Zipf {VGAM} | R Documentation |
Density, and cumulative distribution function for the Zipf distribution.
dzipf(x, N, s, log = FALSE) pzipf(q, N, s, log.p = FALSE)
x, q |
vector of quantiles. |
N, s |
the number of elements, and the exponent characterizing the
distribution.
See |
log |
Logical.
If |
log.p |
This is a finite version of the zeta distribution.
See zipf
for more details.
dzipf
gives the density, and
pzipf
gives the cumulative distribution function.
T. W. Yee
zipf
.
N <- 10; s <- 0.5; y <- 1:N proby <- dzipf(y, N = N, s = s) ## Not run: plot(proby ~ y, type = "h", col = "blue", ylab = "Probability", ylim = c(0, 0.2), main = paste("Zipf(N = ",N,", s = ",s,")", sep = ""), lwd = 2, las = 1) ## End(Not run) sum(proby) # Should be 1 max(abs(cumsum(proby) - pzipf(y, N = N, s = s))) # Should be 0