find nearest value in array in matlab

To find the nearest value in an array in Matlab, you can use the min function. The min function returns the smallest element of an array, along with its index. If you provide it with an array and a scalar value x, it will return the smallest element in the array that is greater than or equal to x.

Therefore, you can subtract the value you are searching for from the array, take the absolute value of the result and find the index of the minimum. This will give you the index of the element in the array that is closest to the value you are searching for. Here is a code snippet to accomplish this:

main.m
array = [1, 3, 6, 9, 11];
search_value = 7;

[~, idx] = min(abs(array - search_value));
nearest_value = array(idx);
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This code snippet will return the value 6 since that is the element in the array that is nearest to 7.