v1(v1 < 4) = 0;
modify v1 so that any value less than 4 is replaced with the value 0. Please help me making code.
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modify v1 so that any value less than 4 is replaced with the value 0. please help me writing code.
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Ganesh
on 15 Jun 2024
v1 = randi([1 6],1,10) % Example data
% Replace any value less than 4 with 0
v1(v1 < 4) = 0
We use "vector indexing" to achieve this.
When you apply a "condition" on an array, the result will be a logical array where, the corresponding indices in the result will be a 1 or a 0. You can use the result array to apply it back on v1 and modify the values where the "logic" holds true. You can use this to compare an array to a value, or even two equal sized arrays and their corresponding index values! You can find more on this using the following link:
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Ganesh
on 15 Jun 2024
Importantly, all of this would be covered in the free Self Paced Online Course, MATLAB Onramp. It takes only about two hours, a fair tradeoff to asking a question here and getting the answer an hour later.
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