index

Notes on Code

Here I gather various insights that has helped me in managing computers. Most of them apply to Debian GNU/Linux while other are specific to Ubuntu GNU/Linux. Some notes even cover MS Windows. Apart the notes listed below this site also hosts documentation for Ordino, perl-html-rdbms and Examensregistret.

Long labels in graphs: horizontal graphs of factors

Configuring the index in mutt

pgfSweave troubleshooting

DVD to Zen Vision W

Creating matrix with factors

Multiple variables in one barchart

Using strings as labels in axis with R

Creating micro data for teaching SPSS

Exploring Facebook

DIY: a minimal VPN

LVM over LUKS on a USB stick

backing up with tar

booting non linux stuff with grub

$HOME over NFS with wpa_supplicant

annoying error messages at boot from udev

Towards the paperless office

Encoding video for Ipod Touch 4th generation

LTSP on Debian Squeeze

Logistic regression in R

Vectorizing away loops in R

Johan Söderberg

Name splitting in SQL

openLDAP on a home LAN with Debian Lenny

Convert from PDF to PNG

git for contributors

Email: server side

Digitalising Video Revisited

Faster redraw with Xorg on radeon 9550

Teaching R with LaTeX, Beamer and pgfSweave

Cluster analysis

For and sapply in R

Confidence intervals: when not to use them

mixing text and images in presentations

blacklisting spammer addresses

The Net Is The Computer

Confidence intervals: calculating and ploting them with R

Encrypt unencrypted local mail

Notes on the use of pgfSweave

Vectors and loops in R continued

Beamer and pgfSweave

Functions in BASH

Storing system history in postgresql

postgresql-timeout

apache2-hostname

GRUB-PC Memory allocation failure on old BIOS

postgreSQL and R

Vectorized functions vs loops in R

Installing InfoPage on debian from scratch

Object orientated programming in PERL applied on program managing Mah-Jong games

Encryption of files

BankID with Debian Lenny

sshfs over a proxied ssh tunnel

Finding small distances

Finding hotspots

Trees in postgresql

Using RSync over a proxied ssh tunnel

Three dimensional analysis in R

Representing Time data in R

Visualising GIS data in R

Significant differences between two curves?

Converting plain text files to postscript (e.g. for printing)

scripting or not scripting: xrandr

auto-mounting encrypted usb-sticks

The joy of recursive functions: BASH

R: apply and friends

Using UTF8 with PERL

Recording webb radio (or any streaming audio)

Mounting NFS on a server behind NAT with SSH

Creating good-looking screenshots in PDF

Window manager Ion and screen

XSL, commonly used syntax

Encrypt your incoming mails!

two independent instances of apache-perl

Going unicode, what do you have to change?

Faster remote applications with nomachine

packaging for debian based operating system

embedded-html-in-muse

adding fonts to tetex without root access

emacs as a reader

email: all the tools in the chain

managing SMTP while moving across networks

debiandoc-sgml, docbook-xml, muse

Representing trees in SQL

anti-anti-aliasing fonts used by the UI

syncing email to and from several computers

packages I do not want to be without

peer-to-peer secure remote backup

syncing the set of installed packages on two computers

installing modules from CPAN on Debian

remote controling computers

Reinstalling with apt-get

wget over sshfs

tool chain for post-processing of video

converting pdf-files from color to gray

automatic security updates

mutt, signify and emacsclient

Emacs Muse

Last modified: januari 27, 2012