search for: arithmat

Dear R users, Suppose I have the following data.frame: myID myType myNum1 myNum2 myNum3 a Single 10 11 12 b Single 15 25 35 c Double 22 33 44 d Double 4 6 8 and I want to have new records: myID myType myNum1 myNum2 myNum3 e Single 12.5 18

...;focus" of what flac is meant to be, so I thought I'd discuss them first. Keep in mind that I just subscribed to this list, so if these have already been gone over, just slap me with a tuna :) I believe the reason flac is behind some of the closed source encoders is two fold: Blocking and arithmatic encoding. Blocking: If the data set is local (not streaming) and we have the opportunity to make a coupla passes on the data, its possible to determine non fixed block sizes that fit orders of prediction closely. I'm sure this is no surprise to all of you. Actually coming up with a algo to d...

...++++++++++ fl<-file.choose() fb<-file.info(fl)$size fc<-file(fl) open(fc,open='rb') seek(fc,where=offset) dat<-readBin(fc,'raw',n=(fb-offset),size=1,signed=FALSE) close(fc) ++++++++++++++++++ The decoding performs a combination of a simple bitwise operator and a simple arithmatic operator on every other byte in the raw vector dat. I can code this using a for loop (incrementing the loop counter by 2 every pass) but would rather use vectorized operations for reasons of speed. I can create a function with a for loop and vectorize that function but is there perhaps an easier...

hi! I wanna do some arithmatic operations (addition and substraction -integer operation) inside extensions.conf. Is there a simple way to do this. If I do yy = ${xx} + 1 // say "xx" is initialized to '0' the resulting "yy" will show "0 + 1" Obiviously not the result I ne...

...e encoding process as > its > a lightweight operation (assuming i/o operations are moderately > fast). Miroslav did some experiments with searching for optimum blocksize. from what I remember it made at best a couple percent difference. there was a thread about it here a while back. > Arithmatic encoding. Rice's granularity for encoding is 1 bit. > (obviously) However there are techniques out there to encode > fractions > of bits. Well, you can only encode down to the granularity of 1 bit, > but > by doing a bit of magic, you get the net effect of being able to > re...

Hi, I'm new to R and am trying to implement a state-space model, and do some simulations looking at how well it works. Does anyone have an example I could use as a template? I'm having trouble working out where to start, and haven't been able to find anything similar in the help files or on the web. My example is a surplus production fisheries model, so something similar to that

...nnection closed by x.x.x.x": fatal() -> log() - Correctly handle empty passwords in shadow file. Patch from: "Chris, the Young One" <cky at pobox.com> - Released 1.2.1pre18 19991215 - Integrated patchs from Juergen Keil <jk at tools.de> - Avoid void* pointer arithmatic - Use LDFLAGS correctly - Fix SIGIO error in scp - Simplify status line printing in scp - Added better test for inline functions compiler support from Darren_Hall at progressive.com 19991214 - OpenBSD CVS Changes - [canohost.c] fix get_remote_port() and friends for sshd -...

...[root@wookie root]# [root@wookie root]# shorewall ipcalc 192.168.1.0 255.255.255.0 CIDR=192.168.1.0/24 NETMASK=255.255.255.0 NETWORK=192.168.1.0 BROADCAST=192.168.1.255 [root@wookie root]# Warning: If your shell only supports 32-bit signed arithmatic (ash or dash), then the ipcalc command produces incorrect information for IP addresses 128.0.0.0-1 and for /1 networks. Bash should produce correct information for all valid IP addresses. 3) An ''iprange'' command has been added to /sbin/shorewall. ipran...

...3284073 mat13 0.7665543 -2.6496778 1.8774045 1.45703219 0.9533289 mat14 0.7245671 4.5147054 -1.3445549 0.02866729 -5.3999956 mat15 -0.2173109 -0.1053570 0.3000135 2.88350373 -0.2541405 Can somebody finalize me what is the **rule** for preserving column names and row names for matrix arithmatics? Thanks, [[alternative HTML version deleted]]

Hi, I am running RH 7.2 (professional release 2.4 kernel) I have a ext3 file system which stores large oracle "dump files" over 4GB. We write to it via NFS which is working great, the problem is when we issue a file largefile.dmp from the linux box it fails on anything over 4GB stating that can't stat 'largefile.dmp' (value too large for defined data type). We can do

I own a lot to the folks on r-help list, especially arun who answered every of my question and was never wrong. I am disinclined to once again ask this question, since it is more arithmatic than technical. But, having worked 2 days on it, I realized my brain is just not juicy enough.... Here is the problem. Trust not for freedom to the Franks--- They have a king who buys and sells. - Lord Byron: The Isles of Greece Suppose the French King commands you to buy and sell, an...

All, I'm trying to obtain a one-liner to generate a certain sequence of alternatign numbers. Consider: > unlist(rep(list(c(1,2), c(3,4)), each = 6)) [1] 1 2 1 2 1 2 1 2 1 2 1 2 3 4 3 4 3 4 3 4 3 4 3 4 I'd like the result to be as above but continue until 38. Of course, I could hardcode this going up to c(37,38), but is there a more elegant way? Thanks! David

...Priority: P5 Component: Miscellaneous Assignee: unassigned-bugs at mindrot.org Reporter: yuanjie.huang at windriver.com Created attachment 2866 --> https://bugzilla.mindrot.org/attachment.cgi?id=2866&action=edit test driver of strlcpy to demo the bug. Pointer arithmatic results in implementation defined signed integer type, so that 's - src' in strlcpy and others may trigger signed overflow. When the code is compiled by gcc or clang with -ftrapv option, the overflow would lead to program abort. $ gcc test.c strlcpy.c...

good day here, I'm maintaining a couple of R modules, both on r-forge. tests for these modules are written making use of unit testing, and I make use of the svUnit module, part of SciViews-R. I also make use of examples in the .Rd files. my question regards 'R CMD check pkg'. if an _example_ is not run correctly, I get clear feedback on the command line where I run 'R CMD

...[root@wookie root]# [root@wookie root]# shorewall ipcalc 192.168.1.0 255.255.255.0 CIDR=192.168.1.0/24 NETMASK=255.255.255.0 NETWORK=192.168.1.0 BROADCAST=192.168.1.255 [root@wookie root]# Warning: If your shell only supports 32-bit signed arithmatic (ash or dash), then the ipcalc command produces incorrect information for IP addresses 128.0.0.0-1 and for /1 networks. Bash should produce correct information for all valid IP addresses. 9) An ''iprange'' command has been added to /sbin/shorewall. ipran...

Puppet is failing to restart lighttpd using the Debian init script. Both the default action of stop/start and using the reload action, which basically does the same thing, fail. It seems to be a filehandle problem. Changing the execute method in service.rb to redirect stdout to /dev/null allows the daemon to restart. Otherwise, I end up with a zombie process and according to strace, ruby

Hi, I''m working on a method to manage packages which require a reboot after being installed. I''m curious how other people are handling this problem. Consider the resource: pkg_deploy { "MacOSXUpdCombo10.4.9Intel.dmg": alias => macosx1049 } I''d like to only install the package under if the following conditions are met: - No user is logged into the

Hello, I just attempted to remove both the ypbind and the yp-tools packages using the package parameter with yum. As it turns out, both of these packages depend on each other. Is there a way of forcing package removal and, if there is not, is there a way of making all packages to be removed be collapsed into the same yum command? Either of these solutions would solve the problem with the