无法识别倍频程RMS函数

Question

各位，似乎在octave的signal包中还没有实现rms函数。

>> y = rms(x)^2
warning: the 'rms' function belongs to the signal package from Octave Forge but
has not yet been implemented.

Please read `http://www.octave.org/missing.html' to learn how you can
contribute missing functionality.

error: 'rms' undefined near line 1 column 5

你知道如何实现我自己的自定义函数来计算RMS值吗？

Answer 1

有一些实现rms的patches on the patch tracker：

截图：

function y = rms (varargin)
  if (nargin != 1 && nargin != 2)
    print_usage ();
  endif
  y = sqrt (meansq (varargin{:}));
endfunction