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September 2019 Blog Posts (84)

Misuses of Statistics: Examples and Solutions

This resource is part of a series on specific topics related to data science: regression, clustering, neural networks, deep learning, Hadoop, decision trees, ensembles, correlation, outliers, regression Python, R, Tensorflow, SVM, data reduction, feature selection, experimental design, time series, cross-validation, model fitting, dataviz, and many more. To keep receiving these articles, …


Added by Vincent Granville on September 1, 2019 at 9:30am — No Comments

Weekly Digest, September 2

Monday newsletter published by Data Science Central. Previous editions can be found here. The contribution flagged with a + is our selection for the picture of the week. To subscribe, follow this link.  

Featured Resources and Technical…


Added by Vincent Granville on September 1, 2019 at 6:30am — No Comments

Loop-Runtime Comparison R, RCPP, Python

The positive reactions on my last post: “Different kinds of loops in R” lead me to compare some different versions of loops in R, RCPP (C++ integration of R). To see a bigger picture, I apply the Python for-loop additionally. The comparison focuses on the runtime for non-costly tasks with different numbers of iterations. For comparison purpose I create vectors in the form of (R syntax):

Vector <- 1:k

k = (1.000, 100.000, 1.000.000)


The task is to…


Added by Frank Raulf on September 1, 2019 at 4:30am — 1 Comment

Are Your Dashboards and Reports Ignored?

You’ve spent countless hours preparing a great executive dashboard for your organization. After a few months, you realize that no one is using it.

While you don’t receive any complaints about the dashboard, you also don’t receive any praise. It may feel like a literal gut punch when you went to great efforts to deliver what the organization said was needed. 

The First Sign of a Problem

You should be concerned when no one is complaining or…


Added by Tricia Aanderud on September 1, 2019 at 3:00am — No Comments

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