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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: January 2010
Do not forget…
Sometimes I need to watch this video, it helps me to not forget… QUESTO SUCCEDE MENTRE NOI SIAMO ACCECATI DALL’AVIDITA’ E DAL CONSUMISMO… E NOI FACCIAMO poco o NULLA PER CAMBIARE… Questo video e’ la mia bussola…
A new blog for me!
My blog now lives at redaelli.org: new posts will be published automatically also in my facebook and twitter profiles. But I’m looking also at blogger: I’m playing with http://redaellicarate.blogspot.com/
Do NOT BUY any DVB USB devices with TRIDENT chipsets
Please do NOT buy any DVB USB devices with TRIDENT chipsets like Freecom DVB-T & Analog TV USB STICK (USB Id 14aa:0620), Moka Hybrid TV receiver MK-DVBT-DUAL (USB Id 14aa:0620), LifeView LR535 … a PCIe Mini Card (USB Id 10fd:0535), … Continue reading