NoD : Number of developers
NAD : Number of Active Days of an author on a project
NCD : Number of Commits per Developer in a project
SDC : Standard Deviation of Commits per developer in a project
NoCD : Number of Core Developers
PCD : Percentage of Core Developers
NSD : Number of Sponsored Developers
PSD : Percentage of Sponsored Developers
NPR : Total number of Pull Requests
SAPR : Standard deviation of authors per PR
ANAP : Average number of authors per PR
NIS : Number of Issues
SDAI : Standard deviation of authors per issue report
ANAI : The average number of authors per issue report
GDC : Graph Degree centrality
SDD : Standard Deviation of a graph Degree centrality in a project
GBC : Graph Betweenness Centrality
GCC : Graph Closeness Centrality
ND : Network Density
NC : Number of communities
ACC : Average of Commits per Community
SCC : Standard deviation of Commits per Community
ADC : Average number of Developers per Community
SDoC : Standard deviation of Developers per Community
TZ : Number of time zones
ACZ : Average of Commits per time Zone
SCZ : Standard deviation of Commits per time Zones
ADZ : Average number of Developers per time Zone
SDZ : Standard deviation of Developers per time Zones
NR : Number of Releases in a project
PCR : Parentage of Commits per Release
SCR : Standard deviation of Commits per Release
FN : Formal Network
ADPR : Average number of days per PR
ADI : Average number of days per issue report
BFN : Bus Factor Number
TFN : Truck Factor Number
TFC : Truck Factor Coverage
ANCPR : Average number of comments per PR
SCPR : Standard deviation of commits per PR
NCI : Number Comments in issues
ANCI : Average number of comments per issue report
SDCI : Standard Deviation of Comments Count per issue report
RTCPR: Ratio of toxic comments in PR discussions
RTCI : Ratio of toxic comments in issue discussions
RPCPR : Ratio of polite comments in PR discussions
RPCI : Ratio of polite comments in issue discussions
RINC : Ratio of issues with negative sentiments
RNSPRC : Ratio of negative sentiments in PR comments
RAWPR : Ratio of anger words in PR discussions
PSD : Percentage of Sponsored Developers
RAWI : Ratio of anger words in PR discussions
ACCL : Average Communication Comments Length