near

PURPOSE

NEAR finds the indices of x that are closest to the point x0.

SYNOPSIS

function [index,distance]=near(x,x0,n);

DESCRIPTION

 NEAR  finds the indices of x that are closest to the point x0.
function [index,distance]=near(x,x0,[n]);
     x is an array, x0 is a point, n is the number of closest points to get
     (in order of increasing distance).  Distance is the abs(x-x0)

CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

tind TIND finds index of Julian day array closest to the specified Gregorian time

SOURCE CODE

0001 function [index,distance]=near(x,x0,n);
0002 % NEAR  finds the indices of x that are closest to the point x0.
0003 %function [index,distance]=near(x,x0,[n]);
0004 %     x is an array, x0 is a point, n is the number of closest points to get
0005 %     (in order of increasing distance).  Distance is the abs(x-x0)
0006 if nargin==2
0007      n=1;
0008 end
0009 [distance,index]=sort(abs(x-x0));
0010 distance=distance(1:n);
0011 index=index(1:n);