"Correct" answer does not have enough precision.
You need more test cases, with different values of n. Otherwise it's trivial to defeat the test suite.
I agree with Sean
I agree with Sean and Guillaume. I had to use "y = round(y*10000)/10000;" to get my code to pass the test.
Replace NaNs with the number that appears to its left in the row.
Maximum value in a matrix
Finding an element in a vector
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