Problem 2803. Split up vector or matrix delimited by NaNs

Sky Sartorius

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Given several vectors contained within one vector delimited by NaNs, return each individual vector as an element of a cell vector.
Given several matrices combined in one matrix delimited by all-NaN rows , return each matrix as an element of a cell vector.

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103 Solutions

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Last Solution submitted on Sep 17, 2026

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goc3 on 30 Dec 2014

The problem suite doesn't function properly. The following statement is the culprit:
assert(isequal(c = split_nan_delimited(x), y_correct))
and can be changed to:
assert(isequal(split_nan_delimited(x), c_correct))
for all the test cases.

Guillaume on 30 Dec 2014

Furthermore, do not test for emptiness with isequal. Use isempty instead. There are many ways to generate empty cell arrays and matrices in Matlab, none of which are equal with isequal.

Sky Sartorius on 30 Dec 2014

Doh! Embarrassing copy paste error. I hope it's all fixed now.

Guillaume on 30 Dec 2014

Test 10 still test for emptiness with isequal.

Dyuman Joshi on 24 Sep 2022

Test suite has been updated to include row vectors as test cases as well.

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