[R-pkgs] hsdar is back on CRAN

[Lukas Lehnert]

hsdar is back on CRAN

We are very happy to announce that a new version of the hsdar-package 
(hyperspectral data analysis in R) is available on CRAN. 

The introductory vignette is available here: 
https://cran.r-project.org/web/packages/hsdar/vignettes/Hsdar-intro.pdf

The main class "Speclib" has been changed in that the additional information 
is now stored in the SI slot (function "SI" replaced "attribute" for 
update/access). This change was used to restructure how the supplementary data 
is internally stored and allows the user to use e.g. raster images as source 
of additional information (which can be of advantage if e.g. terrain is 
suspected to play a role for hyperspectral classification/regression).  
Additionally, the Speclib-class has now methods compatible with the 
iteratively reading/writing functions of the raster-package (writeStart-, 
writeValues-, writeStop-methods for Speclib class are implemented).

Besides these technical changes, the new version of PROSPECT (version D) is 
implemented.

Cheers

Lukas Lehnert
Hanna Meyer
Jörg Bendix