You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: nnpdist.m
    path of file: ./repos/Pedestrian_Alignment/matlab/xtest/suite
    
    the code of the file until where you have to start completion: classdef nnpdist < nntest
  properties (TestParameter)
    oneToOne = {false, true}
    noRoot = {false, true}
    p = {.5 1 2 3}
    aggregate = {false, true}
  end
  methods (Test)
    function basic(test,oneToOne, noRoot, p, aggregate)
      if aggregate
        % make it smaller to avoid numerical derivative issues with
        % float
        h = 3 ;
        w = 2 ;
      else
        h = 13 ;
        w = 17 ;
      end
      d = 4 ;
      n = 5 ;
      x = test.randn(h,w,d,n) ;
      if oneToOne
      
    
function basic(test,oneToOne, noRoot, p, aggregate)
      if aggregate
        % make it smaller to avoid numerical derivative issues with
        % float
        h = 3 ;
        w = 2 ;
      else
        h = 13 ;
        w = 17 ;
      end
      d = 4 ;
      n = 5 ;
      x = test.randn(h,w,d,n) ;
      if oneToOne
        x0 = test.randn(h,w,d,n) ;
      else
        x0 = test.randn(1,1,d,n) ;
      end
      opts = {'noRoot', noRoot, 'aggregate', aggregate} ;

      y = vl_nnpdist(x, x0, p, opts{:}) ;

      % make sure they are not too close in any dimension as this may be a
      % problem for the finite difference dereivatives as one could
      % approach 0 which is not differentiable for some p-norms

      s = abs(bsxfun(@minus, x, x0)) < test.range*1e-1 ;
      x(s) = x(s) + 5*test.range ;

      dzdy = test.rand(size(y)) ;
      [dzdx, dzdx0] = vl_nnpdist(x,x0,p,dzdy,opts{:}) ;
      test.der(@(x) vl_nnpdist(x,x0,p,opts{:}), x, dzdy, dzdx, test.range * 1e-3) ;
      if oneToOne
        % Pdist does not implement backprop of the bsxfun
        test.der(@(x0) vl_nnpdist(x,x0,p,opts{:}), x0, dzdy, dzdx0, test.range * 1e-3) ;
      end