Venga now - the commands I always forget
Wednesday, 25 January 2012
Inverting screen colours in linux
xcalib -invert -alter
You can set this command to a keyboard shortcut.
Very useful for reading in the screen without bleeding eyes.
Monday, 23 January 2012
How to install rWeka and rJava in fedora (15)
Once again a problem of dev libraries.
First install r-java and r-java-dev
$ yum -y install r-java r-java-dev
Procced to install RWeka
$ sudo R CMD javareconf
R$ install.packages('RWeka')
voilá
Note: Sometimes it happens that R is not able to load properly the java libraries. In order to avoid this yo need to re-run as root R CMD javareconf [ see:
http://rwiki.sciviews.org/doku.php?id=packages:cran:rjava
]
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