Displaying 20 results from an estimated 900 matches similar to: "what can we do when R gives no response"
2008 Jun 30
0
Fwd: cannot install the package RMySQL
Hi,
I first report the installing error to the r-sig-mac mailing list but
it seems
nobody ever encounter this annoying problem and I got no replies. so I
am trying to forward it to this list, hope it never bothers.
Anyone had the same problem, or what does the warning message mean ?
Thank you in advance !
Begin forwarded message:
> From: Peng Jiang <jp021@sjtu.edu.cn>
> Date:
2008 Jun 23
3
Simulating Gaussian Mixture Models
Hi,
Is there any package that I can use to simulate the Gaussian
Mixture Model , which is a mixture modeling method that is widely used
in statistical learning theory.
I know there is a mclust, however, I think it is a little bit
different from my problem.
Thanks very much..
regards.
--------------------------
Peng Jiang
??
Ph.D. Candidate
Antai College of Economics &
2008 Sep 16
5
How to find the index
Dear R experts,
i have a vector z , i have to do something after z is sorted. how
can i find the original index, i.e., before sorting, of a certain
element in the sorted vector .
thanks in advance
regards
-----------------------------------------------
Peng Jiang ?? ,Ph.D. Candidate
Antai College of Economics & Management
????????
Department of Mathematics
???
Shanghai Jiaotong
2008 Jul 08
1
about EM algorithm
Hi, dear R experts .
is there any package contain an universal EM procedure,
that is , for arbitrary d.f. , not just the one in mclust .
thanks in advance
best regards
-----------------------------------------------
Peng Jiang ?? ,Ph.D. Candidate
Antai College of Economics & Management
????????
Department of Mathematics
???
Shanghai Jiaotong University (Minhang Campus)
800 Dongchuan Road
2008 Jun 24
2
How to solve empty cells in the contingency table?
Hi,Dear all R experts,
I am trying to do the 2-way contingency table analysis by fitting the loglinear models. However, I found my table has several empty cells which are theoretically missing values.I have no idea of how to solve them coz we cannot compute the simulated p-value with zero marginals.Does someone have some suggestions? Please help me out, thanks a lot!
Cheers,
Yan
2008 Jun 27
1
binomial distribution
Hi all,
I am a biological student and need your help in statistics.
I have two sets of binomial distributed numbers: {a1, a2, ..., an} and {b1,
b2, ..., bn}.
How can I get the distribution of the ratios of the two sets of numbers
{a1/b1, a2/b2, ..., an/bn}? Is there a formula to transform the
distributions? Or where I can start if I want to learn necessary techniques?
Thank you a lot!
xiechao
2008 Jun 28
2
String concatenation
Hi,
Is the following function built in somewhere?
concat = function(v) {
res = ""
for (i in 1:length(v))
res = paste(res,v[i],sep="")
res
}
e.g.
> concat(c("12","3","45"))
[1] "12345"
Cheers,
Andy
--
Andy Fugard, Postgraduate Research Student
Psychology (Room F3), The University of Edinburgh,
7 George
2008 Jul 01
2
if one of 4 conditions is not satisfied
I'm trying to do realize the following:
I have 4 condtions.
If all conditions are satisfied I will paste("PASS")
If any of these is not satisfied I will paste("FAIL"). But I have to paste
the corresponding failure.
ifelse is a good solution but for a 2 conditions. Maybe switch or something
like this.
Does anyone have an idea how to do?
Thanks in advance.
Adel
--
View
2008 Jun 18
3
Cluster on both categorical and numerical data
Hello there. Is there any function in R that can do cluster on a set of
data that has both categorical and numerical variables? thanks.
siangli
2008 Jul 05
5
help about random generation of a Normal distribution of several variables
Hello.
Somebody knows how can I generate a set of n random vectors of a
normal distribution of several variables?
For example, I want to generate n=100 random vectors of two dimensions
for a normal with mean c(0,1) and variance matrix:
matrix(c(2,1,1,3),2,2).
Thanks in advance,
Arnau.
2008 Jun 30
6
Plotting three time series on the same graph
Dear R Users,
I would like to plot three time series on the same graph, two axis on the
left and one axis on the right.
