IPMpack (version 2.1)

growthCum: Models growth allowing for cumulative bin estimation.

Description

Generic function to predict the cdf (cummulative density function) of continuous (e.g. size) stage at t+1 given stage at t and a growth object.

Usage

growthCum(size, sizeNext, cov, growthObj)

Arguments

size

vector of current sizes.

sizeNext

vector of sizes in the next time step.

cov

covariate level in this time step (numeric of length 1).

growthObj

a growth object.

Value

a vector of length sizeNext giving the cdf (cummulative density function) of each value of sizeNext.

See Also

growth

Examples

dff <- generateData()
gr1 <- makeGrowthObj(dff)
sizeRange <- c(1:20)
sizeInit <- 1
growthCum(sizeInit, sizeRange, data.frame(cov=1), gr1)
plot(growthCum(sizeInit, sizeRange, data.frame(cov=1), gr1), type="l", 
	col = "dark gray", xlab = "Continuous (e.g. size) stage at time t+1", 
		ylab = paste("Cummulative growth to a specific size in t+1 from size ", 
			sizeInit, " at time t"))