InPolygon data selection from a data file

Hi

I have following data

Lat  Lon  Reading
23  56  1
24  58  2
26  59  3
22  57  4
25  54  5
29  51  6
22  52  7
21  50  8

now I want to select data which lies in specific lat lon range, lets say lat = 21-25 and lon = 50-54

in polygon function is only allowing me set two points

Answer 1

[amberly hadden]

numbers = xlsread('test.xls');
lats = numbers(:, 1);
lons = numbers(:, 2);
z = numbers(:, 3);
lat1 = 58.4
lon1 = 26.1
z1 = 1.65
lat2 = 58.5
lon2 = 27
z2 = 1.11
desiredLats = lats >= lat1 & lats <= lat2
desiredLons = lons > lon1 & lons <= lon2
desiredZs = z <= z1  & z >= z2
rowsToExtract = desiredLats & desiredLons & desiredZs
extractedRows = numbers(rowsToExtract, :)