From: Jeff Newmiller
oject.org>; Berend Hasselman
Cc: R-help Mailing List
Sent: Sunday, September 24, 2017 12:41 AM
Subject: Re: [R] gsDesign Pocock & OBF boundary
Still failed.
The first secret is in your email program settings, to use Plain Text format
(at least
o
>interim
>Can anyone share some light whether the above analysis is still valid?
>Or for unequal spacing, I have to use Lan-Demet’s error spending
>function approximations? Thank you,
>
>
>
> From: Berend Hasselman
> To: array chip
>Cc: R-help Mailing List
&g
her the above analysis is still valid? Or for
unequal spacing, I have to use Lan-Demet’s error spending function
approximations? Thank you,
From: Berend Hasselman
To: array chip
Cc: R-help Mailing List
Sent: Friday, September 22, 2017 11:46 PM
Subject: Re: [R] gsDesign Pocock & OBF b
> On 23 Sep 2017, at 01:32, array chip via R-help wrote:
>
> Hi,
>
> I am learning to use your gsDesign package! I have a question about Pocock
> and OBF boundary. As far as Iunderstand, these 2 boundaries require equal
> spacing between interim analyses(maybe this is not correct?). But I ca
Hi,
I am learning to use your gsDesign package! I have a question about Pocock and
OBF boundary. As far as Iunderstand, these 2 boundaries require equal spacing
between interim analyses(maybe this is not correct?). But I can still use
gsDesign to run an analysisbased on unequal spacing:
gsDes
Thank you so much for the help! It is really appreciated!
Dongli
On Nov 15, 2011, at 9:19 AM, Marc Schwartz wrote:
> Hi Dongli,
>
> Sorry for the delay in following up.
>
> You might want to read the dsDesignManual.pdf document, which is available in
> the 'inst/doc' folder in the package so
Hi Dongli,
Sorry for the delay in following up.
You might want to read the dsDesignManual.pdf document, which is available in
the 'inst/doc' folder in the package source tarball on CRAN, or in the package
'doc' directory in your R installation. Use:
system.file(package = "gsDesign")
to get
6:13 PM
> To: Marc Schwartz
> Cc: r-help@r-project.org
> Subject: Re: [R] gsDesign
>
> Hi, Marc,
>
> Thank you very much for the reply. I'm using the gsDesign
> function to create an object of type gsDesign. But the inputs
> do not include the 'ratio' a
Hi, Marc,
Thank you very much for the reply. I'm using the gsDesign function to create an
object of type gsDesign. But the inputs do not include the 'ratio' argument.
Dongli
On Nov 14, 2011, at 5:50 PM, Marc Schwartz wrote:
> On Nov 14, 2011, at 4:11 PM, Dongli Zhou wrote:
>
>> I'm trying t
On Nov 14, 2011, at 4:11 PM, Dongli Zhou wrote:
> I'm trying to use gsDesign for a noninferiority trial with binary
> endpoint. Did anyone know how to specify the trial with different sample
> sizes for two treatment groups? Thanks in advance!
Hi,
Presuming that you are using the nBinomial() fu
I'm trying to use gsDesign for a noninferiority trial with binary
endpoint. Did anyone know how to specify the trial with different sample
sizes for two treatment groups? Thanks in advance!
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