\begin{WideFig}
\centering
\begin{tikzpicture}
\begin{polaraxis}[
  width=\figureW, height=\figureH,
  ymin=0, ymax=5,
  grid=both,
  xtick={0,60,120,180,240,300},
  xticklabels={Rep.,Locus,Obj.,Data,Time,Human},
  legend columns=3,
  legend style={draw=none, at={(0.5,1.03)}, anchor=south, font=\small},
  tick label style={font=\small},
]
% Lrn, Evo, Sym
\RadarPoly{very thick, mark=*, mark options={solid}, mark size=2pt}{0}{0}{4}{4}{4}{1}
\addlegendentry{\Lrn}
\RadarPoly{densely dashed, very thick, mark=square*, mark options={solid}, mark size=2.2pt}{2}{5}{5}{2}{5}{2}
\addlegendentry{\Evo}
\RadarPoly{dashdotdotted, very thick, mark=triangle*, mark options={solid}, mark size=2.4pt}{5}{4}{4}{5}{3}{5}
\addlegendentry{\Sym}
\end{polaraxis}
\end{tikzpicture}
\caption{Orthogonal axes (0–5) for \Lrn, \Evo, \Sym.}
\label{fig:opt-radar-1}
\end{WideFig}