| stepfunc | R Documentation |
Step functions for relaxation methods
purestep(k)
decrstep(k, param)
decrstep5(k)
decrstep10(k)
decrstep20(k)
k |
iteration number. |
param |
parameter for the decreasing step function after which the step decreases. |
The decrstep function is a decreasing step serie such that decrstep(k)
equals to 1/2/(k - param) when k>param, 1/2, otherwise.
Functions decrstep5, decrstep10, decrstep20 are just wrappers of
decrstep.
The purestep function implements a constant step serie equaled to 1.
A numeric.
Christophe Dutang
See also GNE and GNE.fpeq.
cbind(
purestep(1:20),
decrstep(1:20, 7),
decrstep5(1:20),
decrstep10(1:20),
decrstep20(1:20)
)
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