title: Is it possible to calculate Euclidean Distance between two varying length matrices?
body: <p>I have started working on online signature data-set for verification purpose. I have two matrices containing digitized data of two signatures of varying length (the number of rows differ). e.g. one is 177×7 and second is 170×7.</p>
  
  <p>I want to treat each column as one time series and I'd like to compare one time series of a signature with the corresponding time series of second signature.</p>
  
  <p>How should I align the two time series? </p>