Peak_to_Peak 计算

function y = peak2peak(signal)
% Return the peak-to-peak amplitude of the supplied signal.  This is the
% same as max(signal) minus min(signal).
%
% Usage: y = PEAK2PEAK(signal);
%
%        SIGNAL is your one-dimensional input array
%
% Author: sparafucile17

% Input must have some length
if(length(signal) == 1)
    error('ERROR: input signal must have more than one element');
end

% This function only supports one-dimensional arrays
if((size(signal, 2) ~= 1) && (size(signal, 1) ~= 1))
    error('ERROR: Input must be one-dimensional');
end

% Find the peak and return it
min_sig = min(signal);
max_sig = max(signal);

% Answer
y = max_sig - min_sig;

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