Displaying 11 results from an estimated 11 matches for "ldab".
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2019 Sep 11
4
Fw: Calling a LAPACK subroutine from R
...e a folder (directory) src in the directory where your script resides.
> Create a wrapper for "dpbtrf" file in a file xdpbtrf.f that takes an integer instead of character
>
> <xdpbtrf.f>
> c intermediate for dpbtrf
>
> SUBROUTINE xDPBTRF( kUPLO, N, KD, AB, LDAB, INFO )
>
> c .. Scalar Arguments ..
> integer kUPLO
> INTEGER INFO, KD, LDAB, N
>
> c .. Array Arguments ..
> DOUBLE PRECISION AB( LDAB, * )
>
> character UPLO
> c convert integer argument to character
>...
2019 Sep 11
4
Fw: Calling a LAPACK subroutine from R
...1 + phi^2, n-2), 1)
> AB[2, -n] <- -phi
> round(AB, 3)
[,1] [,2] [,3] [,4]
[1,] 1.00 1.41 1.41 1
[2,] -0.64 -0.64 -0.64 0
>
> ### Cholesky factor
> AB.ch <- .Fortran("dpbtrf", UPLO = 'L', N = as.integer(n),
+ KD = 1L, AB = AB, LDAB = 2L, INFO = as.integer(0))$AB
Error in .Fortran("dpbtrf", UPLO = "L", N = as.integer(n), KD = 1L, AB = AB, :
Fortran symbol name "dpbtrf" not in load table
> sessionInfo()
R version 3.6.0 (2019-04-26)
Platform: x86_64-apple-darwin18.5.0 (64-bit)
Running under: m...
2019 Sep 12
1
Calling a LAPACK subroutine from R
...ory) src in the directory where your script resides.
>>> Create a wrapper for "dpbtrf" file in a file xdpbtrf.f that takes an integer instead of character
>>> <xdpbtrf.f>
>>> c intermediate for dpbtrf
>>> SUBROUTINE xDPBTRF( kUPLO, N, KD, AB, LDAB, INFO )
>>> c .. Scalar Arguments ..
>>> integer kUPLO
>>> INTEGER INFO, KD, LDAB, N
>>> c .. Array Arguments ..
>>> DOUBLE PRECISION AB( LDAB, * )
>>> character UPLO
>>> c convert integer...
2019 Sep 11
0
Fw: Calling a LAPACK subroutine from R
...hat you want.
Here goes.
Create a folder (directory) src in the directory where your script resides.
Create a wrapper for "dpbtrf" file in a file xdpbtrf.f that takes an integer instead of character
<xdpbtrf.f>
c intermediate for dpbtrf
SUBROUTINE xDPBTRF( kUPLO, N, KD, AB, LDAB, INFO )
c .. Scalar Arguments ..
integer kUPLO
INTEGER INFO, KD, LDAB, N
c .. Array Arguments ..
DOUBLE PRECISION AB( LDAB, * )
character UPLO
c convert integer argument to character
if(kUPLO .eq. 1 ) then
UPLO = 'L'...
2019 Sep 11
1
Fw: Calling a LAPACK subroutine from R
...es.
> > Create a wrapper for "dpbtrf" file in a file xdpbtrf.f that takes
> an integer instead of character
> >
> > <xdpbtrf.f>
> > c intermediate for dpbtrf
> >
> >? ? ? ? SUBROUTINE xDPBTRF( kUPLO, N, KD, AB, LDAB, INFO )
> >
> > c? ? ? .. Scalar Arguments ..
> >? ? ? ? integer? ? ? ? ?kUPLO
> >? ? ? ? INTEGER? ? ? ? ?INFO, KD, LDAB, N
> >
> > c? .. Array Arguments ..
> >? ? ? ? DOUBLE PRECISION? ?AB( LDAB, * )
> >
>...
2019 Sep 12
0
Calling a LAPACK subroutine from R
...folder (directory) src in the directory where your script resides.
>> Create a wrapper for "dpbtrf" file in a file xdpbtrf.f that takes an integer instead of character
>> <xdpbtrf.f>
>> c intermediate for dpbtrf
>> SUBROUTINE xDPBTRF( kUPLO, N, KD, AB, LDAB, INFO )
>> c .. Scalar Arguments ..
