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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
Tag Archives: OpenSource
The 10 Most Important Open Source Projects of 2011
Hadoop Git Cassandra LibreOffice OpenStack Jquery Nginx Node.js Puppet See original post at linux.com
SAP OpenSource NOSQL MongoDB
MongoDB Selected as the Core Content Management Component of SAP’s Platform-as-a-Service (PaaS) Offering “MongoDB’s Flexibility and Scalability Will Enable SAP to Scale Its Content Management Service on Its PaaS to Meet Customer Demand While Managing Data From Different Applications” Read … Continue reading
Oracle Opensource NoSQL Hadoop R
Oracle’s comprehensive big data strategy includes NoSQL, Hadoop, and R analytics “Oracle’s planned distribution of the open-source R statistical environment will be adapted for use on large-scale data within the Oracle database, rather than on desktops and laptops where analysts … Continue reading
Moodle 2.1 released!
“Moodle is a software package for producing Internet-based courses and web sites. It is a global development project designed to support a social constructionist framework of education. Moodle is provided freely as Open Source software (under the GNU Public License).” … Continue reading
Al via [R]innova di Rante sullo Strategico
“[R]innova vuole essere la prima esperienza di programmazione condivisa per la Web Application Strategico, un progetto open source per l’analisi di serie storiche. L’obiettivo di questa prima edizione di [R]innova è lo sviluppo del layout grafico dei risultati prodotti da … Continue reading
Strategico 1.0.0 is out
Try the Long Term Prediction Online DEMO with your time series The release 1.0.0 of Strategico is avalable for download! Strategico is a statistical tool for Long Term Prediction over a (huge) set of time series: it automatically finds the … Continue reading
Strategico 0.8
A new release (0.8) for Strategico, a statistical tool for Long Term Prediction and other statistical analysis over Time Series…
Strategico 0.7 was released as opensource!
Strategico is an R engine for massive analysis (like Long Term Prediction) over groups of time series was release as opensource. You can use it for forecasting sales of your products, ..
Esempi di utilizzo dei dati e mappe Istat con R
Trovate su R-Istat alcuni semplici esempi di utilizzo con R dei dati e mappe cartografiche forniti liberamente dall’Istat. In questo post un video e un grafico di esempio.. .