[num,txt,raw] = xlsread('Temperature set.csv');
% num = flipud(num) ;
depth = num(:,1) ;
s1 = num(:,2) ;
s2 = num(:,3) ;
s3 = num(:,4) ;
s4 = num(:,5) ;
% plot
hold on
plot(s1,depth,'r') ;
plot(s2,depth,'b') ;
plot(s3,depth,'m') ;
plot(s4,depth,'c') ;
set(gca,'xaxisLocation','top')
set(gca,'YDir','reverse');
legend([{'station 1'};{'station 2'}; {'station 3'};{'station 4'}] )