% Example 9-1: Analysis of temperature data

T = [58 73 73 53 50 48 56 73 73 66 69 63 74 82 84 ...
     91 93 89 91 80 59 69 56 64 63 66 64 74 63 69];
% Days temperature above 75
Tabove75 = T>=75
NoDaysTabove75 = sum(Tabove75)
% Days temperature between 65 and 80
Tbetween65and80 = (T>=65) & (T<=80)
NoDaysTbetween65and80 = sum(Tbetween65and80)
% Days of the month temperature between 50 and 60
datesTbetween50and60 = find((T>=50) & (T<=60))