“…The CoDa tradition started with Aitchison's seminal work (1982Aitchison's seminal work ( , 1986 on chemical and geological compositions where only the proportion of each part or component is of interest, since absolute amounts are irrelevant and only tell about the size of the chemical or soil sample (e.g., Buccianti et al, 2006). Nowadays, CoDa spans almost all the hard sciences and has started to be used in several fields of the social sciences, such as education (Batista-Foguet et al, 2015), economics (Fry, 2011), marketing (Vives-mestres et al, 2016), accounting (Linares-Mustarós et al, 2018), tourism Coenders, 2016), values (van Eijnatten et al, 2015), social networks (Kogovšek et al, 2013), time use (Martín-Fernández et al, 2015a) and election studies (Egozcue and Pawlowsky-Glahn, 2011;Liscano Fierro and Ortiz Rico, 2017). Content analysis in the study of the media and media groups and the analysis of AS, which resides in the communication of these media, pose similar problems in all respects as those encountered in chemical and geological analyses.…”