sksurv.functions.StepFunction

class sksurv.functions.StepFunction(x, y, *, a=1.0, b=0.0)

Callable step function.

\[f(z) = a * y_i + b, x_i \leq z < x_{i + 1}\]

Parameters

• x (ndarray, shape = (n_points,)) – Values on the x axis in ascending order.

• y (ndarray, shape = (n_points,)) – Corresponding values on the y axis.

• a (float, optional, default: 1.0) – Constant to multiply by.

• b (float, optional, default: 0.0) – Constant offset term.

__init__(x, y, *, a=1.0, b=0.0)

Methods

__init__(x, y, *[, a, b])

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