checkClosedUnitBall | R Documentation |
\{\vec{x} \in R^n : \Vert \vec{x} \Vert_{2} \leq 1\}
The function checks if a point (one row in the input argument) is inside the closed unit ball \{\vec{x} \in R^n : \Vert \vec{x} \Vert_2 \leq 1\}
or not.
If the input matrix contains entries that are not numeric, i.e., not representing real numbers, the function throws an error.
The dimension n
is automatically inferred from the input matrix and is equal to the number of columns.
checkClosedUnitBall(x)
x |
Matrix with numeric entries. Each row represents one point |
Vector where each element (TRUE or FALSE) indicates if a point is in the closed unit ball
Klaus Herrmann
x <- matrix(rnorm(30),10,3)
checkClosedUnitBall(x)
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