TBH I can't remember the last time I saw non-normalized correlations in a study and the paper lost some credibility.. who does that, and why? What does a correlation of 25.76 mean? Relative to what? That's why you bound it 0 to 1.
Correlation is constrained to 0 and 1 as a side effect of the mathematics.
The definition of correlation mentioned in the paper makes zero sense whatsoever and apparently invokes Bayes's rule?
Re:On GitHub’s Programming Languages
by TearsInTheRain on Thursday March 31, 2016 @04:09PM
(#11400222)
the correlation is that out of the people that program in language A, X% of them also program in language B. This can also be expressed as given that someone programs in language A, the probability that they program in language B is X. It looks like the table is expressing the correlation in terms of % even though they dont mention that on the table.
EDIT: I'm dumb
Re:On GitHub’s Programming Languages
by AnimalMuppet on Thursday March 31, 2016 @04:18PM
(#11400289)
Because they're percentages.
Or are any of them greater than 100?
Ruby: CSS is 25.76 Python: CSS is 15.75
Go is gaining fastest adoption from C, Ruby and Python developers.