Mi e’ stata girata per email questa presentazione, non so quanto corrisponda al vero ma e’ di sicuro un interessante spunto di riflessione…
Incenerire inquina e… UCCIDE?
Mi e’ stata girata per email questa presentazione, non so quanto corrisponda al vero ma e’ di sicuro un interessante spunto di riflessione…
Incenerire inquina e… UCCIDE?
Use the RMySQL package to read data from MySQL into R using SQL queries: http://t.co/d2OhEIA3 #rstats
List of 100+ probability distributions (densities, quantiles, simulation) supported in R: http://t.co/UKcR10SQ #rstats
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
