This report documents the process of debugging a problem with the recording and replaying of R plots from one R session to another. The purpose of this report is to record the source of the problem, to record the solution … Continue reading → [Read more...]

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[social4i size=”large” align=”float-right”] Statistics.com is an online learning website with 100+ courses in statistics, analytics, data mining, [Read more...]

I was wondering recently if I could use Oracle R Enterprise (ORE) to query Big Data SQL tables (i.e. Oracle Database external tables based on HDFS or Hive data), since I have never seen such a combination mentioned in the relevant Oracle documentation and white papers. I am happy ... [Read more...]

A couple of months ago, the first version of benchmarkme was released. Around 140 machines have now been benchmarked. From the fastest (an Apple i7) which ran the tests in around 10 seconds, to the slowest (an Atom(TM) CPU N450 @ 1.66GHz) which took 420 seconds! Other interesting statistics: Around 6% of people ran ... [Read more...]

    We are pleased to announce that early bird tickets for the EARL (Effective Application of the R Language) Conference have been released and are now available to purchase.  The conference will be held on the 13th-15th September 2016 at … Continue reading → [Read more...]

If you missed the recent webinar presented by Derek Norton, Using Microsoft R Server to Address Scalability Issues in R, you can now catch up with the replay below. In the webinar, Derek compares Microsoft R Open and Microsoft R Server, and demonstrates using Microsoft R Server to model a 40... [Read more...]

Many developers, especially the Java developers are quite comfortable using eclipse for development. There is a very useful and powerful plugin called StatET that can enable eclipse to work as in IDE for R. Lets first look at how to install it on Linux(Ubuntu). The plugin is available from ... [Read more...]

Are you the type of person that likes your code to be identically indented? for spacing to be consistent throughout your script, everything to be clear and aligned, read easily and just look nice? Well, I am. Often I get tremendously untidy code from o... [Read more...]

Questo breve articolo punta pertanto a proporre una lettura statistica dei 67 messaggi di fine anno che dal 1949 ad oggi sono stati proposti dai vari Presidenti della Repubblica succedutisi al Quirinale. ...PresidenteAuguri      Totale Parole      Parole per Messaggio      Parole per Frase      Parole per MinutoLuigi Einaudi6121020242116Giovanni Gronchi7582183246139Antonio Segni2179789849126Giuseppe Saragat78471121032132Giovanni ... [Read more...]

Following Romain François's example, I spent last week playing with the definition of the R grammar. I focused on four changes that I think would improve existing R idioms: creating lists with bare square brackets; a compact lambda notation; labelled blocks of code; and of course implementing natively the ... [Read more...]

Following Romain François's example, I spent last week playing with the definition of the R grammar. I focused on four changes that I think would improve existing R idioms: creating lists with bare square brackets; a compact lambda notation; labelled blocks of code; and of course implementing natively the ... [Read more...]

In the exercises below we cover the basics of R object modes. Understanding mode is important, because mode is a very basic property of any R object. Practically, you’ll use the mode property often to convert e.g. a character vector to a numeric vector or vice versa. Before ... [Read more...]

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In research, especially in medical research, we describe characteristics of our study populations through Table 1. The Table 1 contain information about the mean for continue/scale variable, and proportion for categorical variable. For example: we say that the mean of systolic blood pressure in our study population is 145 mmHg, or 30% of ... [Read more...]

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We were doing some exploratory data analysis on some attacker data at work and one of the things I was interested is what were “working hours” by country. Now, I don’t put a great deal of faith in the precision of geolocated IP addresses since every geolocation database that ... [Read more...]

Today I had the pleasure of speaking over the phone with someone from the Census Bureau. This was my first time speaking with someone who works there, and it was fun to move from thinking of the Census Bureau as “a government agency” to “a place where someone I know ... [Read more...]