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: quiverToGraph.m
    path of file: ./repos/matGeom/matGeom/graphs
    
    the code of the file until where you have to start completion: function [v, e] = quiverToGraph(x, y, dx, dy)
%QUIVERTOGRAPH Converts quiver data to quad mesh.
%

    
function [v, e] = quiverToGraph(x, y, dx, dy)
%QUIVERTOGRAPH Converts quiver data to quad mesh.
%
%   [V E] = quiverToGraph(x, y, dx, dy)
%   x, y, dx and dy are matrices the same dimension, typically ones used
%   for display using 'quiver'.
%   V and E are vertex coordinates, and edge vertex indices of the graph
%   joining end