Displaying 20 results from an estimated 8000 matches similar to: "Should help of estimate in t.test be corrected?"
2020 Apr 07
4
Hard memory limit of 16GB under Windows?
Hi Tomas,
Many thanks for your answer.
Here is a copy of a fresh session under RStudio, and after a copy under
Rgui.
Strangely enough the result of memory.limit() is not the same. Without
your question I would not have looked to RGui, being used to work with
RStudio.
The value under RGui sounds to correspond to the total RAM of the
computer. It makes me noticing that the value is in MB.
2020 Apr 07
3
Hard memory limit of 16GB under Windows?
Hi,
I am not not sure whether this topic belongs to this mail list, but I
feel the subscribers here should be the right audience.
I noticed that the memory limit reported under Windows is 16 GB. I am
wondering how to increase it. I didn't found anything in Rprofile.site
nor .Rprofile. Is this limit hard coded at compilation?
Best,
Samuel
[[alternative HTML version deleted]]
2018 Feb 15
3
Identify does sort the locations
Hi,
Using identify function, I think I should get the index of the selected
points in the order I clicked them. This is what I read in the help. But
I feel they are ordered. Please let me know what I missed.
In the following example, I clicked on the points labelled 7, 5 and 1,
but I get 1, 5, 7 as output.
> set.seed(0); x = rnorm(10); y = rnorm(10); plot(x,y); text(x, y,
> seq(x));
2018 Feb 15
0
Identify does sort the locations
Hi
Indeed the help page says ...
"the indices of the identified points, in the order they were identified"
... and that is a complete lie.
Sorry about that :(
The simplest thing would be to correct the help page.
It would be possible to have identify() return the order, though for
backward compatibility that should not be the default, so would require
another argument to
2023 Apr 03
0
Should help of estimate in t.test be corrected?
Hallo,
you are probably right that
"the estimated mean or difference in means depending on whether it was a one-sample test or a two-sample test"
should be rephrased to
"the estimated mean or difference in means depending on whether it was a one-sample test, two-sample test or two sample paired test"
Cheers
Petr
> -----Original Message-----
> From: Samuel Granjeaud
2018 Feb 15
2
Identify does sort the locations
Hi Paul,
Thanks for your answer. I am wondering if in the previous versions,
let's say 2.1x, the data were in the selection order... Let me know if
there a R fonction taht I can code. Do you think I should use locator
function and match points on my own?
Best,
Samuel
2024 Sep 14
1
Dirichlet kernel requires r to be defined, which is not in the help
Code to reproduce
> kernel("dirichlet")
Error in kernel("dirichlet") : argument "r" is missing, with no default
The help says
r??? the kernel order for a Fejer kernel.
Thanks to update the help.
Best,
Samuel
2020 Apr 07
1
Hard memory limit of 16GB under Windows?
Agreed. I don't see any evidence of a "hard limit" here. It just looks
like the code you're running has exhausted the memory of your machine.
It doesn't require creating a lot of 12.6 Gb vectors to do that, even on
a machine with a lot of memory ;-)
H.
On 4/7/20 08:05, Thierry Onkelinx via R-devel wrote:
> Dear Samuel,
>
> The most important information from
2018 May 15
1
bug in {graphics} identify()
R3.4.x, R3.5.0, Windows7 64 bit code
{graphics} identify()
is sorting results before returning the vector. As documented it should
return the raw sequence in the order selected ...
"If |pos| is |FALSE|, an integer vector containing the indices of the
identified points, in the order they were identified. "
X<-rnorm(100) # 100 random numbers
dim(X)<-c(50,2) #
2006 May 18
1
adding grid lines to an xyplot when there is only 1 panel - corrected
Sorry, some things got garbled in that request for help that might make
my request
unintelligible, probably it being too late at night when I posted, here
is the corrected function
call for which I would like to learn how to add horizontal grid lines.
