0.0323-1.2258 0.0323-0.22581.129 0.03230.22580.12 1.96770.774 1.03233.7742-1.8710 2.9677177420.1290 19677-2225821290 0.0323-3.22582.1290 1.03231.22581.8710 3.03231.77423.1290 1.03232.77424.1290 0.03233.77422.1290 虽然使用上面的方法有效,但比使用 MATLAB的数组操作功能要慢。复制 avg temp, 使得它与 temps有同样的大小,然后再做减法,这样就快得多 temp(ones( 31, 1), 0.0323-0.2258-1.871 3.03230.77422.1290 0.0323-3.22580.8710 2.0323-0.22583.1290 0.03 1290 -0.96770.7742-0.8710 3.03230.7742-4.8710 3.96771.77420.1290 7.03231.2258-1.8710 0.0323-1.2258-1.8710 2.03231.7742-0.8710 -0.9677-0.2258-2.8710 -2.9677-1.22583.1290 -3.9677-0.2258-0.8710 3.0323-0.2258-1.8710 3.96770.77420.1290 0.0323-1.22582.1290 -0.2258-0.8710 -0.22581.1290-1.9677 -1.2258 -2.8710 0.0323 -1.2258 2.1290 -2.9677 -0.2258 -0.8710 0.0323 -0.2258 1.1290 0.0323 -0.2258 0.1290 -1.9677 0.7742 -2.8710 1.0323 3.7742 -1.8710 -2.9677 1.7742 0.1290 -1.9677 -2.2258 2.1290 2.0323 -1.2258 1.1290 0.0323 -3.2258 2.1290 1.0323 -1.2258 -1.8710 3.0323 1.7742 3.1290 1.0323 2.7742 4.1290 0.0323 3.7742 2.1290 虽然使用上面的方法有效，但比使用 MATLAB 的数组操作功能要慢。复制 avg_temp， 使得它与 temps 有同样的大小，然后再做减法，这样就快得多。 » tdev=temps-avg_temp(ones(31,1),:) tdev = 0.0323 -0.2258 -1.8710 3.0323 0.7742 2.1290 0.0323 -3.2258 -0.8710 2.0323 -0.2258 3.1290 0.0323 -2.2258 2.1290 -0.9677 0.7742 -0.8710 3.0323 0.7742 -4.8710 -3.9677 1.7742 0.1290 7.0323 -1.2258 -1.8710 0.0323 -1.2258 -1.8710 2.0323 1.7742 -0.8710 -0.9677 -0.2258 -2.8710 -2.9677 -1.2258 3.1290 -3.9677 -0.2258 -0.8710 3.0323 -0.2258 -1.8710 -3.9677 0.7742 0.1290 -1.9677 -1.2258 -2.8710 0.0323 -1.2258 2.1290 -2.9677 -0.2258 -0.8710 0.0323 -0.2258 1.1290