Browsing Articles Written by

Nicola Sturaro Sommacal

R Package or Library

R blog By November 28, 2014 Tags: , , 2 Comments

In these days, I was talking about an R package I developed with a colleague. He used several times the word library to refer to the R package. So, I realized that many R users do not know that package and library are not synonymous when referring to R.

The "Writing R Extensions" manual is clear: "A package is not a library", although the same manual admits "this is a persistent mis-usage".


"R for Developers" free web-book: leave your opinion

R blog By October 10, 2014 Tags: , , , , , No Comments

A week ago, my boss at Quantide, Andrea Spanò, published Ramarro. Ramarro is a free interactive web based book (i.e. a web-book) about advanced R programming. The book would help R users to become proficient R developers. Target of the book are both R users and IT specialists that should deals with R users.


My first... plot (.ly): beautiful plots with Plotly

R blog By December 5, 2013 Tags: , , , 2 Comments

Questo articolo può essere letto anche in italiano

Dear R-enthusiastic,
I discovered Plotly some days ago, and I was fascinated by it.

What is Plotly?
Plotly is a service for creating and sharing data visualizations that also offers statistical analysis tools plus a robust API, the ability to graph custom functions and a built-in Python shell. Among its APIs, there is the R one: Plotly interactive visualization can be created directly from R.


Read Excel files from R

R blog By July 22, 2013 Tags: , , , , , , , , , 13 Comments

Many people still save their data into Microsoft Excel files. This is an unhappy choice for many reasons but many was already written about this topic. Furthermore, unfortunately Excel become a de facto standard in many business environment and this routine seems to be difficult to strike out.

Many solutions have been implemented to read Excel files from R: each one has advantages and disadvantages, so an universal solution is not available. Get an overview of all the solutions, allows the choice of the best solution case-by-case.


Operating on files with R: copy and rename

R blog By May 22, 2013 Tags: , , 3 Comments

Nowadays, routinary operations on files, such as renaming or copying, are performed with some mouse clicks. Sometimes, it is useful perform this operations in batch. Linux users perform this operations through the shell. Also Windows users can use the shell, but there are also a lot of utilities that simplify these operations.

Why someone should use R to copy or rename a (lot of) file(s)?