Hello, I'm making a KML file using the code found on this page: http://www.mathworks.com/help/toolbox/map/ref/kmlwrite.html.

But I have to grab the longitude and latitude on a .ndk file, and I'm not sure how to incorporate that into my script.

This is what I have so far. I know the .ndk part is right, but I don't know how to stick it back into the code that creates the kml. Sorry ahead of time; I'm a total noob.

inputFilename = 'M:\week2\may11.ndk';
inputFile = fopen(inputFilename);

while (feof(inputFile) == 0)
% Read input file in blocks of 5
for i = 1:numLinesInBlock
% Read line from input file
currentLine = fgetl(inputFile);

% If we have the first line, then process it
if (i == 1)
% Extract the information we need
lat = strtrim( currentLine(28:33) );
lon = strtrim( currentLine(35:41) );

elseif (i == 2)
CMT_ID = strtrim( currentLine(1:16) );

end
end
end

filename = 'M:\week2\week2.kml';
kmlwrite(filename, lat, lon, 'Name,' CMT_ID);

Sorry, I can't understand what is your problem...
There are variables not defined in your code, and I don't know what is the content of the .ndk file, so I can't understand what are you asking.

The .ndk file is in this zip file. Here is the description.

Ok, what is the problem with the code?

Nothing. Figured it out, thanks :)

clc;
clear all;

inputFilename = 'M:\week2\may11.ndk';
inputFile = fopen(inputFilename);

numLinesInBlock = 5; % Each CMT record spans over five lines


while (feof(inputFile) == 0)
for i = 1:numLinesInBlock
currentLine = fgetl(inputFile);

if (i == 1)
% Extract the information we need
description = strtrim( currentLine(57:80) );
date = strtrim( currentLine(6:15) );
time = strtrim( currentLine(17:26) );
latitude = strtrim( currentLine(28:33) );
longitude = strtrim( currentLine(35:41) );
depth = strtrim( currentLine(43:47) );
mb = strtrim( currentLine(49:51) );
ms = strtrim( currentLine(53:55) );

elseif (i == 2)
CMT_ID = strtrim( currentLine(1:16) );

filename = 'M:\week2\week2.kml';
kmlwrite(filename, latitude, longitude, 'Description', description);
end
end
end

fclose(inputFile);
fclose(outputFile);