Re: [R] copula fitting

2014-06-10 Thread Suzen, Mehmet
yes you can.

On 7 June 2014 16:04, mudit gupta muditf...@gmail.com wrote:
 Hi guys,

 can i fit  a copula to two marginal  distributions with different sample
 size?
 like one has 2340 observations and other has 1912.

 thanks
 Mudit

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Re: [R] copula fitting

2014-06-10 Thread Suzen, Mehmet
Have you checked out 'copula' package?

On 11 June 2014 00:36, Suzen, Mehmet msu...@gmail.com wrote:
 yes you can.

 On 7 June 2014 16:04, mudit gupta muditf...@gmail.com wrote:
 Hi guys,

 can i fit  a copula to two marginal  distributions with different sample
 size?
 like one has 2340 observations and other has 1912.

 thanks
 Mudit

 [[alternative HTML version deleted]]

 __
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[R] copula fitting

2014-06-07 Thread mudit gupta
Hi guys,

can i fit  a copula to two marginal  distributions with different sample
size?
like one has 2340 observations and other has 1912.

thanks
Mudit

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[R] copula fitting

2014-06-01 Thread mudit gupta
Hi guys,

i have three standardized residuals series derived from ar(1,1)-aparch(1,1).
after that i used ecdf function to each of the three series.
now i want to proceed with copula fitting using  copula package.
can anyone point me in the right direction as to the r code and goodness of
fitness test.

also can coupla fitting be done ecdf derived above or i have to use a
uniform distribution but i guess thats what ecdf does, please confirm..


thanks,
mudit

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Re: [R] Copula Fitting Using R

2011-11-25 Thread Dennis Murphy
Hi:

This is the type of question for which the sos package can come to the rescue:

library('sos')
findFn('Gumbel Clayton copula')

It appears that the QRMlib package would be a reasonable place to start.

Dennis

On Thu, Nov 24, 2011 at 7:29 PM, cahaya iman qaisfay...@gmail.com wrote:
 Hi,

 Is anybody using Copula package for fitting copulas to own data?
 I have two marginals Log Normal with (parameters 1.17 and 0.76) and Gamma (
 2.7 and 1.05)

 Which package I should use to fit Gumbel and Clayton Copulas?

 Thanks,
 fayyad

        [[alternative HTML version deleted]]

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Re: [R] Copula Fitting Using R

2011-11-25 Thread Pfaff, Bernhard Dr.
Hello Denis  Fayyad,

in principal the advice given is appropriate, but QRMlib has been removed from 
CRAN lately, due to a glitch with its dependencies and the current version of 
R. Hence, to get the package installed and does not want to wait until it shows 
up on CRAN, one should to the following in the intermediate time:

1) Grab an old release of QRMlib from the CRAN archive.
2) Obtain the packages fSeries and fCalendar from R-Forge
3) Install 2) and 1) in that order.

Best,
Bernhard

ps: The package maintainer of QRMlib is aware of the problem and hopefully, the 
package QRMlib is fixed quite soon.  

-Ursprüngliche Nachricht-
Von: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] Im 
Auftrag von Dennis Murphy
Gesendet: Freitag, 25. November 2011 09:10
An: cahaya iman
Cc: r-help@r-project.org
Betreff: Re: [R] Copula Fitting Using R

Hi:

This is the type of question for which the sos package can come to the rescue:

library('sos')
findFn('Gumbel Clayton copula')

It appears that the QRMlib package would be a reasonable place to start.

Dennis

On Thu, Nov 24, 2011 at 7:29 PM, cahaya iman qaisfay...@gmail.com wrote:
 Hi,

 Is anybody using Copula package for fitting copulas to own data?
 I have two marginals Log Normal with (parameters 1.17 and 0.76) and Gamma (
 2.7 and 1.05)

 Which package I should use to fit Gumbel and Clayton Copulas?

 Thanks,
 fayyad

        [[alternative HTML version deleted]]

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Re: [R] Copula Fitting Using R

2011-11-25 Thread Spencer Graves
Two comments on the ability of the 'sos' package to identify this kind 
of thing:


   1.  The object returned by findFn can be passed to two other 
useful functions (as documented in a vignette, previously published in 
the R Journal):


 1.1.  installPackages, which attempts to install CRAN [or 
more precisely getOptions(repos)] packages not already available locally.


