MATLAB: Select data from specific range

read datadata from specific range

Dear all,
My file have 3 column and more than hundred line..First column represent latitude, second longitude and lastly sea level. My plan is to average the sea level data based on specific range of latitude and longitude..I try design the program but still not work..Let say my file name is 200012.txt and i try to extract sea level data in range of (2<lat<3) & (95<lon<97)..But still not success. Help me
f=load('200012.txt'); lat=f(:,1); lon=f(:,2); sla=f(:,3);
x=sla(find((2<lat<3) & (95<lon<97)))

Best Answer

Hello,
I have a text file formated :
1         90        100
1         96        101
1         95        102
2         91        103
2         96        104
1         89        105
3         87        106
3         96        107
2         90        108
4         97        109
2         76        110
And Here the script :
clear; clc;
f = load('200012.txt');
lat = f(:,1); 
lon = f(:,2); 
sla = f(:,3);
%x = sla(find((2<lat<3) & (95<lon<97)))
r = sla(find(lat >=2 & lat <= 3 & lon >=95 & lon <= 97))
The Result :
r =
     104
     107
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