dilatation {dvfBm} | R Documentation |
Computes the vector a^m : a_i^m= a_{i/m} if i/m is an integer and 0 otherwise. As an example, if a=a^1=(1,-2,1), then a^2=(1,0,-2,0,1),...
dilatation(a = c(1, -2, 1), m = 2)
a |
a numeric vector |
m |
an integer associated to the dilatation factor |
Return a vector of length m*(length(a)-1)+1
J.-F. Coeurjolly
dilatation(c(1,-1,1),1) dilatation(c(1,-1),2) ## dilatation(filt("i2"),5)