similar to: Data frame operations getting slower when accessed by index

I'd like to fit linear models on very large datasets. My data frames are about 2000000 rows x 200 columns of doubles and I am using an 64 bit build of R. I've googled about this extensively and went over the "R Data Import/Export" guide. My primary issue is although my data represented in ascii form is 4Gb in size (therefore much smaller considered in binary), R consumes about

When I combine separate vectors into one list, there are new names created. I'd like to change them to something more meaningful. Here are two examples using data(zelazo) from library(ISwR): > library(ISwR) > data(zelazo) > attach(zelazo) > zelazo $active [1] 9.00 9.50 9.75 10.00 13.00 9.50 $passive [1] 11.00 10.00 10.00 11.75 10.50 15.00 $none [1] 11.50 12.00 9.00

Hi, Is cipher "3des-ctr" supported by openssh? It is not mentioned in the list of supported ciphers in the man page of ssh_config: Thanks, Sunil Ciphers Specifies the ciphers allowed for protocol version 2 in order of preference. Multiple ciphers must be comma-separated. The supported ciphers are ''3des-cbc'', ''aes128-cbc'',

I have been using lme from nlme to do a 3-way anova with all the effects treated as random. I was wondering if someone could direct me to an example of how to do this using lmer from lme4. I have 3 main effects, tim, trt, ctr, and all the interaction effects tim*trt*ctr. The response variable is ge. Here is my lme code: dat <-

On 15.4.2019 3.33, Larry Rosenman via dovecot wrote: > ?72% [ler at thebighonker.lerctr.org:~] $ doveadm search mailbox > lists/freebsd/ports-commiters? body 'sysutils' > [ler at thebighonker.lerctr.org:~] $ doveadm fts rescan > [ler at thebighonker.lerctr.org:~] $ doveadm index -q > lists/freebsd/ports-commiters > ?64% [ler at thebighonker.lerctr.org:~] $ tail -f

I'm attempting the heruclean task of teaching myself Introductory Statistics and R at the same time. I'm working through Peter Dalgaard's Introductory Statistics with R, but don't understand why the answer to one of the exercises works. I'm hoping someone will have the patience to explain the answer to me, both in the statistics and R areas. Exercise 6.1 says: The zelazo data

If I have data: dat<-data.frame(a=rnorm(20),b=rnorm(20),c=rnorm(20),d=rnorm(20),site=rep(letters[5:8],each=5)) And want to plot like this: ctr<-1 for(i in c('a','b','c','d')){ png(file=paste('/tmp/plot_number_',ctr,'.png',sep=''),height=8.5, width=11,units='in',pointsize=9,res=300) print(ggplot(dat[,names(dat) %in%

When testing chacha20-poly1305, I noticed that aes-gcm is significantly faster than aes-ctr or aes-cbs with umac. Even on systems w/o aes-ni or other recent instruction set additions. And there seems to be consensus in the crypto community that AEAD ciphers are the way forward. As such, it promoting the AEAD ciphers to the head of the preference list looks like a good idea. That would mean

Thanks Darren, will check on your response. I am attaching sshd, ssh logs with debug flags. Please see if it gives any hint: when I press ^C in ssh session, no log gets printed in both server/client side. Best Regards, On Wed, Jan 18, 2017 at 3:09 AM, Darren Tucker <dtucker at zip.com.au> wrote: > On Wed, Jan 18, 2017 at 5:10 AM, Sudarshan Soma <sudarshan12s at gmail.com>

Hi, The 20130110 snapshot fails to build against OpenSSL 0.9.8 and 1.0.0 with the following error: gcc -g -O2 -Wall -Wpointer-arith -Wuninitialized -Wsign-compare -Wformat-security -Wno-pointer-sign -fno-strict-aliasing -D_FORTIFY_SOURCE=2 -fno-builtin-memset -fstack-protector-all -I. -I. -DSSHDIR=\"/tmp/foo/etc\" -D_PATH_SSH_PROGRAM=\"/tmp/foo/bin/ssh\"