 1.2.  writeFindFn2xls, which attempts to create a *.xls 
file, whose first sheet is a summary by package of the results.  This 
summary identifies number of matches in each referenced package, date 
last updated, and other information to help users select among different 
available packages.  If the package is not available locally and not on 
CRAN, installPackages won't find it, and writeFindFn2xls will 
provide blanks for the information it tries to obtain from installed 
packages.


   2.  It would be nice if the 'findFn' results could also 
immediately identify which functions are in packages available locally 
and which repositories contain those not locally installed.  However, 
this would require modification to the RSiteSearch database, used by 
'findFn'.  Anyone willing to upgrade the RSiteSearch database is 
encouraged to contact Prof. Jonathan Baron (ba...@psych.upenn.edu), who 
has repeatedly asked for volunteer(s) to maintain it;  he has many other 
commitments, and would like to transfer this to someone else.


   Hope this helps.
   Spencer Graves


p.s.  Thanks to Dennis Murphy for demonstrating the utility of this 
package for this purpose and to Prof. Ripley for suggesting a possible 
enhancement to 'findFn'.

On 11/25/2011 1:04 AM, Pfaff, Bernhard Dr. wrote:
 Hello Denis  Fayyad,

 in principal the advice given is appropriate, but QRMlib has been removed 
 from CRAN lately, due to a glitch with its dependencies and the current 
 version of R. Hence, to get the package installed and does not want to wait 
 until it shows up on CRAN, one should to the following in the intermediate 
 time:

 1) Grab an old release of QRMlib from the CRAN archive.
 2) Obtain the packages fSeries and fCalendar from R-Forge
 3) Install 2) and 1) in that order.

 Best,
 Bernhard

 ps: The package maintainer of QRMlib is aware of the problem and hopefully, 
 the package QRMlib is fixed quite soon.

 -Ursprüngliche Nachricht-
 Von:r-help-boun...@r-project.org  [mailto:r-help-boun...@r-project.org] Im 
 Auftrag von Dennis Murphy
 Gesendet: Freitag, 25. November 2011 09:10
 An: cahaya iman
 Cc:r-help@r-project.org
 Betreff: Re: [R] Copula Fitting Using R

 Hi:

 This is the type of question for which the sos package can come to the rescue:

 library('sos')
 findFn('Gumbel Clayton copula')

 It appears that the QRMlib package would be a reasonable place to start.

 Dennis

 On Thu, Nov 24, 2011 at 7:29 PM, cahaya imanqaisfay...@gmail.com  wrote:
 Hi,

 Is anybody using Copula package for fitting copulas to own data?
 I have two marginals Log Normal with (parameters 1.17 and 0.76) and Gamma (
 2.7 and 1.05)

 Which package I should use to fit Gumbel and Clayton Copulas?

 Thanks,
 fayyad

 [[alternative HTML version deleted]]


 __
 R-help@r-project.org  mailing list
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-- 
Spencer Graves, PE, PhD
President and Chief Technology Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San José, CA 95126
ph:  408-655-4567
web:  www.structuremonitoring.com



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Re: [R] Copula Fitting Using R

2011-11-25 Thread Michael Kao

library(copula) could be helpful as well.

## Toy example for gumbel copula with log-normal distribution
## (Taken from the documentation of copula::fitMvdc)

## Specify the copula
gumbel.cop - gumbelCopula(3, dim=2)
myMvd - mvdc(gumbel.cop, c(lnorm,lnorm), list(list(meanlog = 1.17),

 list(meanlog = 0.76)))
## Generate some random sample to test
x - rmvdc(myMvd, 1000)

## Fit the random sample
fit - fitMvdc(x, myMvd, c(1,1,2))
fit

##  Jun Yan (2007). Enjoy the Joy of Copulas: With a Package copula.
## Journal of Statistical Software, 21(4), 1-21. URL
##  http://www.jstatsoft.org/v21/i04/.

##  Ivan Kojadinovic, Jun Yan (2010). Modeling Multivariate Distributions
##  with Continuous Margins Using the copula R Package. Journal of
##  Statistical Software, 34(9), 1-20. URL
##  http://www.jstatsoft.org/v34/i09/.

