Efficiently find a value in a matrix
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Hey all,
So I have a simple 1D matrix that I'm trying to find a specific value in. I know of a way to do it, but my main question is if anyone knows of a more effcient way? As of current, I'm using as part of an operation that occurs on the order of millions or even billions of times, and using the matlab profiler it's told me that this is far and beyond the most inefficient part of the whole process.
This is how I currently do it...the third line take up ~60% of my run time
DummyData = [1,3,5,7,9];
ValueToFind = 3;
[~,Index] = min(abs(DummyDaya - ValueToFind));
2 个评论
Stephen23
2021-3-26
If you want to "find a specific value" why are you using code that just finds the closest value?
John Gilmore
2021-3-29
采纳的回答
weikang zhao
2021-3-27
0 个投票
From the perspective of computational complexity, your code can no longer be optimized. You can seek help from GPU acceleration or parallel computing.
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