Displaying 20 results from an estimated 3000 matches similar to: "a very simple problem, but unknown solution"
2003 Jun 07
1
beginner's question: Graphical presentation of t test
Hi,
Is there any way to use R to present t test results for three groups of
experiments, each of which involves several parallel experiment series with
groups of control vs treated. I would like to present the average fold change
of the experimental parameter (concentration of enzymes) as bars with
standard error and the p value above the bar. So, there should be two groups
(control vs
2011 Nov 05
1
Correlation between matrices
> regions = c('cortex', 'hippocampus', 'brain_stem', 'mid_brain',
'cerebellum')
> mice = paste('mouse', 1:5, sep='')
> for (n in c('Cu', 'Fe', 'Zn', 'Ca', 'Enzyme')) {
+ assign(n, as.data.frame(replicate(5, rnorm(5))))
+ }
> names(Cu) = names(Zn) = names(Fe) = names(Ca) = names(Enzyme) =
2019 Apr 29
2
dfree command in homes section
Hi everyone,
we are using custom dfree commands to implement quotas. While these work fine on normal shares, the "dfree command" parameter seems to be ignored in the homes section. Is this correct (and intended)?
Best regards
Felix
IT-Services
Telefon 02461 61-9243
E-Mail: f.stolte at fz-juelich.de
-------------------------------------------------------------------------------------
2010 Jul 13
4
Enable async journals
Hi all,
we use SLES 11 and Lustre 1.8.1.1 + patches and like convert a lustre FS
using external journals to one with async journals enabled.
Question is whether the procedure:
umount <filesystem> on all clients
umount <osts> on all OSSes
e2fsck <ost-device> on all OSSes for all all OSTs
tune2fs -O ^has_journal <ost-device> on all
2024 Apr 18
1
Filelocking Issue in 4.18.11
Hi Felix,
On 4/18/24 08:33, Stolte, Felix via samba wrote:
> Is this a bug or maybe a misconfiguration? In the latter, which parameters could cause this?
I guess the nodes end up using different combinations of dev/inode as
primary key for the locking.tdb record. Probably because the device
numbers differ on the nodes and you didn't fix this known issue with
GPFS with the fileid VFS
2010 Dec 16
2
[BUG?] There is a possibility that 'i_ino' overflows
Hi,
In btrfs, inode number is increased each time a new file or directory
is made.
Therefore, if the making deletion of the file is repeated, value of
''i_ino'' increases rapidly.
For example, inode number changes as follows.
$ touch foo
$ ls -i foo
266 foo
$ rm foo
$ touch bar
$ ls -i bar
267 bar
$
And then, length of ''i_ino'' and
2006 Feb 22
1
Rails with postgres-oids?
Hello!
Postgres supports oids which is a unique number for any row in a given
database. There is the ''id'' already inside oids - wouldnt it be nice and
handy to turn on some global environemt.rb or database.yaml magic-switch
and rails uses the oids internally and transparently on the postgresql
adapter, sparing people the need to create auto-increment-serial ids
with
2010 Sep 02
2
blk_rq_check_limits errors
On Thursday, September 02, 2010, Frank Heckes wrote:
> Hi all,
>
> for some of our OSSes a massive amount of errors like:
>
> Sep 2 20:28:15 jf61o02 kernel: blk_rq_check_limits: over max size
> limit.
>
> appearing in /var/log/messages (and dmesg). Does anyone have got a clue
> how-to get of the root cause? Many thanks in advance.
linux/block/blk-core.c
int
2018 Jul 17
2
"Random" crashes of Samba as AD DC
Hey all,
up until 2 weeks ago my samba DC was running just fine, then it began crashing randomly.
I was using 4.8.0 before, now upgraded to a self-compiled 4.8.3 with default build parameters on an up-to-date centos 7.5 with disabled SELinux and bind9 as DNS backend with samba_dlz.
The log output at log level = 10 is as follows:
Jul 17 14:49:20 hostname samba[4998]: [2018/07/17 14:49:20.587655,
2018 Jan 17
4
effects: error when original data frame is missing
Hello, everyody,
when asking, e.g., Effect() to compute the effects of a fitted,
e.g., linear model after having deleted the data frame from the
workspace for which the model was obtained an error is reported:
> myair <- airquality
> fm <- lm(Ozone ~ Temp, data = myair)
> rm(myair)
> Effect("Temp", fm)
Error in eval(model$call$data, envir) : object 'myair'
2017 Sep 17
0
Confusing lstat() performance
I found the reason now, at least for this set of lstat()s I was looking at.
bup first does all getdents(), obtaining all file names in the
directory, and then stat()s them.
