I have a bunch of messy data I have to go through. The data is stored in an odd format, so str2num isn't working. And even when I get it to work, it is still too slow!
I need you to turn the strings into numbers. Any '+++++++' values are values that overloaded the data collection device and should be set to NaN.
'- 6.496' => -6.496
'-10.430' => -10.430
'+++++++' => NaN
'+11.664' => 11.664
Oh, and output it into an array because I hate working with cells. And there's a lot of data so it had better be fast!
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Last Solution submitted on Sep 21, 2026

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William Chris Cleveland George Berken David Hill

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