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−% EVENLY defines if the data is evenly sampled or not
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−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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−% 
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−% DESCRIPTION: 
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−%
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−% CALL:     evenly = evenly(data)
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−%
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−% INPUTS:   tsdata - a tsdata object
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−%
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−% OUTPUTS:  evenly - signals whether the data is regularly sampled or not
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−%
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−% VERSION:  $Id: evenly.m,v 1.1 2010/04/30 14:56:30 nicolodi Exp $ 
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−%
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−%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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−
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−function evenly = evenly(data)
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−
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−  % if the x vector has a null dimension ether the tsdata is empty or
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−  % the x vector has been collapsed. in those cases the data is
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−  % assumed to be evenly sampled
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−  if isempty(data.x)
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−    evenly = true;
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−    return;
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−  end
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−  
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−  % otherwise we fall back to the fitfs method
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−  [fs, t0, uneven] = tsdata.fitfs(data.x);
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−  evenly = ~uneven;
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−  
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−end
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−