Vmesto Zakladok

directory name

sudo su-
apt-get install nfs-kernel-server portmap
mkdir /var/nfs/
chown nobody:nogroup /var/nfs
nano /etc/exports
/home           12.33.44.555(rw,sync,no_root_squash,no_subtree_check)
/var/nfs        12.33.44.555(rw,sync,no_subtree_check)
exportfs -a
apt-get install nfs-common portmap
mkdir -p /mnt/nfs/home
mkdir -p /mnt/nfs/var/nfs
mount 12.34.56.789:/home /mnt/nfs/home
mount 12.34.56.789:/var/nfs /mnt/nfs/var/nfs
df -h
Filesystem             Size  Used Avail Use% Mounted on
/dev/sda                20G  948M   19G   5% /
udev                   119M  4.0K  119M   1% /dev
tmpfs                   49M  208K   49M   1% /run
none                   5.0M     0  5.0M   0% /run/lock
none                   122M     0  122M   0% /run/shm
12.34.56.789:/home      20G  948M   19G   5% /mnt/nfs/home
12.34.56.789:/var/nfs   20G  948M   19G   5% /mnt/nfs/var/nfs
mount
/dev/sda on / type ext4 (rw,errors=remount-ro,barrier=0) [DOROOT]
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
rpc_pipefs on /run/rpc_pipefs type rpc_pipefs (rw)
12.34.56.789:/home on /mnt/nfs/home type nfs (rw,vers=4,addr= 12.34.56.789,clientaddr=12.33.44.555)
12.34.56.789:/var/nfs on /mnt/nfs/var/nfs type nfs (rw,vers=4,addr=12.34.56.78,clientaddr=12.33.44.555)
touch /mnt/nfs/home/example /mnt/nfs/var/nfs/example
ls /home
ls /var/nfs/
nano /etc/fstab
12.34.56.789:/home  /mnt/nfs/home   nfs      auto,noatime,nolock,bg,nfsvers=3,intr,tcp,actimeo=1800 0 0
12.34.56.789:/var/nfs  /mnt/nfs/var/nfs   nfs     auto,noatime,nolock,bg,nfsvers=3,intr,tcp,actimeo=1800 0 0
man nfs
df -h
mount
cd
sudo umount /directory name
df -h
sudo nano /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX_DEFAULT="text"
sudo update-grub
# Check kernel command-line for inhibitors, unless we are being called
        # manually
        for ARG in $(cat /proc/cmdline); do
            if [ "$ARG" = "text" ]; then
                plymouth quit || :
                stop
                exit 0
            fi
        done
> library(MASS)

> library(help=MASS)

> install.packages("car")

> library(car)

> library(help = car)

> data <- read.csv('data.csv')

% sudo apt-get install r-base

#include <RInside.h> 

int main(int argc, char *argv[]) {
    std::string evalstr = "";  // строка для формирования кода на R
    RInside R(argc, argv);  //окружение
    Rcpp::NumericVector RndVec(1000);  // создаем массив чисел
    for(int i = 0; i < 1000; ++i)
        RndVec(i) = (float)(rand() % 100); // заполняем его
    R["RndVec"] = RndVec; // связываем с массивом в R
    SEXP ans; // результат
    // формируем строку для R:
    // пробуем получить параметры распределения, считая, что это нормальный закон
    evalstr = "library(fitdistrplus) \n \
    out <- fitdist(RndVec, \"norm\", \'mme\')[[1]][[1]]; print(out); out";
    // получили результат
    ans = R.parseEval(evalstr);
    // получили матожидание 
    Rcpp::NumericVector mean(ans);
    std::cout << "mean " << " is " << mean[0] << std::endl;
    evalstr = "out <- fitdist(RndVec, \"norm\", \'mme\')[[1]][[2]]; print(out); out";
    ans = R.parseEval(evalstr);
    // получили ско
    Rcpp::NumericVector sd(ans);
    std::cout << "sd " << " is " << sd[0] << std::endl;
    R["curMean"] = mean[0];
    R["curSd"] = sd[0];
    // выполнили тест
    evalstr = "out <- ks.test(RndVec, \"pnorm\", curMean, curSd)[[2]]; print(out); out";
    ans = R.parseEval(evalstr);
    Rcpp::NumericVector v1(ans);
    // посчитали p.value
    std::cout << "p.value " << " is " << v1[0] << std::endl;
    return 0;
}

August 28, 2014

About NFS (Network File System) Mounts

Setup

Setting Up the NFS Server

Step One—Download the Required Software

Step Two—Export the Shared Directory

Setting Up the NFS Client

Step One—Download the Required Software

Step Two—Mount the Directories

Testing the NFS Mount

Removing the NFS Mount

August 20, 2014

Getting Started With R: Some Resources

On-Line Introductions and Tutorials

Sources of Help

Books

Contents

Installing R

Windows, Mac or Linux

Further information

Starting to learn R: Tutorials on the Web

Other interesting tutorials on the web

Script Editors

Keeping your work

Using and installing packages

Installing additional packages

Setting up project directories

R lessons

R Tip sheets

Exploring more deeply

Exploring much more deeply

Courses in specialized areas

Later

Introductions to R

Materials from John Fox

Downloading R:

Learning R:

Advanced R:

R Programming Tools:

People you can talk to: