Displaying 20 results from an estimated 2000 matches similar to: "fitting non-liner curves"
2005 Aug 06
1
help regarding functions & loops
I am new to R,so excuse me if its too basic. I have a vector of scores
S= {s1,s2,s3,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,sn}
n could be very large.
I want to find p-value for each score and I have the formula
pvalue= 1-exp(-exp(S))
so any ideas how to get this new vector P={p1,p2,p3,p4,p5....pn}
thankyou in advance
Rangesh
2005 Aug 03
4
R CMD build error
Dear list,
I try to update the prabclus package.
R CMD check works nicely, no warnings, good results in all tests.
However, building the package fails:
ginkgo:/disk5/home/chrish/RAusw/libsrc R CMD build prabclus
* checking for file 'prabclus/DESCRIPTION' ... OK
* preparing 'prabclus':
* checking whether 'INDEX' is up-to-date ... OK
* removing junk files
* building
2005 Jul 27
3
fitting extreme value distribution
hi,
rgev function gives me random deviates and I have a data
set which I am fitting to an EVD,IS there a way I can plot
both observed and ideal evd on the same plot
thankyou
Rangesh
2004 Nov 19
5
help! a urgent question
Dear Sir/Madam,
I am doing a project related to R.
However, it is always difficult find some R functions.
The R user guide seems not complete.
Is there any free document about all R functions ?
Who knows ? please help me.
My email is myzhaogong@yahoo.com
Thank you very much
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2013 Jul 27
4
[LLVMdev] Require Grammar for converting C to IR
Respected Sir/Madam,
As I was developing some part of compiler for a project. I require grammar
(BNF or EBNF) for converting the C code in the IR as it is not been
mentioned any where over your official website.
Awaiting for your help.
Regards,
Vijay Daultani.
M.Tech student
IIT Delhi
2023 Mar 20
4
DOUBT
Respected sir/madam
can you please suggest what is an unexpected symbol in the below code for
running a multinomial logistic regression
model <- multinom(adoption ~ age + education + HH size + landholding +
Farmincome + nonfarmincome + creditaccesibility + LHI, data=newdata)
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2004 Feb 22
6
help for MLE
Dear Sir/Madam,
I am using R version 1.8.1. I am doing following tast:
First generate 100 Gaussion(3,1) numbers, then write the likelihood function
to estimate the parameters of Gaussian distribution by direct maximizing the
likelihood function.
My likelihood function is:
>fn<-function(x)
>(-50*log((sd(x))^2))-50*log(sqrt(2*pi))-(1/2*((mean(x))^2))*(sum((x-(mean(x))^2))
After I
2018 Mar 04
3
sqlinux weirdness
Every now and then I get an alert like this one. I have no clue what this
"rear" subsystem is, or why madam would be trying to write to its log
file.
Can anyone enlighten me?
thanks in advance!
-------------------------
SELinux is preventing /usr/sbin/mdadm from write access on the file /var/log/rear/rear-fcshome.log.lockless.
***** Plugin restorecon (93.9 confidence) suggests
2017 Jan 22
2
Problem entering BIOS - Chison Ultrasound system
Hallo sir/madam,
I have a Chinese brand Ultrasound unit Ivis 60 model which had issues with
booting after power fluctuations here in Congo -Africa.
It is using a syslinux 3.31 which is continually giving problem when trying
to enter BIOS so that I can install new files available on the usb disk. To
enter bios you have to continually press "delete button" when starting the
unit but no
2010 Oct 12
3
F cumulative distribution function
Dear Sir or Madam:
Dose anyone know the R function which corresponds to "fcdf", a "F cumulative
distribution function" of Matlab?
http://esra.univ-paris1.fr/matlab5/toolbox/stats/fcdf.html
Please guide me how to get this function if it is available.
..... or code it ab initio if no function in R
language
Thanks for kind reply further.
Hsih-Te
2008 Feb 29
4
help
Dear Sir/Madam,
I got some problem about using R.
I am a student, and need to use R a lot. But sometimes when I am working in
computer lab, we can not install some particular pacakges by ourselves because
of the previliges.
