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| Author |
user:1234 user:me (yours) |
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score:3 (3+) score:0 (none) |
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answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
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Results tagged with filtering
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user 24915
Questions on filtering or selecting data based on certain criteria. This is to be used with primary tags such as list-manipulation, string-manipulation or signal-processing, with the primary tag indicating the specific use case.
5
votes
Accepted
position of rows (or columns) whose elements all satisfy a condition
Use the function VectorQ,
A = {{-1, 2, 3}, {4, 5, 6}, {-7, 8, 9}};
Position[A, x_ /; VectorQ[x, # > 0 &], {1}]
or
Position[VectorQ[#, # > 0 &] & /@ A, True, {1}]
As Mr.Wizard points out that you …
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