>> integer kUPLO
>> INTEGER INFO, KD, LDAB, N
>> c .. Array Arguments ..
>> DOUBLE PRECISION AB( LDAB, * )
>> character UPLO
>> c convert integer argument to character
&...
2019 Sep 11
0
Fw: Calling a LAPACK subroutine from R
...ctory where your script
> resides.
> > Create a wrapper for "dpbtrf" file in a file xdpbtrf.f that takes an
> integer instead of character
> >
> > <xdpbtrf.f>
> > c intermediate for dpbtrf
> >
> > SUBROUTINE xDPBTRF( kUPLO, N, KD, AB, LDAB, INFO )
> >
> > c .. Scalar Arguments ..
> > integer kUPLO
> > INTEGER INFO, KD, LDAB, N
> >
> > c .. Array Arguments ..
> > DOUBLE PRECISION AB( LDAB, * )
> >
> > character UPLO
> > c...
2019 Sep 12
2
Fw: Calling a LAPACK subroutine from R
...ate a folder (directory) src in the directory where your script resides.
> Create a wrapper for "dpbtrf" file in a file xdpbtrf.f that takes an integer instead of character
>
> <xdpbtrf.f>
> c intermediate for dpbtrf
>
> SUBROUTINE xDPBTRF( kUPLO, N, KD, AB, LDAB, INFO )
>
> c .. Scalar Arguments ..
> integer kUPLO
> INTEGER INFO, KD, LDAB, N
>
> c .. Array Arguments ..
> DOUBLE PRECISION AB( LDAB, * )
>
> character UPLO
> c convert integer argument to character
>...
2019 Sep 12
0
Fw: Calling a LAPACK subroutine from R
...for "dpbtrf" file in a file xdpbtrf.f that takes
>>>>> an integer instead of character
>>>>>
>>>>> <xdpbtrf.f>
>>>>> c intermediate for dpbtrf
>>>>>
>>>>> SUBROUTINE xDPBTRF( kUPLO, N, KD, AB, LDAB, INFO )
>>>>>
>>>>> c????? .. Scalar Arguments ..
>>>>> integer???????? kUPLO
>>>>> INTEGER???????? INFO, KD, LDAB, N
>>>>>
>>>>> c? .. Array Arguments ..
>>>>> DOUBLE PRECISION?? AB( LDAB, * )...
2019 Sep 10
2
Calling a LAPACK subroutine from R
...+ phi^2, n-2), 1)
> AB[2, -n] <- -phi
> round(AB, 3)
[,1] [,2] [,3] [,4]
[1,] 1.00 1.41 1.41 1
[2,] -0.64 -0.64 -0.64 0
>
> ### Cholesky factor
> AB.ch <- .Fortran("dpbtrf", UPLO = 'L', N = as.integer(n),
+ KD = 1L, AB = AB, LDAB = 2L, INFO = as.integer(0))$AB
Error in .Fortran("dpbtrf", UPLO = "L", N = as.integer(n), KD = 1L, AB = AB, :
Fortran symbol name "dpbtrf" not in load table
> sessionInfo()
R version 3.6.0 (2019-04-26)
Platform: x86_64-apple-darwin18.5.0 (64-bit)
Running under:...
2019 Sep 10
2
Calling a LAPACK subroutine from R
...+ phi^2, n-2), 1)
> AB[2, -n] <- -phi
> round(AB, 3)
[,1] [,2] [,3] [,4]
[1,] 1.00 1.41 1.41 1
[2,] -0.64 -0.64 -0.64 0
>
> ### Cholesky factor
> AB.ch <- .Fortran("dpbtrf", UPLO = 'L', N = as.integer(n),
+ KD = 1L, AB = AB, LDAB = 2L, INFO = as.integer(0))$AB
Error in .Fortran("dpbtrf", UPLO = "L", N = as.integer(n), KD = 1L, AB = AB, :
Fortran symbol name "dpbtrf" not in load table
> sessionInfo()
R version 3.6.0 (2019-04-26)
Platform: x86_64-apple-darwin18.5.0 (64-bit)
Running under:...