error ' Undefined function 'AND' for input arguments of type 'logical'.''

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Nouf Harbi
Nouf Harbi 2018-3-11
评论： Walter Roberson 2018-3-12
i am doing a threshold on three pictures and afterwards applying AND logical operator between them but im getting this error .. this is the line find = AND( Part2_S11 & Part2_S12 & Part2_S22 ) ;
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David Fletcher
David Fletcher 2018-3-11
编辑：David Fletcher 2018-3-11
Isnt that what you were doing with Part2_S11 & Part2_S12 & Part2_S22. When written the and function is lowercase, not uppercase, and it operates on two arguments, not three and not one. Assuming all the matrices are logicals of the same size doesn't this do what you want?
find = Part2_S11 & Part2_S12 & Part2_S22
Walter Roberson
Walter Roberson 2018-3-12
Your arrays appear have at least one complex valued component. It does not make sense to to AND them.

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回答（1 个）

Fangjun Jiang
Fangjun Jiang 2018-3-11
use low case, "and"

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