Any suggestions
would be appreciated. Apologies for the posting error
xyplot(est ~ STE, data = all, groups = AREA, type = "b",
2018 Feb 15
0
Identify does sort the locations
Hi
Sorry, I think this has always been the behaviour (and the documentation
has always been wrong).
Using locator() yourself could be a workaround (with a little more
effort required to determine the closest data point).
Paul
On 16/02/18 09:32, Samuel GRANJEAUD IR/INSERM wrote:
> Hi Paul,
>
> Thanks for your answer. I am wondering if in the previous versions,
> let's say
2010 Oct 15
2
How to extract parameter estimates of variance function from lme fit
Dear R-Users,
I have a question concerning extraction of parameter estimates of
variance function from lme fit.
To fit my simulated data, we use varConstPower ( constant plus power
variance function).
fm<-lme(UPDRS~time,data=data.simula,random=~time,method="ML",weights=varConstPower(fixed=list(power=1)))
I extract the results of this function by using the following codes:
2020 Apr 07
0
Hard memory limit of 16GB under Windows?
Dear Samuel,
The most important information from your mail was the actual error message:
"cannot allocate vector of size 12.6 Gb".
You'll need to know what code generated this error message. And then figure
out if the code does something sensible. Often that is not the case when
you get a similar error message.
Best regards,
ir. Thierry Onkelinx
Statisticus / Statistician
2013 Mar 15
3
reviewer comment
Un texte encapsul? et encod? dans un jeu de caract?res inconnu a ?t? nettoy?...
Nom : non disponible
URL : <https://stat.ethz.ch/pipermail/r-help/attachments/20130315/7300f19c/attachment.pl>
2009 May 28
3
String replacement in an expression
Dear R-experts,
I need to replace in an expression the character "Cl" by "Cl+beta"
But in the following case:
form<-expression((Cl-(V *ka) ) +(V *Vm *exp(-(Clm/Vm) *t)))
gsub("Cl","(Cl+beta)",as.character(form))
We obtain:
[1] "((Cl+beta) - (V * ka)) + (V * Vm * exp(-((Cl+beta)m/Vm) * t))"
the character "Clm" has been
2013 Jun 12
2
grDevices::convertColor XYZ space is it really xyY?
grDevices::convertColor has arguments 'from' and 'to' which can take on value 'XYZ'. Can someone confirm that 'XYZ' is the same as the CIE chromaticity coordinates that are also sometimes refered to as 'xyY' in the literature? Or are these the CIE tristimulus values? It looks to me like the first case is true, but I would appreciate hearing from one of
2005 Mar 30
6
French Curve
Dear R experts,
Did someone implemented French Curve yet? Or can anyone point me some
papers that I can follow to implement it?
thanks in advance for your help.
Paul
2008 Jan 20
3
Logical test and look up table
Dear R users,
I have a data frame with one column (4000 rows) containing name codes
(factor with 63 levels). I would like to associate each name with a
particular Type (coded as 1,2,3,4,H or H1) in a second column. Is it
possible to do a lookup table of associations (i.e. A23 is of type 1, A13
is of type 3 ...) so as to fill up automatically the $Type column.
df()
$Source $Type
A23
A24
A9
A32
2003 Aug 06
2
(no subject)
Hi everybody,
Hope your are not all on holyday because I've got a problem that is going to
drive me crazy...
I would like to remove some rows from a dataframe. The rows correspond to
some
specific indexes which I can get by looking at the name in the first column
of my dataset. But I manage to get only the opposite of what I really want
(function #1)
#Function#1:
2006 Jan 19
2
Tobit estimation?
Folks,
Based on
http://www.biostat.wustl.edu/archives/html/s-news/1999-06/msg00125.html
I thought I should experiment with using survreg() to estimate tobit
models.
I start by simulating a data frame with 100 observations from a tobit model
> x1 <- runif(100)
> x2 <- runif(100)*3
> ystar <- 2 + 3*x1 - 4*x2 + rnorm(100)*2
> y <- ystar
> censored <- ystar <= 0