The time series that I am graphing on the left do not share a similar
scale: one has a range of 1:100 and the other a range of 25000:70000. How
can I display the tick marks for both on the left hand side without
superimposing them, i.e. one set of tick marks in black right
2018 Jan 10
1
[PATCH 5/6] crypto: stm32-hash: convert to the new crypto engine API
On 03/01/18 21:11, Corentin Labbe wrote:
> This patch convert the stm32-hash driver to the new crypto engine API.
>
> Signed-off-by: Corentin Labbe <clabbe.montjoie at gmail.com>
> ---
> drivers/crypto/stm32/stm32-hash.c | 18 +++++++++++++-----
> 1 file changed, 13 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/crypto/stm32/stm32-hash.c
2012 Jul 04
2
About nlminb function
Hello
I want to use the nlminb function but I have the objective function like
characters. I can summarize the problem using the first example in the
nlminb documentation.
x <- rnbinom(100, mu = 10, size = 10)
hdev <- function(par) -sum(dnbinom(x, mu = par[1], size = par[2], log =
TRUE))
nlminb(c(9, 12), objective=hdev)
With the last instructions we obtain appropriate results. If I have
2008 Dec 03
1
nlminb: names of parameter vector not passed to objective function
Dear R developers,
I tried to use nlminb instead of optim for a current problem (fitting
parameters of a differential equation model). The PORT algorithm
converged much better than any of optim's methods and the identified
parameters are plausible. However, it took me a while before spotting
the reason of a technical problem that nlminb, in contrast to optim,
does not pass names of the
2013 Apr 03
1
[PATCH] vhost: Add vhost_commit callback for SeaBIOS ROM region re-mapping
From: Nicholas Bellinger <nab at linux-iscsi.org>
This patch follows MST's recommendation to move checks for
vhost_verify_ring_mappings() -> cpu_physical_memory_map() operations
from MemoryListener->region_[add,del]() -> vhost_set_memory() into
final MemoryListener->commit() -> vhost_commit() callback.
It addresses the case where virtio-scsi vq ioport RAM re-mapping
to
2013 Apr 03
1
[PATCH] vhost: Add vhost_commit callback for SeaBIOS ROM region re-mapping
From: Nicholas Bellinger <nab at linux-iscsi.org>
This patch follows MST's recommendation to move checks for
vhost_verify_ring_mappings() -> cpu_physical_memory_map() operations
from MemoryListener->region_[add,del]() -> vhost_set_memory() into
final MemoryListener->commit() -> vhost_commit() callback.
It addresses the case where virtio-scsi vq ioport RAM re-mapping
to
2008 Sep 09
2
Problem of "sort" utf8 file.
Hi all,
I have 2 linux distro ?? ubuntu and centos.
My problem is that the sort command has different behavior when
sorting Chinese string encoded in utf8 file.
On Ubuntu, it is OK. But on CentOS, it WRONG.
I google this problem and it seems that's because of LC_COLLATE.
So I change "/etc/sysconfig/i18n" on CentOS and now the 2 have the
same LC_** like this:
CentOS:
2006 Sep 11
1
can't copy file.
i mount a windows share like this:
mount -t smbfs -o
iocharset=gb2312,codepage=936,username=administrator //192.168.10.27/cvs /mnt/windows
and try to copy file from /mnt/windows to my local disk.
but if came to file with chinese name it always told me "cp: can't creat
normal file , invalid argument."
by the way i can see the file name (in chinese),
and here is my locale:
LANG=zh_CN
2017 Nov 29
9
[PATCH RFC 0/4] crypto: engine - Permit to enqueue all async requests
Hello
The current crypto_engine support only ahash and ablkcipher.
My first patch which try to add skcipher was Nacked, it will add too many functions
and adding other algs(aead, asymetric_key) will make the situation worst.
This patchset remove all algs specific stuff and now only process generic crypto_async_request.
The requests handler function pointer are now moved out of struct engine and
2017 Nov 29
9
[PATCH RFC 0/4] crypto: engine - Permit to enqueue all async requests
Hello
The current crypto_engine support only ahash and ablkcipher.
My first patch which try to add skcipher was Nacked, it will add too many functions
and adding other algs(aead, asymetric_key) will make the situation worst.
This patchset remove all algs specific stuff and now only process generic crypto_async_request.
The requests handler function pointer are now moved out of struct engine and