Displaying 20 results from an estimated 2000 matches similar to: "indexing a vector"
2009 May 06
4
tapply changing order of factor levels?
Hi,
Does tapply change the order when applied on a factor? Below is the code I
tried.
> mylevels<-c("IN0020020155","IN0019800021","IN0020020064")
>
2003 Oct 28
2
R performance on Unix
Hi
I'm observing a huge difference in the performance speed of R on Windows and
Unix, even though I know that my Unix machine is much more powerful than my
Win machine.
In particular, any character processing task is very time consuming on Unix.
strptime(x,"%H:%M:%S") is about 10 times slower on Unix for vector x of the
length of ~ 500. read.table() also is very slow. is there
2007 Jun 08
1
How to make a table of a desired dimension
Hi ComRades,
I want to make a matrix of frequencies from vectors of a continuous
variable spanning different values. For example this code
x<-c(runif(100,10,40),runif(100,43,55))
y<-c(runif(100,7,35),runif(100,37,50))
z<-c(runif(100,10,42),runif(100,45,52))
a<-table(ceiling(x))
b<-table(ceiling(y))
c<-table(ceiling(z))
a
b
c
will give me three tables that start and end at
2014 Jul 25
3
POWERCOM HID USB controller update
Dear Sirs,
First of all I would like to thank you for support PCM product in your project.
Kindly please be informed that POWERCOM launch new USB-controller with productID 0X04. Updated USB-controller compatible with previous version which supported by your usbhid-ups driver. There is added some command and changed idProduct. Vendor ID stay the same 0X0d9f without changes.
Detailed information
2009 Oct 30
6
Powercom support and sponsorship
Alex and the list,
Alexey Morozov (Powercom sales manager for Russia) has contacted me to
propose demo units and information on the new Powercom protocol.
This is preferably for a Russian team member...
Anyone up?
cheers,
Arnaud
--
Linux / Unix Expert R&D - Eaton - http://www.eaton.com/mgeops
Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/
Debian Developer -
2009 Oct 30
6
Powercom support and sponsorship
Alex and the list,
Alexey Morozov (Powercom sales manager for Russia) has contacted me to
propose demo units and information on the new Powercom protocol.
This is preferably for a Russian team member...
Anyone up?
cheers,
Arnaud
--
Linux / Unix Expert R&D - Eaton - http://www.eaton.com/mgeops
Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/
Debian Developer -
2010 Sep 17
15
Fwd: Unable to Get Sony IC Recorder (Digital Voice Editor 3.3.01) to Work with 32-bit Wine (Windows Emulator) in 64-bit Fedora 11 x86_64 Linux
Dear Alexander Morozov,
From the output of the command "ps -ef | grep wine", we can observe
that the native Windows USB driver ICDUSB2.sys for the Sony IC Recorder
gets loaded with winedevice.exe.
enming 18814 18781 0 16:15 ? 00:00:00
C:\windows\system32\winedevice.exe ICDUSB2
However, Digital Voice Editor 3 (under Wine) simply would not detect the
Sony IC Recorder. The
2014 Sep 11
0
POWERCOM HID USB controller update
Dear Sirs,
We appreciate your support and cooperation.
Can you please kindly add our new USB-controller with productID 0X04 to NUT compatible list. Updated USB-controller compatible with previous version which is supported by your usbhid-ups driver.
Detailed information regarding new POWERCOM communication protocol you could download via link
2011 Nov 04
2
Efficiency of factor objects
R factors are the natural way to represent factors -- and should be
efficient since they use small integers. But in fact, for many (but
not all) operations, R factors are considerably slower than integers,
or even character strings. This appears to be because whenever a
factor vector is subsetted, the entire levels vector is copied. For
example:
> i1 <- sample(1e4,1e6,replace=T)
> c1
2001 Feb 20
1
Recent wines on RH7/kernel-2.4.0
I'm not running RedHat(running Debian rather), but I've run Wine under
2.4.0, 2.4.1 and 2.4.2-pre3 kernels without any trouble.
