whatever
> expectations you have developed regarding plyr, that it did not produce a
> grouping variable:
>
>> ldply(dl, function(x) coef(summary(x)) )
> fac Estimate Std
On 09.08.2010 13:17, szisziszilvi wrote:
Hello!
E.g. I have a file like sample.csv:
condition1;condition2;myVar
0.902443929;0.879344831;0.963357725
0.91014254;0.717720763;0.953787867
0.899773581;0.871760835;1.031798755
0.892074969;0.863043345;1.080447426
0.847759139;0.894642857;1.080521187
0.
With sweave, you need to explicitly print() the output of ggplot2 and
lattice plots.
Hadley
On Mon, Aug 9, 2010 at 6:32 AM, W Eryk Wolski wrote:
> qplot does (?) what I was looking for!
> At least it plots what I want to plot in the interactive modus.
> However, it seems not to work with Sweave.
Assuming a data frame or matrix with two columns representing variable that
you want to aggregate over.
you want to calculate column means, by year, for each Id
example<-data.frame(id=c(rep(12345,5),rep(54321,6),rep(45678,7)),Year=rep(seq(1900,1902,by=1),6),
x=seq(1,18,by=1),y=seq(18,1,by=-1))
On Aug 9, 2010, at 9:30 AM, Erin Hodgess wrote:
> Dear R People:
>
> When putting R package names in Latex, do we use \it or \em, please?
>
> Thanks,
> Erin
Erin,
I may be missing something specific to your application, but for the R Journal,
JSS and .Rd help files, package names would typic
On 09.08.2010 16:30, Erin Hodgess wrote:
Dear R People:
When putting R package names in Latex, do we use \it or \em, please?
Thanks,
Erin
Depends.
For example, the style guide of the Journal of Statistical Software asks
you to use \pkg{} which is defined as
\newcommand{\pkg}[1]{{\font
On Mon, Aug 9, 2010 at 6:43 AM, Harsh wrote:
> Hello useRs,
>
> I have a problem at hand which I'd think is fairly common amongst
> groups were R is being adopted for Analytics in place of SAS.
> Users would like to obtain results for logistic regression in R that
> they have become accustomed to
check the robustbase package and rlm or hubers in MASS
You'll need to know which m-estimator you want, but both those packages
include at least some m-estimators.
Strictly, so does the base package; the mean is an m-estimator. Just
not a very robust one!
S Ellison
>>> Iasonas Lamprianou 06/08/
Dear R People:
When putting R package names in Latex, do we use \it or \em, please?
Thanks,
Erin
--
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodg...@gmail.com
__
If you look at the output (as I did) you should see that despite
whatever expectations you have developed regarding plyr, that it did
not produce a grouping variable:
> ldply(dl, function(x) coef(summary(x)) )
facEstimate Std. Error t value Pr(>|t|)
10 -0.3563418 0.14383
Hi!
Would unlist() work for you?
HTH,
Ivan
Le 8/9/2010 16:00, Anna Lippel a écrit :
> Hello guys, I want to rbind the columns of a data frame but I don't know how
> to do it, let's say:
> A B C
> 1 2 3
> 1 2 3
>
> I want to get
> 1
> 1
> 2
> 2
> 3
> 3
>
> It seems very simple but I
I bogged about 3 possible solutions recently (statbandit.wordpress.com).
Possibly the 2nd most recent post.
Abhijit
On Aug 9, 2010 8:28 AM, "W Eryk Wolski" wrote:
Hi,
ESS replaces "_" by "<-". How can I switch off this feature?
I need to be able to type the underscore
Thanks
Eryk
--
Witold
On a headless Linux server running R 2.9.2 I would like to enable
support for cairo, but capabilities("cairo") keeps on giving me FALSE.
Is it possible what I am trying to do or can this only be achieved at R
build time? I do not have administrative rights on this server.
After compiling cair
Hello guys, I want to rbind the columns of a data frame but I don't know how
to do it, let's say:
A B C
1 2 3
1 2 3
I want to get
1
1
2
2
3
3
It seems very simple but I still didnt get a find of how to do it...Please
help!
--
View this message in context:
http://r.789695.n4.nabble
On Aug 9, 2010, at 3:03 PM, Alain Guillet wrote:
> Hi,
>
> Look at the output of the test made in R and you can see it is a Wilcoxon
> rank sum test and not a Wilcoxon signed rank test.
