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Asked: 2026-05-20T09:52:32+00:00

I’ve been learning matlab for the past week as my job requires it, but

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I’ve been learning matlab for the past week as my job requires it, but I’m kinda stuck. I want to create a function that removes all data points within lowerBound and upperBound. What’s wrong with this code? 

mask = ~((data.HB_X > lowerBound) && (data.HB_X < upperBound));
data.HB_X = data.HB_X(mask);
data.HB_Y = data.HB_Y(mask);

The error is

??? Operands to the || and && operators must be convertible to logical scalar values.

Error in ==> myGUI>deleteHBs at 228
        mask = ~((data.HB_X > lowerBound) && (data.HB_X < upperBound));
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1 Answer

  1. Editorial Team

    The problem is exactly what the error message says. You can only use the shortcut operators && and || for scalar comparisons. If you compare arrays, you need to use & and |, respectively.

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