Chris
In article <91ev5s$30v1$1@news.itfs.nsk.su>, "Alexey Morozov"
<morozov@novosoft.ru> wrote:
> Did anyone manage to run recent wine on a RH7 w/ the 2.4.0-testXX
> kernel? I tried (both 20001202 and 20001215) and found that
2003 Nov 25
1
Time series indexing/subsetting
R-listers:
I may be asking too much from R, but is there a way to use time indexing
on a time series object. For instance:
> tsobject <- ts(1:12, start =1999, freq = 4)
> tsobject
Qtr1 Qtr2 Qtr3 Qtr4
1999 1 2 3 4
2000 5 6 7 8
2001 9 10 11 12
> tsobject[1999,Qtr4]
Error in NextMethod("[") : Object "Qtr4" not found
I would
2014 Nov 12
2
POWERCOM HID USB controller update
On Nov 11, 2014, at 3:30 PM, Maksym Bodaniuk <max.bodaniuk at gmail.com> wrote:
> Dear Charles and Artem,
>
> I've recently bought a new PowerCom Imperial IMD825-AP LCD which identifies itself as 0x0d9f:0x0004.
> At first glance it seems that usbhid-ups driver works fine. But when I tried to shutdown UPS via DelayBeforeShutdown it started double beeping every couple seconds
2003 Mar 08
3
where is kurtosis??
Dear friends,
I try to get started with R and can’t estimate kurtosis of a random sample by using one command. I have installed R 1.6.2. Please help.
Max
---------------------------------
ur needs
[[alternate HTML version deleted]]
2003 Dec 10
2
OT: BibTex year-only citation in text?
Sorry for the off-topic question, but I know there are some talented
LaTeX users out there. Which bibliography style gives only the year in
text citations (e.g "for further details, see Anderson (1992)" )?
Thanks
Jason
--
Indigo Industrial Controls Ltd.
http://www.indigoindustrial.co.nz
64-21-343-545
jasont at indigoindustrial.co.nz
2003 Oct 21
5
run R under linux
Dear all,
Our department uses the linux system and we are not allowed to submit job
directly. We must make a batch to submit through "qmon".
so, I make a foo.sh file, which only contains one line: nohup R --vanilla <
foo.txt > foo.results
foo is all my codes. It is a simulation of 200 times. I set the seed at the
beginning. It is to estimate the success probability, which is
2003 Nov 01
2
Question about the high dimensional density estimation
Hi,
I found that the R package "KernSmooth" can deal with only 1D and 2D data. But now I have a collection of 4-dimensional data (x1,x2,x3,x4) and would like to estimate the "mode" of the underlying density. What can I do about it ?
Thanks a lot.
--
Ying-Chao Hung
Assistant Professor
Graduate Institute of Statistics
National Central University
Chung-Li, Taiwan
TEL:
2014 Sep 11
2
POWERCOM HID USB controller update
On Sep 11, 2014, at 2:50 AM, Khokhlov Artem <khokhlov.a at pcm.ru> wrote:
> Can you please kindly add our new USB-controller with productID 0X04 to NUT compatible list. Updated USB-controller compatible with previous version which is supported by your usbhid-ups driver.
Confused. This commit was added in 2011:
2003 Mar 26
3
hist overlay...
thanks to all for the 2d scatter plot.
i have one more.
how do i plot 'hist(y1, col="red") and hist(y2,col="blue") in the same window?
thanks again.
2010 Mar 04
1
mysqlWriteTable . error in your SQL syntax?
Hi,
Can somebody advice on weird mysqlWriteTable bug.
> mysqlWriteTable(conn, 'comparison',design2, row.names = F, overwrite=T)
Error in mysqlExecStatement(conn, statement, ...) :
RS-DBI driver: (could not run statement: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '"condition"
2002 Oct 21
2
overlaying plots
Dear R-gurus:
How do I overlay 2 plots in the same frame in R?
Or, if I have a histogram, and I want to plot a function in the same frame -
how do I do it?
Thank you very much,
Vlad
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