Blog Archives

Multilabel classification with neuralnet package

February 15, 2017
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Multilabel classification with neuralnet package

Some time ago I wrote an article on how to use a simple neural network in R with the neuralnet package to tackle a regression task. A few weeks ago, however, I was asked how to use the neuralnet package for making a multilabel classifier. I wrote a quick script as an example and thought I could write a short...

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7th MilanoR Meeting live on Facebook

October 25, 2016
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You would like to attend the meeting but could not get a ticket? Follow the live event online! The post 7th MilanoR Meeting live on Facebook appeared first on MilanoR.

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Linpe: make sending and receiving data analysis faster and easier

October 4, 2016
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Linpe: make sending and receiving data analysis faster and easier

When performing some kind of analysis in R it is usually common to use data stored in basic formats such as .csv or .Rdata, and then present the analysis using a .Rmd file. Linpe package allows to send a single file instead of two. It has been created by Andrea Spanò, managing partner at Quantide. The post Linpe: make sending...

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Introduction to R: free basic R course on DataCamp in italian

September 19, 2016
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Quantide in partnership with DataCamp , offers an introductory online course to R completely in Italian. The course is free and open to anyone who wishes to participate. There is no requirement, you need only a Pc or a Mac with an Internet access. The post Introduction to R: free basic R course on DataCamp in italian appeared first on...

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Performing Principal Components Regression (PCR) in R

July 20, 2016
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Performing Principal Components Regression (PCR) in R

Principal components regression (PCR) is a regression method based on Principal Component Analysis: discover how to perform this Data Mining technique in R The post Performing Principal Components Regression (PCR) in R appeared first on MilanoR.

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How to sort a list of dataframes

April 13, 2016
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A method to gather data from different sources, sort them and keep a reference to the origin of each subset, plus some efficiency considerations The post How to sort a list of dataframes appeared first on MilanoR.

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Modelling Dependence with Copulas in R

October 18, 2015
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Modelling Dependence with Copulas in R

A copula is a function which couples a multivariate distribution function to its marginal distribution functions, generally called marginals or simply margins. Copulas are great tools for modelling and simulating correlated random variables. The main appeal of copulas is that by using them you can model the correlation structure and the marginals (i.e. the distribution

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Imputing missing data with R; MICE package

October 4, 2015
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Imputing missing data with R; MICE package

Missing data can be a not so trivial problem when analysing a dataset and accounting for it is usually not so straightforward either. If the amount of missing data is very small relatively to the size of the dataset, then leaving out the few samples with missing features may be the best strategy in order

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Fitting a neural network in R; neuralnet package

September 23, 2015
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Fitting a neural network in R; neuralnet package

Neural networks have always been one of the most fascinating machine learning model in my opinion, not only because of the fancy backpropagation algorithm, but also because of their complexity (think of deep learning with many hidden layers) and structure inspired by the brain. Neural networks have not always been popular, partly because they were,

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How to perform a Logistic Regression in R

September 13, 2015
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How to perform a Logistic Regression in R

Logistic regression is a method for fitting a regression curve, y = f(x), when y is a categorical variable. The typical use of this model is predicting y given a set of predictors x. The predictors can be continuous, categorical or a mix of both. The categorical variable y, in general, can assume different values.

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