# Distance Matrix Latitude Longitude (Scripts) 1.0

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• Last update: 5 years ago
• Price: Free |
• Operating system: Linux, Mac OS X, Win All, BSD, Solaris
• Publisher: Mike Sheppard (29 other programs)
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## Distance Matrix Latitude Longitude (Scripts) Publisher's description

### DISTMATLATLON Computes distance matrix between list of coords in X and Y

DISTMATLATLON Computes distance matrix between list of coords in X and Y
D = DISTMATLATLON(X,Y) for matrices X and Y, with columns [Lat Lon],
returns the distance matrix where the (i,j)th entry is the distance
between the i'th and j'th row of X and Y respectively.

X and Y must have columns in the form of [Lat Lon], but can be different
in number of rows.

[D,XI,YI]=DISTMATLATLON(X,Y,varargin) gives the indices of the sorted
values of matrix D, depending on the inputs of varargin.
(The n'th row of XI is the ordering of distance to each member of Y in
relationship to X(n); similarly for YI. The ordering is specified by
the user, see below)

To compare a matrix with itself use DISTMATLATLON(X,X)

Optional Parameters (in any order):

ORDERING
'ascend' : Rank XI and YI in ascending order. (DEFAULT)
'descend' : Rank XI and YI in descending order.

DISTANCE COMPUTATION
'gc' : Great Circle Distance (DEFAULT)
'rh' : Rhumb Line Distance

UNITS OUTPUT
'km' : Kilometers (DEFAULT)
'nm' : Nautical Miles
'sm' : Statute Miles

EXAMPLE:
X is 3 major US cities representing DC, NYC, and LA
Y is 2 major European cities representing London and Paris
What is the distance between each city in X to each city in Y,
in kilometers, and their ordering?
X=[38.895, -77.037; 40.717, -74.000; 34.050, -118.250];
Y=[51.507, -00.128; 48.857, 02.351];
[D,XI,YI]=distmatlatlon(X,Y)

#### System Requirements:

MATLAB 7.11 (2010b)
Program Release Status: New Release
Program Install Support: Install and Uninstall

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