 Usage:  xs = fwttin (x, l, h)  
 
 Input:

  x                      n x 1 array, input data, observed at an equispaced grid 
                         
  l                      p x 1 array, number of father wavelets 
                         
  h                      q x 1 array, wavelet basis coefficients 
                         
 Output:

  xs                     n x 1 array, translation invariant estimator 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
