cumfirstNot

swordfish.function.cumfirstNot()

If X is a vector:

• If k is unspecified, return the first non-null element in X;

• If k is specified, return the first element that is not k.

If X is a matrix, conduct the aforementioned calculation within each column of X. The result is a matrix with the same shape as X.

Parameters:

• X (Constant) – A scalar/vector/matrix/table/tuple (with scalars or equal-length vectors)/dictionary.

• k (Constant) – A scalar.