Apparently this destroys some of gluster's caching, making stat()s ~100x
slower.
What caching could this be, and how could I convince gluster to serve
these stat()s as fast as if a getdents() had been done just before
2011 Oct 11
6
[Bug 1942] New: mounting home directory with sshfs -o reconnect requires patch for ssh
https://bugzilla.mindrot.org/show_bug.cgi?id=1942
Bug #: 1942
Summary: mounting home directory with sshfs -o reconnect
requires patch for ssh
Classification: Unclassified
Product: Portable OpenSSH
Version: 5.8p1
Platform: All
OS/Version: Linux
Status: NEW
Severity: enhancement
2012 May 14
1
Plot
Hello,
I am trying to make a plot of the rates of an enzyme against three different protein concentrations (there are 45 rates in total and split up into 3 groups of 15, each receiving one of the 3 protein concentrations). When I enter the following code I instead get 3 separate boxplots for each of the three different protein concentrations ...
plot(rate ~ ferm, data=LDH, col=LDH$rate,
2008 Feb 08
1
xspline(..., draw=FALSE) fails if there is no open device (PR#10727)
Full_Name: Jari Oksanen
Version: 2.6.2 RC (2008-02-07 r44369)
OS: Linux
Submission from: (NULL) (130.231.102.145)
Even if function xspline() is called with argument draw=FALSE, it requires a
graphics device (that it won't use since it was draw=FALSE). I run into this
because I intended to use xspline within a function (that does not yet draw:
there is plot method for that), and the function
2006 Dec 22
6
Re: Difference between ZFS and UFS with one LUN froma SAN
This may not be the answer you''re looking for, but I don''t know if it''s
something you''ve thought of. If you''re pulling a LUN from an expensive
array, with multiple HBA''s in the system, why not run mpxio? If you ARE
running mpxio, there shouldn''t be an issue with a path dropping. I have
the setup above in my test lab and pull cables
2015 Aug 12
2
Error
On 12/08/15 15:54, Reindl Harald wrote:
>
> Am 12.08.2015 um 16:48 schrieb Rowland Penny:
>> On 12/08/15 15:44, sandy.napoles at eccmg.cupet.cu wrote:
>>> OK, there could be several things going wrong here:
>>> Do you have /usr/local/samba/bin and /usr/local/samba/sbin at the
>>> start of your PATH ?
>>> -----> Yes I have both, in
2006 Sep 11
1
error in rsync protocol data stream (code 12) at io.c(463) on HP-UX 11.23
Hello,
We discovered a slight problem with rsync 2.6.8 on HP-UX 11.23 on Itanium2.
When trying to get a directory listing via:
# oracle@DEV1[]:/~ > rsync dev1::deploy
drwxr-xr-x 96 2006/09/06 12:57:36 .
drwxrwxrwx 96 2006/09/11 15:35:33 test
# ...
it works flawlessly, but when trying to get a subdirectory we get the
following error:
# DEV1:/etc# rsync dev1::deploy/test
#
2011 Aug 16
1
deSolve, extracting variable values from inside ode function
I'm just getting to grips with using ode function and have used the
examples and vignettes to produce a small model of a one-pool,
michaelis-menten, enzyme kinetic reaction. The rate of flux of substrate
into pool A is constant (fluxoa) however the rate of flux out of pool A
is controlled by the HMM equation (v = Vmax/ ( 1 + (Km / Concentration A
)) ). This function works fine and
2018 Jan 17
0
effects & lme4: error since original data frame not found WASeffects: error when original data frame is missing
Hi, again,
I have to modify my query since my first (too simple)
example doesn't reflect my actual problem. Second try:
When asking Effect() inside a function to compute an effect
of an lmer-fit which uses a data frame local to the body of
the function, as in the following example (simplifying my
actual application), I get the "Error in is.data.frame(data) :
object 'X' not
2013 Nov 21
2
[LLVMdev] vmkit2 core dump after building mmtk
Thanks for your help so far Gaƫl, but I ran into more trouble. I
installed the JDK on my system and the messages indicated the JVM
version needs to be 1.6. Did you intend to link me to Java 7?
LD_LIBRARY_PATH=/usr/lib/jvm/jdk1.7.0_25/jre/lib/amd64/server/:/usr/lib/jvm/jdk1.7.0_25/jre/:/usr/lib/jvm/jdk1.7.0_25/jre/lib/amd64/
Buildfile: /path/to/code/vmkit/mmtk/java/build.xml
main:
[javac]