Added TIC and AIC function. TIC takes a FitRes, while AIC needs also the...

Added TIC and AIC function. TIC takes a FitRes, while AIC needs also the number of data point used in the fit

src/FitRoutines.jl

@@ -7,7 +7,7 @@ include("types.jl")
 include("pvalue.jl")
 include("fit_functions.jl")
 include("fit_scan.jl")
-
+include("utils.jl")
 
 export pvalue, fit_routine, FitRes, fit_scan
 end # module FitRoutines

src/utils.jl

+function TIC(f::FitRes{NT}) where NT <:Union{NamedTuple,Nothing}
+    return f.chi2 - 2f.chiexp
+end
+
+function AIC(f::FitRes{NT},ndata::Int64) where NT<:Union{NamedTuple,Nothing}
+    return f.chi2 + 2length(f.par) - 2ndata
+end