[問題] 比較數值的落點
有兩個矩陣a與c, 有一個亂數值b；
a矩陣內的元素為0到1的累積矩陣(詳見下例)。
想要判斷當b數值落在a矩陣元素內的區段時, 對應的c矩陣元素就記為1, 否則為0。
程式範例：
a = [0.3, 0.6, 0.85, 1];
b = rand(1);
c = zeros(1:4);
if b < a(1);
c(1) = 1;
else
c(1) = 0;
end
if b > a(1) && b <= a(2);
c(2) = 1;
else
c(2) = 0;
end
if b > a(2) && b <= a(3);
c(3) = 1;
else
c(3) = 0;
end
if b > a(3) && b <= a(4);
c(4) = 1;
else
c(4) = 0;
end
過去我有印象，好像可以透過多層if的判斷來寫, 但當下忘記要怎麼寫了...
所以只能用這種相對比較笨的方式來作多次if 判斷...
不曉得板上有誰能提供比較聰明 & 簡潔的寫法嗎？
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