删除数组中特定索引范围之间的值 [英] Delete values between specific ranges of indices in an array

问题描述

我有一个数组:

Z = [1 24 3 4 52 66 77 8 21 100 101 120 155];

我还有另一个数组:

deletevaluesatindex=[1 3; 6 7;10 12]

我想删除数组deletevaluesatindex中表示的索引(1到3、6到7、10到12)的数组Z中的值

I want to delete the values in array Z at indices (1 to 3, 6 to 7, 10 to 12) represented in the array deletevaluesatindex

所以Z的结果是:

Z=[4 52 8 21 155];

我尝试使用下面的表达式，但它不起作用:

I tried to use the expression below, but it does not work:

X([deletevaluesatindex])=[]

推荐答案

这可以做到:

rdvi= size(deletevaluesatindex,1);   %finding rows of 'deletevaluesatindex'
temp = cell(1,rdvi);     %Pre-allocation

for i=1:rdvi
    %making a cell array of elements to be removed 
    temp(i)={deletevaluesatindex(i,1):deletevaluesatindex(i,2)};
end

temp = cell2mat(temp); %Now temp array contains the elements to be removed
Z(temp)=[]  % Removing the elements

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