Today I add the same analysis for nine more fields in scientific research (Bio, CompSci, Engin, Math, MatSci, Med, Phys, Psych, Social), with similar results. Out of the total of 4773 journals listed in JCR for these disciplines, only 399 are listed in DOAJ (8.4%).
Within the field of Chemistry, the majority of the 48 JCR/DOAJ journals were not known to me, and often included local/national journals. Assuming that the same holds for the other disciplines, and using a conservative estimate for this proportion of unknown journals (at least half), one comes to the conclusion that for the ten fields of science listed below, only ca. 2-4% of scientific journals is currently compliant with Plan S.
|Field||Nr. in JCR||Nr. in DOAJ|
** Out of these 48, only 11 were known to me (ca. 25%)
 One journal (Catalysis, Structure & Reactivity) listed in the previous blog post is in fact listed only in DOAJ, not in JCR, so should not have been included in Appendix 2 of the previous post.
 The JCR categories included in this analysis are listed in Appendix 1. These were chosen because of seeming to have one theme in common (see Appendix 1), although probably for biology some others categories might have been included (e.g. plant sciences, zoology), but then the decision becomes arbitrary and hence only the ones listed in Appendix 1 were included.
 The list of journals per category is given in this Google Sheet.
Appendix 1. JCR categories included
BioBIOCHEMICAL RESEARCH METHODS
BIOCHEMISTRY & MOLECULAR BIOLOGY
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
CHEMISTRY, INORGANIC & NUCLEAR
CompSciCOMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE
COMPUTER SCIENCE, CYBERNETICS
COMPUTER SCIENCE, HARDWARE & ARCHITECTURE
COMPUTER SCIENCE, INFORMATION SYSTEMS
COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
COMPUTER SCIENCE, SOFTWARE ENGINEERING
COMPUTER SCIENCE, THEORY & METHODS
ENGINEERING, ELECTRICAL & ELECTRONIC
MATHEMATICS, INTERDISCIPLINARY APPLICATIONS
MatSciMATERIALS SCIENCE, BIOMATERIALS
MATERIALS SCIENCE, CERAMICS
MATERIALS SCIENCE, CHARACTERIZATION & TESTING
MATERIALS SCIENCE, COATINGS & FILMS
MATERIALS SCIENCE, COMPOSITES
MATERIALS SCIENCE, MULTIDISCIPLINARY
MATERIALS SCIENCE, PAPER & WOOD
MATERIALS SCIENCE, TEXTILES
MEDICAL LABORATORY TECHNOLOGY
MEDICINE, GENERAL & INTERNAL
MEDICINE, RESEARCH & EXPERIMENTAL
PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
PHYSICS, CONDENSED MATTER
PHYSICS, FLUIDS & PLASMAS
PHYSICS, PARTICLES & FIELDS
SOCIAL SCIENCES, BIOMEDICAL
SOCIAL SCIENCES, INTERDISCIPLINARY
SOCIAL SCIENCES, MATHEMATICAL METHODS