I had to ingest some medium to high volume data from official French government sites, and would like to share my return on experience. Data ingestion here is solved globally, without any other consideration than maximum reduced time for implement...

[1] Last post ‘Still hand-crafting your Rdoc files?’ introduced package wyz.code.rdoc to produce R documentation file in a possibly fully automated way. Let’s see today, which production strategy will offer you the most powerful and productiv...

[1] If your still hand-crafting your R documentation files, then you face a time consuming activity. Trying to foresee time needed to get a documentation to an expected quality level stays a real challenge. The generic process to create an R docum...

Offensive programming ecosystem has been upgraded. You may now use new versions of packages according to following table package name (available on CRAN) recommanded version wyz.code.offensiveProgramming ...

This is the third post on offensive programming, dedicated to using offensive programming (OP). You may refer to easy introduction to offensive programming to acquire some basic knowledge about offensive programming, and to discover offensive progra...

Many of us are using R in a way or another and we all have to deal with R intrinsics and sometimes R weirdness. Standard R way Base package, append function Let’s look at a first example, using the very useful append function from base R. The f...

Package wyz.code.offensiveProgramming version 1.1.12 is available on CRAN. If you are interested in reducing time and efforts to implement and debug R code, to generate R documentation, to generate test code, then you may consider using this package...

When submitting one R package to CRAN, you must ensure that no errors, no warnings and no notes appears in the check process, enforcing use of ’–as.cran’ option. devtools::check(document = FALSE, args = c('--as-cran')) Sometimes a note or a...

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...

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...

Metaprogrammation impact

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.

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...

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 from 2 to 11 resolution graph First, let’s proceed ...

Proof of Collatz sequence convergence.