Parameter for y-axis limits

[patzf]

I guess this is by design and intentional that the y-axes limit are automatically computed and chosen. Still, it would be nice to have the option to pass ymin, ymax to the plots, similar to the limtis of the x axes. Did I oversee that option?

[rlkamalapurkar]

All commands and environments are set up to pass options to the underlying pgfplots commands and environments. For example, axes/mag/{options} will pass options to the semilogaxis environment of the magnitude plot and axes/ph/{options} will pass options to the semilogaxis environment of the phase plot. You can pass any options accepted by the semilogaxis environment there, including ymin and ymax. The example below uses \BodeZPK but a similar approach should work with all bodeplot commands and environments.

 \BodeZPK[%
     plot/mag/{red,thick},
     plot/ph/{blue,thick},
     axes/mag/{%
         ytick distance=40,
         ymin = -120,
         ymax = 80,
     },
     axes/ph/{%
         ytick distance=90,
         ymin = 0,
         ymax = 360
     },
     approx/linear%
 ]{%
     z/{0,{-0.1,-0.5},{-0.1,0.5}},
     p/{{-0.5,-10},{-0.5,10}},
     k/10 %
 } {0.01} {100}