Displaying 20 results from an estimated 4000 matches similar to: "Trouble installing pwr package"
2008 Oct 24
1
pwr.2p2n.test when the ratio of n1/n2 is known
Hi,
I am trying to do a power calculation for a difference in proportions
test where I want to estimate the sample size required. I know (well
estimate) that group one (n1) is 10% of the population and group 2 (n2)
is 90% of the population. I know the effect size (h). pwr.2p2n.test
only allows one variable to be left null whereas I would like both n1
and n2 to be determined where I know there
2011 Apr 15
1
simulations with very large number of iterations (1 billion)
Hello R-help list
I'm trying to run 1 billion iterations of a code with calls to random
distributions to implement a data generating process and subsequent
computation of various estimators that are recorded for further
comparison of performance. I have two question about how to achieve
this:
1. the most important: on my laptop, R gives me an error message
saying that it cannot
2014 Dec 23
2
[PATCH V2 2/4] pwr: make nouveau_pwr_pgob() non-static
On 12/22/2014 05:11 PM, Vince Hsu wrote:
> The platform device does not use the common nouveau_pwr_init() to initialize
> the PWR, but it does need the .prob() be assigned to avoid NULL pointer
> dereference in graph/nve4.c.
s/prob/pgob/ :-(
Will fix in next version.
>
> Signed-off-by: Vince Hsu <vinceh at nvidia.com>
> ---
>
> v2: this patch is added since v2. (v1
2008 Dec 16
1
pwr.prop.test and continuity correction
Hi,
I am trying to sort out a discrepancy between power calculations results
between me and another statistician. I use R but I am not sure what she
uses. It is on the proportions test and so I have been using
pwr.prop.test. I think I have tracked the problem down to pwr.prop.test
not using the continuity correction for the test (I did this by using
the java applet from
2008 Jun 20
2
Problems with basic loop
I'm having trouble creating a looping variable and i can't see wher ethe
problem arises from any hep gratfully appreciated
First create a table
x<-table(SURVEY$n_0,exposed)
> x
exposed
False True
Under 16 24 1
16-19 68 9
20-24 190 37
25-34 555 204
35-44 330 87
45-54 198 65
55-64 67 35
65+
2012 Jun 24
2
Power calculation using pwr.t.test()
Dear R experts,
I have conducted a power calculation in order to estimate the number of
subjects needed to detect an effect size of d=0.28 (cohen's d) for a
difference between two independent groups (alpha level should be 0.05 and
the effect should be detected with 80% probability).
The results from the code below indicates that I would need n=400 subjects
(200 in each group). This is seems
2010 Jun 10
1
Power calculation
Hello,
Is there any R function which does power calculation for unbalanced groups (n1 neq n2)? Since power.t.test has n
Number of observations (per group).
Many thanks,
Samuel
[[alternative HTML version deleted]]
2014 Aug 02
3
pwr/macros: Stop playing Russian roulette on data memory
This patch fixes the pwr firmware to play nicely at least on NVA3. Because Martin might send more patches soon, I didn't include a regenerated nvXX.fuc.h. To me it makes more sense if all patches are merged then, and a final patch regenerates the headers in one go. Of course, I did test this patch and found it to work as intended, so feel free to pick up as you please.
2008 Jun 20
1
Unexpected Behavior (potentially) in t.test
Greetings,
I have stumbled across some unexpected behavior (potential a bug) in, what I
suspect to be R's (2.6.2 on Ubuntu Linux) t.test function; then again the
problem may exist in my code. I have shutdown R and started it back up,
re-run the code and re-experienced the error. I have searched on Google for
the abnormal termination error message "(stderr < 10 * .Machine$double.eps *
2008 May 05
2
pwr package
Hello,
I'm a new user of the R environment. I need to do some power analysis.
For this purpose, I installed the "pwr" package from the R window, but
unfortunately something went wrong. The installation of the package
was successful (I got a message saying so in R) but when I enter a
function of that package it says that the function does not exist!
I appreciate your help,
2008 Jun 17
1
Z test and proportions
Hi All,
I have a table based on ordial data and i want to compare proportions and
i've seen in the pwr package i can use
power.prop.test
however i want to find out what the sig. value is based on n1,n2,p1,p2 and
this package doesn't contain this..
Does anyone know of a package that does or is it a case of writting a
function specifically for this?
