Re: [R] BY GROUP IN GEV

2011-06-29 Thread Peter Maclean
Dennis:
It walks for small datset.

 Peter Maclean
Department of Economics
UDSM 



- Original Message 
From: Dennis Murphy 
To: Peter Maclean 
Cc: r-help@r-project.org
Sent: Mon, June 27, 2011 8:37:00 PM
Subject: Re: [R] BY GROUP IN GEV

HI:

Since you didn't provide a reproducible example (in particular, what
does str(MA) return?), it's hard to verify what specifically causes
the error, but a look at the gev() function's help page indicates that
the first argument is supposed to be a (numeric) vector, apparently
atomic.

One problem with this code,
CP  <- lapply(MAS, function(x){gev(MAS$CP1, 100, method = "BFGS", control =
list(maxit = 500))})

is that there is no 'x' in the body of the function. Perhaps you need
to generate a numeric vector for CP1 before feeding it to gev(), but
without a reproducible example this is nothing more than speculation.
Perhaps something like:

CP  <- lapply(MAS, function(x){
            y <- as.numeric(x$CP1)
            gev(y, 100, method = "BFGS", control = list(maxit = 500))
        })

Obviously untested for the reason stated above. A perusal of the
Posting Guide might be beneficial.

Dennis

On Mon, Jun 27, 2011 at 3:19 PM, Peter Maclean  wrote:
> Hi Dennis:
> I tried your suggestions and I am getting the following errors:
>
> Error in x$CP1 : $ operator is invalid for atomic vectors
> In addition: Warning message:
> In sqrt(diag(varcov)) : NaNs produced
>
>  Peter Maclean
> Department of Economics
> UDSM
>
>
>
> - Original Message 
> From: Dennis Murphy 
> To: Peter Maclean 
> Sent: Wed, June 22, 2011 11:37:02 PM
> Subject: Re: [R] BY GROUP IN GEV
>
> Hi:
>
> I think you need
>
> CP  <- lapply(MAS, function(x){gev(x$CP1, 100, method = "BFGS", control =
>                     list(maxit = 500))})
>
> See if that works out.
>
> HTH,
> Dennis
>
> On Wed, Jun 22, 2011 at 4:06 PM, Peter Maclean  wrote:
>> I am trying to run gev (general extreme value) function in “evir” package. My
>> data is divided by state. I am using the following codes but it is not
> working.
>> I will appreciate any help.
>>
>> #Split data
>> MAS <- split(MA, MA$states)
>>
>> CP  <- lapply(MAS, function(x){gev(MAS$CP1, 100, method = "BFGS", control =
>> list(maxit = 500))})
>>
>> the Error message is:
>>
>> Error in tapply(data, grouping, max) : arguments must have same length
>>
>> I know there are also “by” function,  but I could not figure it out how to 
use
>> it.
>>
>> __
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>


__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] BY GROUP IN GEV

2011-06-27 Thread Dennis Murphy
HI:

Since you didn't provide a reproducible example (in particular, what
does str(MA) return?), it's hard to verify what specifically causes
the error, but a look at the gev() function's help page indicates that
the first argument is supposed to be a (numeric) vector, apparently
atomic.

One problem with this code,
CP  <- lapply(MAS, function(x){gev(MAS$CP1, 100, method = "BFGS", control =
list(maxit = 500))})

is that there is no 'x' in the body of the function. Perhaps you need
to generate a numeric vector for CP1 before feeding it to gev(), but
without a reproducible example this is nothing more than speculation.
Perhaps something like:

CP  <- lapply(MAS, function(x){
y <- as.numeric(x$CP1)
gev(y, 100, method = "BFGS", control = list(maxit = 500))
 })

Obviously untested for the reason stated above. A perusal of the
Posting Guide might be beneficial.

Dennis

On Mon, Jun 27, 2011 at 3:19 PM, Peter Maclean  wrote:
> Hi Dennis:
> I tried your suggestions and I am getting the following errors:
>
> Error in x$CP1 : $ operator is invalid for atomic vectors
> In addition: Warning message:
> In sqrt(diag(varcov)) : NaNs produced
>
>  Peter Maclean
> Department of Economics
> UDSM
>
>
>
> - Original Message 
> From: Dennis Murphy 
> To: Peter Maclean 
> Sent: Wed, June 22, 2011 11:37:02 PM
> Subject: Re: [R] BY GROUP IN GEV
>
> Hi:
>
> I think you need
>
> CP  <- lapply(MAS, function(x){gev(x$CP1, 100, method = "BFGS", control =
>                     list(maxit = 500))})
>
> See if that works out.
>
> HTH,
> Dennis
>
> On Wed, Jun 22, 2011 at 4:06 PM, Peter Maclean  wrote:
>> I am trying to run gev (general extreme value) function in “evir” package. My
>> data is divided by state. I am using the following codes but it is not
> working.
>> I will appreciate any help.
>>
>> #Split data
>> MAS <- split(MA, MA$states)
>>
>> CP  <- lapply(MAS, function(x){gev(MAS$CP1, 100, method = "BFGS", control =
>> list(maxit = 500))})
>>
>> the Error message is:
>>
>> Error in tapply(data, grouping, max) : arguments must have same length
>>
>> I know there are also “by” function,  but I could not figure it out how to 
>> use
>> it.
>>
>> __
>> R-help@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] BY GROUP IN GEV

2011-06-27 Thread Peter Maclean
Hi Dennis:
I tried your suggestions and I am getting the following errors:

Error in x$CP1 : $ operator is invalid for atomic vectors
In addition: Warning message:
In sqrt(diag(varcov)) : NaNs produced

 Peter Maclean
Department of Economics
UDSM 



- Original Message 
From: Dennis Murphy 
To: Peter Maclean 
Sent: Wed, June 22, 2011 11:37:02 PM
Subject: Re: [R] BY GROUP IN GEV

Hi:

I think you need

CP  <- lapply(MAS, function(x){gev(x$CP1, 100, method = "BFGS", control =
                    list(maxit = 500))})

See if that works out.

HTH,
Dennis

On Wed, Jun 22, 2011 at 4:06 PM, Peter Maclean  wrote:
> I am trying to run gev (general extreme value) function in “evir” package. My
> data is divided by state. I am using the following codes but it is not 
working.
> I will appreciate any help.
>
> #Split data
> MAS <- split(MA, MA$states)
>
> CP  <- lapply(MAS, function(x){gev(MAS$CP1, 100, method = "BFGS", control =
> list(maxit = 500))})
>
> the Error message is:
>
> Error in tapply(data, grouping, max) : arguments must have same length
>
> I know there are also “by” function,  but I could not figure it out how to use
> it.
>
> __
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>


__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] BY GROUP IN GEV

2011-06-22 Thread Peter Maclean
I am trying to run gev (general extreme value) function in “evir” package. My 
data is divided by state. I am using the following codes but it is not working. 
I will appreciate any help.
 
#Split data
MAS <- split(MA, MA$states)
 
CP  <- lapply(MAS, function(x){gev(MAS$CP1, 100, method = "BFGS", control = 
list(maxit = 500))})
 
the Error message is:
 
Error in tapply(data, grouping, max) : arguments must have same length
 
I know there are also “by” function,  but I could not figure it out how to use 
it.

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.