It might be helpful to add that paired=TRUE is needed in the call to get the
signed-rank test.
> If there
nancy_shackelford gmail.com> writes:
> Hello all,
>
> I need to imitate the 'q' function (qnorm, qweibull, etc) for Clark's 2Dt
> distribution model. I'm not skilled enough in R to code it myself, so I
> thought I could find the base code for one of the existing 'q' functions and
> just modify
On Aug 9, 2010, at 7:51 AM, moleps wrote:
Dear all,
I´m having trouble getting a list of regression variables back into
a dataframe.
mydf <- data.frame(x1=rnorm(100), x2=rnorm(100), x3=rnorm(100))
mydf$fac<-factor(sample((0:2),replace=T,100))
mydf$y<- mydf$x1+0.01+mydf$x2*3-mydf$x3*19+rn
Hi,
Look at the output of the test made in R and you can see it is a
Wilcoxon rank sum test and not a Wilcoxon signed rank test.
If there are ties, I know I prefer wilcox.exact from the exactRankTests.
Alain
On 09-Aug-10 12:43, Capasia wrote:
This is my first post to the mailing list and I
You should bootstrap the two groups separately. The bootstrap sample you get
do not follow the same order as the original sample, so the first 62
observations are coming from both groups. What you bootstrapped is
essentially the difference between the pooled mean and itself, which would
no doubt
There are some book-length documents (downloadable for free) at the
contributed documentation section of the R project website here:
http://cran.r-project.org/other-docs.html
In particular, the book “Practical Regression and Anova using R” by
Julian Faraway looks to have the content you want, tho
On Aug 9, 2010, at 8:23 AM, khaz...@ceremade.dauphine.fr wrote:
Hi,
I am runing R on my mac and I get this error:
R(206,0xa01ad720) malloc: *** mmap(size=402048) failed (error
code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
R(206,0xa01ad7
Frank E Harrell Jr Professor and ChairmanSchool of Medicine
Department of Biostatistics Vanderbilt University
On Mon, 9 Aug 2010, Harsh wrote:
Hello useRs,
I have a problem at hand which I'd think is fairly common amongst
groups were R is being adopted for An
Dear all,
I´m having trouble getting a list of regression variables back into a
dataframe.
mydf <- data.frame(x1=rnorm(100), x2=rnorm(100), x3=rnorm(100))
mydf$fac<-factor(sample((0:2),replace=T,100))
mydf$y<- mydf$x1+0.01+mydf$x2*3-mydf$x3*19+rnorm(100)
dlply(mydf,.(fac),function(df) lm(y~
Hello!
E.g. I have a file like sample.csv:
condition1;condition2;myVar
0.902443929;0.879344831;0.963357725
0.91014254;0.717720763;0.953787867
0.899773581;0.871760835;1.031798755
0.892074969;0.863043345;1.080447426
0.847759139;0.894642857;1.080521187
0.847179086;0.89650009;1.111348011
0.849229318;
This is my first post to the mailing list and I guess it's a pretty stupid
question but I can't figure it out. I hope this is the right forum for these
kind of questions.
Before I started using R I was using STATA to run a Wilcoxon signed-rank
test on two variables. See data below:
https://spread
W Eryk Wolski wrote:
Hi,
ESS replaces "_" by "<-". How can I switch off this feature?
I need to be able to type the underscore
Thanks
Eryk
Pressing the underscore a second time gives you the underscore.
--
Kevin E. Thorpe
Biostatistician/Trialist, Knowledge Translation Program
Assistant P
On Aug 9, 2010, at 7:26 AM, W Eryk Wolski wrote:
> Hi,
>
> ESS replaces "_" by "<-". How can I switch off this feature?
>
> I need to be able to type the underscore
>
> Thanks
> Eryk
Eryk,
If you type the underscore key twice, you get an underscore character rather
than the assignment opera
Hi,
ESS replaces "_" by "<-". How can I switch off this feature?
I need to be able to type the underscore
Thanks
Eryk
--
Witold Eryk Wolski
Heidmark str 5
D-28329 Bremen
tel.: 04215261837
__
R-help@r-project.org mailing list
https://stat.ethz.ch/m
Hi,
I am runing R on my mac and I get this error:
R(206,0xa01ad720) malloc: *** mmap(size=402048) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
R(206,0xa01ad720) malloc: *** mmap(size=402048) failed (error code=12)
*** error:
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