weeks=menu('kou kou ti eftoma thelis mpastarte thelis','1','2','3','4')
if weeks==1
    plot(1:7,Tmax(1:7),1:7,Tmin(1:7),1:7,T(1:7))
    rain=Prec(1:7)
else if weeks==2
      plot(8:14,Tmax,8:14,Tmin,8:14,T)
    rain=Prec(8:14)  
else if weeks==3
        plot(15:21,Tmax,15:21,Tmin,15:21,T)
    rain=Prec(15:21)
    else if weeks==4
        plot(22:28,Tmax,22:28,Tmin,22:28,T)
    rain=Prec(22:28)
        else
            disp('timi hello ise telia malakas')
        end
    end
    end
end
h=0;
for k=1:length(rain)
    if rain(k)>0
h=h+1; 
    end
end