具有对数刻度的极轴 pgfplot

Question

是否可以使用 pgfplot 以对数刻度绘制线性坐标？

\begin{tikzpicture}
  \begin{polaraxis}[xmin=0,xmax=45, xtick={0,45,90}, xticklabels={$0$, $\frac{\pi}{4}$, $\frac{\pi}{2}$},         legend style={at={(0.01,1.)}, anchor=north west,draw=none}, ]

     \addplot [ultra thin, mark=o, only marks, mark size=1]  table[x expr=\thisrowno{0},y index=1] {data.dat};   
\end{polaraxis}
\end{tikzpicture}

我拥有的数据在某个时候会爆炸，但我仍然想展示在值较小时发生的有趣事情。因此，为了解决这个问题，我认为我可以将线性刻度绘制为对数刻度，但我似乎无法在 pgfplot 中找到这样做的方法。这是数据：

     0              2
 0.573          9.757
 1.146          8.911
 1.719          8.196
 2.292          7.592
 2.865           7.08
 3.438          6.644
 4.011          6.266
 4.584          5.934
 5.157          5.638
  5.73          5.373
 6.303          5.134
 6.875           4.92
 7.448          4.792
 8.021          4.701
 8.594          4.619
 9.167          4.544
  9.74          4.476
 10.31          4.414
 10.89          4.359
 11.46           4.31
 12.03          4.267
 12.61          4.229
 13.18          4.198
 13.75          4.172
 14.32          4.153
  14.9           4.14
 15.47          4.133
 16.04          4.134
 16.62          4.142
 17.19          4.157
 17.76          4.182
 18.33          4.215
 18.91          4.259
 19.48          4.313
 20.05          4.381
 20.63          4.463
  21.2           4.56
 21.77          4.677
 22.35          4.815
 22.92          4.978
 23.49          5.171
 24.06          5.398
 24.64          5.666
 25.21          5.985
 25.78          6.365
 26.36          6.821
 26.93          25.97
  27.5          21.63
 28.07          19.99
 28.65          19.16
 29.22          18.61
 29.79          18.22
 30.37          17.93
 30.94           17.7
 31.51          17.53
 32.09          17.41
 32.66          17.33
 33.23          17.31
  33.8          17.37
 34.38          17.65
 34.95          18.42
 35.52           19.8
  36.1          21.66
 36.67          23.92
 37.24          26.61
 37.82          29.81
 38.39          33.64
 38.96          38.27
 39.53          43.96
 40.11          51.08
 40.68           60.2
 41.25          72.24
 41.83           88.8
  42.4          112.9
 42.97          150.8
 43.54            219
 44.12          376.6
 44.69           1120

我现在得到的数字是

Answer 1

没有预定义的东西。你必须手动转换。

\documentclass{article}
\usepackage{pgfplots}
\usepgfplotslibrary{polar}
\newcommand\subticks{0.30103,0.47712125,0.60205999,0.69897,
  0.77815125,0.84509804,0.90308999,0.95424251,
  1.30103,1.47712125,1.60205999,1.69897,
  1.77815125,1.84509804,1.90308999,1.95424251,
  2.30103,2.47712125,2.60205999,2.69897,
  2.77815125,2.84509804,2.90308999,
  2.95424251,3.30103,3.47712125}
\begin{document}
\begin{tikzpicture}
  \begin{polaraxis}[
    xmin=0, xmax=45, xtick={0,45,90},
    xticklabels={$0$, $\frac{\pi}{4}$, $\frac{\pi}{2}$},
    ymin=0, ymax=3.5, ytick={0,1,2,3},
    minor ytick={\subticks},
    yticklabels={$1$,$10^1$,$10^2$,$10^3$},
    legend style={at={(0.01,1.)},anchor=north west,draw=none}
    ]
    \addplot[ultra thin, mark=o, only marks, mark size=1]
      table[x expr=\thisrowno{0},y expr={log10(\thisrowno{1})}] {data.dat};   
\end{polaraxis}
\end{tikzpicture}
\end{document}