Perl was mentioned in the article, but PDL (Perl Data Language) wasn't. https://metacpan.org/module/PDL https://metacpan.org/module/PDL PDL is the Perl Data L

Perl was mentioned in the article, but PDL (Perl Data Language) wasn't. https://metacpan.org/module/PDL https://metacpan.org/module/PDL PDL is the Perl Data Language, a perl extension that [...] includes fully vectorized, multidimensional array handling, plus several paths for device-independent graphics output. PDL is fast, comparable and often outperforming IDL and MATLAB in real world applications. PDL allows large N-dimensional data sets such as large images, spectra, etc to be stored efficiently and manipulated quickly. For integration with R, there are Statistics::R (https://metacpan.org/module/Statistics::R https://metacpan.org/module/Statistics::R) and Statistics::useR (https://metacpan.org/module/Statistics::useR https://metacpan.org/module/Statistics::useR)