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Passing Variable Number of Arrays to a function with varargin

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Hello,
I would like to have a function that will take either one array or a number of them merged into one array within the function, which will then be plotted. The beginning of it is as follows:
function temp_array = fft100v(first_array,varargin)
% Plots the first 100 frequencies in in_array
% This assumes that sample interval is 1000 samples per second
% If length of array is shorter or longer than 1000, pad or cut it as
% appropriate
len_orig = length(first_array);
if nargin > 1
for n = 2:nargin
temp = varargin{n};
if length(temp) ~= len_orig
error('Arrays not of equal length');
end
end
end
The program craps out at the line "temp = varargin{n}" for more than one input with "Index exceeds matrix dimensions". It DOES have the curly braces on the "n". Guess I don't know enough about cell arrays.
Thanks.
Doug Anderson

Akzeptierte Antwort

random09983492
random09983492 am 20 Jun. 2013
Hi Doug,
varargin starts at index 1, not index 2. That should fix it up.
  1 Kommentar
Douglas Anderson
Douglas Anderson am 20 Jun. 2013
Thanks!
I had to figure out how nargin relates also.
if nargin > 1
for n = 1:nargin-1
temp = varargin{n};
if length(temp) ~= len_orig
error('Arrays not of equal length');
end
end
end
The loop can't go to the total nargin value, since the first one is also counted in the nargin!
Much appreciated.
Doug

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