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