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Recent Comments
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RLangTip
Get an overview of documentation for an installed package: help(package="<package-name>") #rstats
Common style for comments is # on a line of #rstats code, ## within functions, and ### at the top level of scripts. ESS indents accordingly
A single index can be used to select from a matrix. For example, X[row(X)==col(X)] is the same as diag(X) #rstats http://t.co/EY1uMfny
Robust function writing tip: use seq_len(N) instead of 1:N (it handles the N<1 case appropriately): http://t.co/mZdDZCJE #rstats
Train support vector machines in R with the "svm" function from the e1071 package: http://t.co/OM5duD90 #rstats
A handy alias (via @hadleywickham) for #rstats to prevent saving or loading workspaces: R --no-save --no-restore-data --quiet
Filter list elems that match a condition: id<-sapply(mylist, function(e) test(e)); mylist[id] # Replace "test" with any T/F expr #rstats
The # character introduces comments in R. Everything after the # character to end-of-line is ignored by the interpreter. #rstats
The "break" statement immediately exits from a "for" or "while" loop: http://t.co/O4xamQqt #rstats
To debug warnings, options(warn=2) converts warnings into errors #rstats
Monthly Archives: October 2008
Calendario 2009
Alro che calendario Pirelli!! Ecco il Calendario 2009 di Binario per l’Africa con le foto scatatte in Kenia l’agostro scorso. Here is the African Calendar 2009!
Using Apache Camel with Ibatis
This is a quick tutorial about the usage of the very powerful Integration tool Apache Camel with Apache Ibatis. Many thanks to Apache Camel forums and Claus Ibsen. REQUIREMENTS I used Java version 1.5.0_16 Apache Maven version 2.0.9 A database … Continue reading
New Facebook group Binario per l'Africa
Please, join the Facebook group! Unisciti al nuovo gruppo di Facebook di Binario per l’Africa Please, join the Facebook group! Unisciti al nuovo gruppo di Facebook di Binario per l’Africa Please, join the Facebook group! Unisciti al nuovo gruppo di … Continue reading