Abstract
Potential competing interests: No potential competing interests to declare.1. R2 is the determination coefficient, not the correlation coefficient.Range of R2 [0,1]; The correlation coefficient lies in [-1,+1].R2 is a regression parameter (statistics), using R2 requires an ANOVA table and significance tests (t-test for slope parameter and F-test for the model) as well.2. There must be numbers in mathematical equations.3. In categorical data, mode should be used as the location parameter.
Keywords
Characterization (materials science)
Linguistics
Cognitive science
Computer science
Natural language processing
History
Philosophy
Psychology
Nanotechnology
Materials science
Subject Areas
Statistical Methods and Applications
·Statistics and Probability ·Physical Sciences
Diverse Scientific and Engineering Research
·Computational Mechanics ·Physical Sciences
Diverse scientific research topics
·Management Science and Operations Research ·Social Sciences