I can I do logical indexing on a column

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Engdaw Chane 2018-7-20

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评论： Engdaw Chane 2018-7-20

Hello everyone,

I have a column which is 840 in length. It contains value s from -12 to 12. I need only values < -8 and >8. I need to keep the length 840. I tried the following. but it says " 0x1 empty double column vector".

v = zeros (size (data)); % Pre-allocate!

v=data(data <-8 & data>8)

thank you for helping.

Chane

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Birdman 2018-7-20

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编辑：Birdman 2018-7-20

在 MATLAB Online 中打开

Is it possible for a value to be smaller than -8 and greater than 8 at the same time? Check your logical operator. You need OR operator instead of AND.

v=data(data <-8 | data>8)

You can not keep the length same. If you want that, fill the other values with a specific value, like zero.