Blog Archives

R package submission REX

July 31, 2019
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R package submission REX

I submitted my first R packages a few weeks ago, and I believe it’s worth sharing some return on experience, as the CRAN submission and acceptance processes are much more tricky than they appear at first glance. Package preparation and bundles we...

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R meta programmation

March 17, 2019
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R meta programmation

Metaprogrammation impact

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R meta programmation

March 17, 2019
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R meta programmation

Lately, R meta programmation seems to be in vogue. Very huge promises, encompassing code to produce code, variable indirection naming schemes, and many others marvelous features are now available through the tidyverse. Indeed, very huge promises, are g...

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Real estate value analysis

October 28, 2018
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Real estate value analysis

French government provides from time to time some data sets that are worth the analysis. A friend, gave me this real estate data set, for analysis. Data overview After the download of this file, that weights less than 200kb, many things appear at fir...

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Real estate value analysis

October 28, 2018
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Real estate value analysis

French government provides from time to time some data sets that are worth the analysis. A friend, gave me this real estate data set, for analysis.

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Football FIFA world cup 2018 – global pronostics review

July 8, 2018
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2018 FIFA World cup football is reaching semi finals tonight. It is time to have a review and to draw the lessons learned. As a reminder, know that I am just interested about right pronostic of the end of the game, I mean Win, Draw or Loss, not about the score.

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Articles worth reading June 2018

June 20, 2018
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:skull: marks article you’ll need resilience to what you read, as it may impact you deep :hearts: marks articles easy and positive :man: marks article for men :woman: same for women

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Collatz Sequence – part 6

June 17, 2018
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Collatz Sequence – part 6

Proof of Collatz sequence convergence.

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Collatz Sequence – part 6

June 17, 2018
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Collatz Sequence – part 6

Proof of Collatz sequence convergence. Some reminders first Remember Collatz sequence definition Let’s divide the Collatz sequence into two independent suites, for analysis convenience. First suite ω is for numbers: ωn + 1 = 3 ωn + 1 Second suite η is for numbers: ηn + 1 = ηn / 2 Resolution for numbers...

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Collatz Sequence – part 5

June 15, 2018
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Find previous posts if you haven’t yet read them. first post, second post, third post, and fourth post. Numerical approach for number made of 1 unique digit First important result All the numbers from 1 to 9, provides 1 as final output of Collatz ...

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