Selecting Elements of Matrix Given Index Value...

Question

Michelle De Luna 2020-4-21

0
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https://ww2.mathworks.cn/matlabcentral/answers/519665-selecting-elements-of-matrix-given-index-value

评论： Michelle De Luna 2020-4-21

Hi all!

I have an array with a list of indices that I am interested in extracting from a matrix. For example, the array is [96, 106, 108...] meaning I have to select the 96th, 106th, and 108th elements from a matrix, matrix A. However, matrix A has three columns (latitude, longitude, and frequency). When I try to use a for loop to pull the given elements (all thee columns of the matrix) based on index value, I only get a value for latitude (the first column). This would defeat the purpose of my project, since I would need to have the latitude, longitude, and frequency of all of the index values I have. Any suggestions? Some code provided below:

omit = [96, 106, 108, 134, 167, 194, 200, 203]

A = [latitude longitude frequency]

for i = omit

x = A(i)

end

My output (only latitude values): [-5, -4, -3, 0, 23.5, 30, 35, 75]