Can the folder of Librabry of R, move to, for instance the personal folder, my
documents... then we can install any specified package?
Best regards,
2013 Jan 07
3
During startup - Warning messages:
Dear Sir/Madam,
After installing R, I saw this warning message in red when I open the R...
During startup - Warning messages:
1: Setting LC_CTYPE failed, using "C"
2: Setting LC_COLLATE failed, using "C"
3: Setting LC_TIME failed, using "C"
4: Setting LC_MESSAGES failed, using "C"
5: Setting LC_PAPER failed, using "C"
how shall I solve this ?
2010 Oct 23
4
Feedback on you manual
Dear Sir/Madam:
Great thanks for R project and you contribution.
I am Liping Liu, a beginner of R. Recently, I use R much. I wish you could
improve the manual by making it search engine friendly.
The "Introduction to R" page is too long. I am often redirected to this page
by goole, but I still can not find the content I need easily.
Could you please make it a structured: one page
2017 Jun 20
5
fitting cosine curve
Hi R users,
I have a question about fitting a cosine curve. I don't know how to set the
approximate starting values. Besides, does the method work for sine curve
as well? Thanks.
Part of the dataset is in the following:
y=c(16.82, 16.72, 16.63, 16.47, 16.84, 16.25, 16.15, 16.83, 17.41, 17.67,
17.62, 17.81, 17.91, 17.85, 17.70, 17.67, 17.45, 17.58, 16.99, 17.10)
t=c(7, 37, 58, 79, 96,
2017 Jun 20
0
fitting cosine curve
Hi lily,
You can get fairly good starting values just by eyeballing the curves:
plot(y)
lines(supsmu(1:20,y))
lines(0.6*cos((1:20)/3+0.6*pi)+17.2)
Jim
On Wed, Jun 21, 2017 at 9:17 AM, lily li <chocold12 at gmail.com> wrote:
> Hi R users,
>
> I have a question about fitting a cosine curve. I don't know how to set the
> approximate starting values. Besides, does the method
2011 Jun 22
3
Help Needed on Merging Columns by Summation
Dear Sirs/Madam,
I am a beginner to R, and I am currently working on a data matrix which looks like this:
> head(oligo)
ko:K00001 ko:K00003 ko:K00005 ko:K00008 ko:K00009 ko:K00010 ko:K00012
AAA 370 631 365 67 164 455 491
KAA 603 1208 170 157 68
2017 Sep 01
3
How to use getSymbols() to get annual data
Dear Sir/Madam,
How to use getSymbols() to get annual data? For example, I need the annual stock price of APPLE from the year 2000 to 2016. How to write the command? I only know how to get the daily data. It is:
getSymbols("AAPL",from="2000-01-01",to="2016-12-31")
Thank you very much.
Have a good week!
Best regards,
Yingrui Liu
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2013 Feb 25
3
Empirical Bayes Estimator for Poisson-Gamma Parameters
Dear Sir/Madam,
I apologize for any cross-posting. I got a simple question, which I thought
the R list may help me to find an answer. Suppose we have Y_1, Y_2, ., Y_n ~
Poisson (Lambda_i) and Lambda_i ~Gamma(alpha_i, beta_i). Empirical Bayes
Estimator for hyper-parameters of the gamma distr, i.e. (alpha_t, beta_t)
are needed.
y=c(12,5,17,14)
n=4
What about a Hierarchal B ayes
2008 Jul 25
2
problem in choosing cran mirror !
Dear Sir/Madam
?
?
why during choosing the cran mirror of India on my?Vista PC?gives an error of like this
?
> chooseCRANmirror()
Warning message:
?In open.connection(con, "r") : unable to resolve 'cran.r-project.org'
?
?
?
?
pls help me
?
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Thanks
From Chandigarh to Chennai - find friends all over India. Go to http://in.promos.yahoo.com/groups/citygroups/
2009 Apr 18
2
The law difference between country
Dear Madam or Sir,
I live in Japan. So I must comply with the nation's law.
When I install software for Linux, is there any easy way to know
whether the the installation and use of the software is legal or not?
Please teach me.
Hiraki