Many thanks in advance
[[alternative
2014 Aug 17
0
[PATCH 09/10] pwr/fuc: make $r1-$r10 registers callee-saved in kernel.fuc
From: Martin Peres <martin.peres at labri.fr>
---
nvkm/subdev/pwr/fuc/kernel.fuc | 13 +++++++++++++
nvkm/subdev/pwr/fuc/nv108.fuc.h | 25 +++++++++++--------------
nvkm/subdev/pwr/fuc/nva3.fuc.h | 23 ++++++++++-------------
nvkm/subdev/pwr/fuc/nvc0.fuc.h | 23 ++++++++++-------------
nvkm/subdev/pwr/fuc/nvd0.fuc.h | 23 ++++++++++-------------
5 files changed, 54 insertions(+), 53
2014 Dec 22
0
[PATCH V2 2/4] pwr: make nouveau_pwr_pgob() non-static
The platform device does not use the common nouveau_pwr_init() to initialize
the PWR, but it does need the .prob() be assigned to avoid NULL pointer
dereference in graph/nve4.c.
Signed-off-by: Vince Hsu <vinceh at nvidia.com>
---
v2: this patch is added since v2. (v1 is the RFC actually)
nvkm/subdev/pwr/base.c | 2 +-
nvkm/subdev/pwr/priv.h | 1 +
2 files changed, 2 insertions(+), 1
2015 Jan 04
0
[PATCH V2 2/4] pwr: make nouveau_pwr_pgob() non-static
On Tue, Dec 23, 2014 at 11:37 AM, Vince Hsu <vinceh at nvidia.com> wrote:
>
> On 12/22/2014 05:11 PM, Vince Hsu wrote:
>>
>> The platform device does not use the common nouveau_pwr_init() to
>> initialize
>> the PWR, but it does need the .prob() be assigned to avoid NULL pointer
>> dereference in graph/nve4.c.
>
> s/prob/pgob/ :-(
> Will fix in
2014 Sep 04
0
[PATCH 3/8] pwr/memx: Make FB disable and enable explicit
Needs to be done after wait-for-VBLANK, and NVA3 requires register writes in between. Rather than hard-coding register writes, just split out fb_disable and fb_enable.
Signed-off-by: Roy Spliet <rspliet at eclipso.eu>
---
drivers/gpu/drm/nouveau/core/include/subdev/pwr.h | 2 ++
drivers/gpu/drm/nouveau/core/subdev/fb/ramfuc.h | 14 ++++++++++++++
2012 Feb 10
3
problem subsetting data frame with variable instead of constant
Hello,
I've encountered a very weird issue with the method subset(), or maybe this
is something I don't know about said method that when you're subsetting
based on the columns of a data frame you can only use constants (0.1, 2.3,
2.2) instead of variables?
Here's a look at my data frame called 'ea.cad.pwr':
*>ea.ca.pwr[1:5,]
MAF OR POWER
1 0.02 0.01 0.9999
2 0.02
2004 Jun 14
2
Member Server in Active Directory
I'm trying to join a Samba 3.0.4 (compiled from source on Debian) to an
Active Directory as a member server. I believe Kerberos is configured
correctly as kinit creates a ticket for the realm. Executables appear to have
support for Kerberos and LDAP (smbd -b | grep KRB and grep LDAP) return OK.
When I try to join the AD with
net ads join -U myadminusername
I'm prompted for my
2006 Mar 02
1
finding ncp for t distribution
Dear R-users,
I am wondering whether R implements a function returning the non central
parameter of a t distribution (equivalent of the TnoncT function from
SAS), given /x/ a value from a t distribution, /df /the degrees of
freedom and /p/ the probability of x under this distribution.
Thanks a lot,
Matthieu
--
Matthieu Dubois, /Ph.D/. /Student/
Cognitive Neuroscience Unit, UCL,
2007 Oct 27
1
Package Installer Fails in OSX 10.5 Leopard
Hello all,
I apologize in advance if this is not the correct list to post these sorts
of issues. When attempting to install the latest stable build of R (2.6) or
the most recent nightly build from R.research.att.com, the installer
disables the ability to actually install R or any of the other bundled
frameworks (i.e. the list is unchecked and grayed out). Before I start
trying to either coerce the
2011 Dec 17
1
properly check for _DSM function support and Optimus support for vga_switcheroo
Hello guys,
I've prepared a patch based on my findings for the bbswitch module
(https://github.com/Lekensteyn/acpi-stuff/tree/master/bbswitch). This adds
a proper
check whether a _DSM function is supported or not and make OFF / ON for
vga_switcheroo work for nVidia Optimus models. The patch is based against
the
mainline kernel.
It has been tested on my Clevo B7130 laptop running kernel 3.2