Hello, I got some weird problem with public key authentication using rsa key pair. Let me first of all explain my setup. 1) I got two Solaris 8 x86 boxes uname -a SunOS 5.8 Generic_117351-24 i86pc i386 i86pc <kdc: 192.168.10.11> <---> <module: 192.168.10.10> 2) They're running absolutely identical openssh installations I'm using pkgsrc, so I've builded all

Hi OpenSSH team, I find a url http://www.gossamer-threads.com/lists/openssh/dev/42808?do=post_view_threaded#42808, which provides unofficial patch for FIPS Capable OpenSSH. I try it and it seems working for some cases. (BTW, I also find that aes128-ctr, aes192-ctr and aes256-ctr ciphers can't work in FIPS mode properly. The fips mode sshd debug info is as following.

Hi List, Happy New Years and I was hoping to get some help on an ssh issue that I am having. For some reason I am unable to scp to hosts on this network using RSA keys. Here is what I am doing/what is going on; scp the public key to remote host [amandabackup at VIRTCENT18 ~]$ scp ~/.ssh/id_rsa_amdump.pub amandabackup at lb1:~ amandabackup at lb1's password: id_rsa_amdump.pub

Dear R users, I'm trying to cluster 30 gene chips using principal component analysis in package mva.prcomp. Each chip is a point with 1,000 dimensions. PCA is probably just one of several methods to cluster the 30 chips. However, I don't know how to run prcomp, and I don't know how to interpret it's output. If there are 30 data points in 1,000 dimensions each, do I have to

Hello: I have a Windows 2003 Server that is causing rpcclient to SEGV via the following command: $ rpcclient -U Administrator%foobar -c 'netshareenum 502' <server> ... type: 0x6269: SEC_DESC_OWNER_DEFAULTED SEC_DESC_DACL_DEFAULTED SEC_DESC_SACL_DEFAULTED SEC_DESC_DACL_TRUSTED SEC_DESC_SACL_AUTO_INHERIT_REQ SEC_DESC_SACL_PROTECTED SEC_DESC_RM_CONTROL_VALID SACL Segmentation fault

Trying to connect from Fedora 21 to CentOS 6.6, OpenSSH on both ends. Connection is via a VPN. Initially the connection seems good, but OpenSSH stalls at debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP. Software version on servers: openssh-server-5.3p1-104.el6_6.1.x86_64 openssh-5.3p1-104.el6_6.1.x86_64 Software version on client: openssh-6.6.1p1-11.1.fc21.x86_64 also duplicated problem using

On 15/04/2019 08:09, Larry Rosenman via dovecot wrote: > Note the hits after the fts rescan/index. > > Get Outlook for Android <https://aka.ms/ghei36> > > ------------------------------------------------------------------------ > *From:* Aki Tuomi <aki.tuomi at open-xchange.com> > *Sent:* Monday, April 15, 2019 12:55:07 AM > *To:* Larry Rosenman; John Fawcett

OpenSSH Security Advisory: cbc.adv Regarding the "Plaintext Recovery Attack Against SSH" reported as CPNI-957037[1]: The OpenSSH team has been made aware of an attack against the SSH protocol version 2 by researchers at the University of London. Unfortunately, due to the report lacking any detailed technical description of the attack and CPNI's unwillingness to share necessary

Hi , I want to be able to filter out results using a string. I'm running an automated script that reads a list of filters I get from an external source and applys them to my data frame consecutively. For example I want to get : data[protocol==1], data[protocol==2] ... If I define filter1 <- "protocol==1" (as a string) filter2 <- "protocol==2" ... How can I use

Hi. There should be a checklist of everything that can go wrong with making an ssh connection. Here's one entry for the list, which I didn't know before, and * I couldn't see the problem from the -ddd and -vvv output, and * there were no /var/log/* file entries to give hints. Here's what I did sudo kill <pid-of-sshd> /usr/sbin/sshd No good. Usually I did kill