Metric	Name	Ref.	Remark
MRE	Magnitude of Relative Error	[22]	\|y^'_i − y_i\|/y_i
BRE	Balanced Relative Error	[24]	\|y^'_i − y_i\|/min(y^'_i, y_i)
MER	Magnitude of Error Relative	[25]	\|y^'_i − y_i\|/y^'_i
MMRE	Mean Magnitude of Relative Error	[22]
PRED(1)	Prediction at Level l	[22]
MdMRE	Median Magnitude of Relative Error	[26]	median (MRE)
Pearson’s correlation	Relation between two sets of data (estimated and actual)	[27]
Friedman test	Non-parametric hypothesis test as an alternative to one-way ANOVA	[26]
Wilcoxon matched pairs signed-rank test	Non-parametric as an alternative to parametric paired simple t-test	[28]
Kruskal-Wallis ANOVA test	Non-parametric as alternative one-way ANOVA > 3 samples	[29]