Hello, there, I wonder if there is an easier way that I would only get the rows that satisfies some condition. For example:I have the following matrix, and I would like to output only the 3rd row and 4th row, since only these two rows contain the numbers greater than 11 > a [,1] [,2] [,3] [,4] [,5] [1,] 1 5 9 13 17 [2,] 2 6 10 14 18 [3,] 3 7 11 15 19 [4,] 4 8 12 16 20 > a>11 [,1] [,2] [,3] [,4] [,5] [1,] FALSE FALSE FALSE TRUE TRUE [2,] FALSE FALSE FALSE TRUE TRUE [3,] FALSE FALSE FALSE TRUE TRUE [4,] FALSE FALSE TRUE TRUE TRUE I have tried to use a[a>11, ] and it did not work. Thanks a lot for the help:)
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