Programming Leftovers
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Hackaday ☛ Testing Your C Knowledge With This One Simple Quiz
One of the most exciting aspects of the C programming language — as effectively high-level assembly — is that although it’s a bit friendlier for the developer, it also adds a lot of required know-how on account of its portability across platforms and architectures. This know-how is what [Oleksandr Kaleniuk] manages to wonderfully illustrate with a simple 5-question, multiple-choice quiz on what the return value is of the provided function snippets of C code. How well do you know C?
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Linux Links ☛ 12 Best Free and Open Source Graphical Git Clients
Git is one of a number of open source revision control systems available for Linux. We recommend the finest GUI-based tools.
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R
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Dirk Eddelbuettel ☛ Dirk Eddelbuettel: RcppAnnoy 0.0.22 on CRAN: Maintenance
A very minor maintenance release, now at version 0.0.22, of RcppAnnoy has arrived on CRAN.
RcppAnnoy is the Rcpp-based R integration of the nifty Annoy library by Erik Bernhardsson. Annoy is a small and lightweight C++ template header library for very fast approximate nearest neighbours—originally developed to drive the Spotify music discovery algorithm. It had all the buzzwords already a decade ago: it is one of the algorithms behind (drum roll …) vector search as it finds approximate matches very quickly and also allows to persist the data.
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Rlang ☛ Actual pixel sizes of unprojected raster maps
It is well known, though often dismissed, that the areas of spatial units (cells, pixels) based on unprojected coordinates (longitude-latitude degrees, arc-minutes or arc-seconds) are wildly inconsistent across the globe.
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Rlang ☛ Exploring Data Lengths with R’s lengths() Function
Introduction
Hey folks! Today, we’re diving into the world of R programming, and our star of the show is the lengths() function.
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