Cheers,

On 25/11/2011 9:09 a.m., Dennis Murphy wrote:

Hi:

This is the type of question for which the sos package can come to the rescue:

library('sos')
findFn('Gumbel Clayton copula')

It appears that the QRMlib package would be a reasonable place to start.

Dennis

On Thu, Nov 24, 2011 at 7:29 PM, cahaya imanqaisfay...@gmail.com  wrote:

Hi,

Is anybody using Copula package for fitting copulas to own data?
I have two marginals Log Normal with (parameters 1.17 and 0.76) and Gamma (
2.7 and 1.05)

Which package I should use to fit Gumbel and Clayton Copulas?

Thanks,
fayyad

[[alternative HTML version deleted]]

__
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and provide commented, minimal, self-contained, reproducible code.


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Re: [R] Copula Fitting Using R

2011-11-25 Thread Michael Kao
I don't know why my last email didn't go through properly, but library 
copula is still active.


Here is a toy example with reference.

## Toy example for gumbel copula with log-normal distribution
## (Taken from the documentation of copula::fitMvdc)

## Specify the copula
gumbel.cop - gumbelCopula(3, dim=2)
myMvd - mvdc(gumbel.cop, c(lnorm,lnorm), list(list(meanlog = 1.17),
 
  list(meanlog = 0.76)))

## Generate some random sample to test
x - rmvdc(myMvd, 1000)

## Fit the random sample
fit - fitMvdc(x, myMvd, c(1,1,2))
fit

##  Jun Yan (2007). Enjoy the Joy of Copulas: With a Package copula.
## Journal of Statistical Software, 21(4), 1-21. URL
##  http://www.jstatsoft.org/v21/i04/.

##  Ivan Kojadinovic, Jun Yan (2010). Modeling Multivariate Distributions
##  with Continuous Margins Using the copula R Package. Journal of
##  Statistical Software, 34(9), 1-20. URL
##  http://www.jstatsoft.org/v34/i09/.

Cheers,

On 25/11/2011 10:04 a.m., Pfaff, Bernhard Dr. wrote:

Hello Denis  Fayyad,

in principal the advice given is appropriate, but QRMlib has been removed from 
CRAN lately, due to a glitch with its dependencies and the current version of 
R. Hence, to get the package installed and does not want to wait until it shows 
up on CRAN, one should to the following in the intermediate time:

1) Grab an old release of QRMlib from the CRAN archive.
2) Obtain the packages fSeries and fCalendar from R-Forge
3) Install 2) and 1) in that order.

Best,
Bernhard

ps: The package maintainer of QRMlib is aware of the problem and hopefully, the 
package QRMlib is fixed quite soon.

-Ursprüngliche Nachricht-
Von: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] Im 
Auftrag von Dennis Murphy
Gesendet: Freitag, 25. November 2011 09:10
An: cahaya iman
Cc: r-help@r-project.org
Betreff: Re: [R] Copula Fitting Using R

Hi:

This is the type of question for which the sos package can come to the rescue:

library('sos')
findFn('Gumbel Clayton copula')

It appears that the QRMlib package would be a reasonable place to start.

Dennis

On Thu, Nov 24, 2011 at 7:29 PM, cahaya imanqaisfay...@gmail.com  wrote:

Hi,

Is anybody using Copula package for fitting copulas to own data?
I have two marginals Log Normal with (parameters 1.17 and 0.76) and Gamma (
2.7 and 1.05)

Which package I should use to fit Gumbel and Clayton Copulas?

Thanks,
fayyad

[[alternative HTML version deleted]]

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[R] Copula Fitting Using R

2011-11-24 Thread cahaya iman
Hi,

Is anybody using Copula package for fitting copulas to own data?
I have two marginals Log Normal with (parameters 1.17 and 0.76) and Gamma (
2.7 and 1.05)

Which package I should use to fit Gumbel and Clayton Copulas?

Thanks,
fayyad

[[alternative HTML version deleted]]

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Re: [R] Copula fitting

2008-06-11 Thread Frankg

first, verify the class of your data by the following code:
class(data)
the class must be numeric

if ok

the problem can be caused from the starting value. Try choose other value. 
-- 
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http://www.nabble.com/-R--Copula-fitting-tp6947714p17786789.html
Sent from the R help mailing list archive at Nabble.com.

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