search for: ppccnorm

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2008 Sep 15
0
how to calculate PPCC?
...qweibull(pp, shape=shape, scale=scale), x)} / I clearly read, "/only for weibull"/ however I wrote similar functions for /normal, exponential, poisson, and lognormal. / Could someone says me if these functions are correct? Are there other ways to estimate the correlation coefficient? /PPCCNORM <- function(x,mean,sd) { x <- sort(x) pp <- ppoints(x) cor(qnorm(pp,mean=mean,sd=sd),x) } PPCCLOG <- function(x,mean,sd) { x <- sort(x) pp <- ppoints(x) cor(qlnorm(pp,meanlog=mean,sdlog=sd),x) } PPCCPOIS <- function(x,lambda) { x <- sort(x) pp <- p...